Product Description
Industrial Silent 10HP-300 HP 7.5kw-250 kw 220V/415V/380V 8bar 10 bar 13 bar OEM Rotary Screw Air Compressor with CE ISO
Product Description
Our DM series rotary variable speed screw air compressor can meet the various application needs of customers.
DM series screw air compressor has the advantages of compact structure, low noise and high energy efficiency. These units are widely used in machinery, light industry, textiles, food production and handling, petroleum, chemical industry, metallurgy, mining, electric power, urban construction, biopharmaceuticals, medical research and other industrial fields.
Energy-saving principle
Using the technology of high-efficiency permanent magnet synchronous motor and changing traditional induction motor, we have a patented design of our product with 100% transmission efficiency. Perfectly matched with converter, our air compressor can change speed automatically to keep best running state and reduce energy loss.
Technical parameter
| Model | DM-30A |
| Free air delivery | 2.8~4.15m3/Min 98.8~146cfm |
| Working pressure | 7~13bar |
| Motor Power (Kw) | 22kw 30hp |
| Motor Type | PM |
| Insulation classIP grade | IP54 |
| Voltage | 380V/50Hz/3ph |
| Starting Method | VF |
| Drive method | Driven direct |
| Safety protection device | High temperature, high pressure, blocking, overcurrent, phase default, anti-phase, unstable current. |
| Noise level dB(A) | 68±2 |
| Air Outlet size(Inch) | G3/4 |
| Weight(kg) | 410kg |
| Dimension (mm) | 1330*830*1265mm |
Permanent Magnet motor
1. IE3 high-efficiency energy-saving PM motor saves energy up to 6-7%, compared with 3 phase asynchronous motor. PM motor and male rotor are directly connected on 1 shaft, without transmission efficiency loss
2. Latest air end, one-shaft structure,more compact, stable, Level 1 national standard of energy efficiency.With the design combination of high performance permanent magnet and special rotor structure, our PM motor’s efficiency is 30% greater compared to induction motors of the same size.
3. Due to intelligent inverter technology, PM VSD air compressor saves energy up to 42%.
4.The PM motor has an independent air-cooled cooling system, no need for additional cooling systems.
5. The stator of the motor uses a corona-resistant enameled wire which is specially designed for frequency converters, and features excellent insulating properties and a long service life.
6. The PM motor is designed with a special hermetically-sealed construction, which prevents leakage of lubricating oil.
Inovance frequency inverter
1. The Inovance frequency inverter doesn’t need to be directly
connected to the power grid, enabling quick and easy installation.
2. The inovance frequency inverter has a high-speed output under the control of vectors, offering high precision under the circumstance of steady speed.
3.There is a built-in DC reactor.
4. The inovance frequency inverter has a built in braking circuit.
5. The inovance frequency inverter has a global after-sales service network.
Features
1.The DM series rotary screw air compressor is equipped with a permanent magnetic-synchro motor , which can save up to 15% energy compared with common asynchronous frequency conversion screw compressors and 30% energy compared with common screw compressors.
2. The structure of the whole machine is designed to be more compact, saving much space. Also the volume of permanent magnet synchronous motor is twice smaller than that of common motor. With high-efficiency permanent magnet, the life of permanent magnet motor is more than 15 years.
3. With a soft starting method, the instant values of electric current when the motor starts is largely declined, which can protect the motor and other parts of the air compressor.
4. The whole design is more reasonable for insulating the oil circuit and electrical components, which turns out to be more safe. The combination of Teflon hose and steel pipe reduces vibration and noise effectively.
5. With intelligent display, users can watch the real time running of the unit.
6. High degree of protection and we can offer you products with protection of IP23, IP54 and IP55.
7. High quality, Our products are CE certified.
Main products
Installation Instructions
Packaging & Shipping
Company Profile
Our exhibition
Our service
1.24/7 after sales service support in different languages.
2.Follow up the feedback of products in 2 months interval by email or call.
3.Guidance of installation and commissioning on site can be provided by factory-trained technicians or local Authorized Service Center.
4.Technical training for customers in DEHAHA air compressor factory or working site.
5.Plenty of original spare parts with proven quality are all available from our central stocks in ZheJiang and all distributors’depots.
6.All kinds of technical documents in different languages.
FAQ
1.Why customer choose us?
DHH COMPRESSOR ZheJiang CO.,LTD.with 23 years old history,we are specialized in Rotary Screw Air Compressor.Germany Standard and 13 years exporting experience help us won more than 30 loyal foreign agents.We warmly welcome your small trial order for quality or market test.
2.Are you a manufacturer or trading company?
We are professional manufacturer with big modern factory in HangZhou,China,with professional design team.Both OEM & ODM service can be accepted.
3.Where is your factory located? How can I visit there?
Our factory is located in HangZhou City, ZheJiang Province, China. We can pick up you from ZheJiang , it’s about 1 hour from ZheJiang Xihu (West Lake) Dis. Airport to our factory. Warmly welcome to visit us!
4.What’s your delivery time?
380V 50HZ we can delivery the goods within 14 days. Other electricity or other color we will delivery within 22 days,if urgently order,pls contact our sales in advance.
5.How long is your air compressor warranty?
One year for the whole machine and 2 years for screw air end, except consumable spare parts and we can provide some spare parts of the machines
6.How does your factory do regarding quality control?
Quality is everything. we always attach great importance to quality controlling from the very beginning to the very end. Our factory has gained ISO9001:2015 authentication and CE certificate.
7.How long could your air compressor be used?
Generally, more than 10 years.
8. What’s payment term?
T/T,L/C,D/P,Western Union,Paypal,Credit Card,and etc.Also we could accept USD, RMB, Euro and other currency.
9.How about your customer service?
24 hours on-line service available.48 hours problem solved promise.
10.How about your after-sales service?
(1) Provide customers with installation and commissioning online instructions.
(2) Well-trained engineers available to overseas service.
(3) Worldwide agents and after service available.
| After-sales Service: | Online Support |
|---|---|
| Warranty: | 24montrhs |
| Lubrication Style: | Lubricated |
| Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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|---|---|
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Lead Screws and Clamp Style Collars
If you have a lead screw, you’re probably interested in learning about the Acme thread on this type of shaft. You might also be interested in finding out about the Clamp style collars and Ball screw nut. But before you buy a new screw, make sure you understand what the terminology means. Here are some examples of screw shafts:
Acme thread
The standard ACME thread on a screw shaft is made of a metal that is resistant to corrosion and wear. It is used in a variety of applications. An Acme thread is available in a variety of sizes and styles. General purpose Acme threads are not designed to handle external radial loads and are supported by a shaft bearing and linear guide. Their design is intended to minimize the risk of flank wedging, which can cause friction forces and wear. The Centralizing Acme thread standard caters to applications without radial support and allows the thread to come into contact before its flanks are exposed to radial loads.
The ACME thread was first developed in 1894 for machine tools. While the acme lead screw is still the most popular screw in the US, European machines use the Trapezoidal Thread (Metric Acme). The acme thread is a stronger and more resilient alternative to square threads. It is also easier to cut than square threads and can be cut by using a single-point threading die.
Similarly to the internal threads, the metric versions of Acme are similar to their American counterparts. The only difference is that the metric threads are generally wider and are used more frequently in industrial settings. However, the metric-based screw threads are more common than their American counterparts worldwide. In addition, the Acme thread on screw shafts is used most often on external gears. But there is still a small minority of screw shafts that are made with a metric thread.
ACME screws provide a variety of advantages to users, including self-lubrication and reduced wear and tear. They are also ideal for vertical applications, where a reduced frictional force is required. In addition, ACME screws are highly resistant to back-drive and minimize the risk of backlash. Furthermore, they can be easily checked with readily available thread gauges. So, if you’re looking for a quality ACME screw for your next industrial project, look no further than ACME.
Lead screw coatings
The properties of lead screw materials affect their efficiency. These materials have high anti-corrosion, thermal resistance, and self-lubrication properties, which eliminates the need for lubrication. These coating materials include polytetrafluoroethylene (PFE), polyether ether ketone (PEK), and Vespel. Other desirable properties include high tensile strength, corrosion resistance, and rigidity.
The most common materials for lead screws are carbon steel, stainless steel, and aluminum. Lead screw coatings can be PTFE-based to withstand harsh environments and remove oil and grease. In addition to preventing corrosion, lead screw coatings improve the life of polymer parts. Lead screw assembly manufacturers offer a variety of customization options for their lead screw, including custom-molded nuts, thread forms, and nut bodies.
Lead screws are typically measured in rpm, or revolutions per minute. The PV curve represents the inverse relationship between contact surface pressure and sliding velocity. This value is affected by the material used in the construction of the screw, lubrication conditions, and end fixity. The critical speed of lead screws is determined by their length and minor diameter. End fixity refers to the support for the screw and affects its rigidity and critical speed.
The primary purpose of lead screws is to enable smooth movement. To achieve this, lead screws are usually preloaded with axial load, enabling consistent contact between a screw’s filets and nuts. Lead screws are often used in linear motion control systems and feature a large area of sliding contact between male and female threads. Lead screws can be manually operated or mortised and are available in a variety of sizes and materials. The materials used for lead screws include stainless steel and bronze, which are often protected by a PTFE type coating.
These screws are made of various materials, including stainless steel, bronze, and various plastics. They are also made to meet specific requirements for environmental conditions. In addition to lead screws, they can be made of stainless steel, aluminum, and carbon steel. Surface coatings can improve the screw’s corrosion resistance, while making it more wear resistant in tough environments. A screw that is coated with PTFE will maintain its anti-corrosion properties even in tough environments.
Clamp style collars
The screw shaft clamp style collar is a basic machine component, which is attached to the shaft via multiple screws. These collars act as mechanical stops, load bearing faces, or load transfer points. Their simple design makes them easy to install. This article will discuss the pros and cons of this style of collar. Let’s look at what you need to know before choosing a screw shaft clamp style collar. Here are some things to keep in mind.
Clamp-style shaft collars are a versatile mounting option for shafts. They have a recessed screw that fully engages the thread for secure locking. Screw shaft clamp collars come in different styles and can be used in both drive and power transmission applications. Listed below are the main differences between these two styles of collars. They are compatible with all types of shafts and are able to handle axial loads of up to 5500 pounds.
Clamp-style shaft collars are designed to prevent the screw from accidentally damaging the shaft when tightened. They can be tightened with a set screw to counteract the initial clamping force and prevent the shaft from coming loose. However, when tightening the screw, you should use a torque wrench. Using a set screw to tighten a screw shaft collar can cause it to warp and reduce the surface area that contacts the shaft.
Another key advantage to Clamp-style shaft collars is that they are easy to install. Clamp-style collars are available in one-piece and two-piece designs. These collars lock around the shaft and are easy to remove and install. They are ideal for virtually any shaft and can be installed without removing any components. This type of collar is also recommended for those who work on machines with sensitive components. However, be aware that the higher the OD, the more difficult it is to install and remove the collar.
Screw shaft clamp style collars are usually one-piece. A two-piece collar is easier to install than a one-piece one. The two-piece collars provide a more effective clamping force, as they use the full seating torque. Two-piece collars have the added benefit of being easy to install because they require no tools to install. You can disassemble one-piece collars before installing a two-piece collar.
Ball screw nut
The proper installation of a ball screw nut requires that the nut be installed on the center of the screw shaft. The return tubes of the ball nut must be oriented upward so that the ball nut will not overtravel. The adjusting nut must be tightened against a spacer or spring washer, then the nut is placed on the screw shaft. The nut should be rotated several times in both directions to ensure that it is centered.
Ball screw nuts are typically manufactured with a wide range of preloads. Large preloads are used to increase the rigidity of a ball screw assembly and prevent backlash, the lost motion caused by a clearance between the ball and nut. Using a large amount of preload can lead to excessive heat generation. The most common preload for ball screw nuts is 1 to 3%. This is usually more than enough to prevent backlash, but a higher preload will increase torque requirements.
The diameter of a ball screw is measured from its center, called the ball circle diameter. This diameter represents the distance a ball will travel during one rotation of the screw shaft. A smaller diameter means that there are fewer balls to carry the load. Larger leads mean longer travels per revolution and higher speeds. However, this type of screw cannot carry a greater load capacity. Increasing the length of the ball nut is not practical, due to manufacturing constraints.
The most important component of a ball screw is a ball bearing. This prevents excessive friction between the ball and the nut, which is common in lead-screw and nut combinations. Some ball screws feature preloaded balls, which avoid “wiggle” between the nut and the ball. This is particularly desirable in applications with rapidly changing loads. When this is not possible, the ball screw will experience significant backlash.
A ball screw nut can be either single or multiple circuits. Single or multiple-circuit ball nuts can be configured with one or two independent closed paths. Multi-circuit ball nuts have two or more circuits, making them more suitable for heavier loads. Depending on the application, a ball screw nut can be used for small clearance assemblies and compact sizes. In some cases, end caps and deflectors may be used to feed the balls back to their original position.
editor by CX 2023-11-13
China Coperon Screw Shaft Zk135 for Plastic Factory supplier
Solution Description
WR15E Abrasion Resistance Twin Screw Shaft Diameter ten – 120mm HRC44 Hardness
Creation description:
| Product name | Twin screw shaft | Brand name title | JOINER |
| Design amount | ZK135 | Material | WR15E WR30 40CrNiMo |
| Spline sort | involute internal spline | Spot of authentic | ZheJiang , China |
| Dimensions | Dia ten-120mm/ L 500-900mm | Screw mixture | Brick patern construction |
| Building | With or with no cooling program | LD | 36:1 40:1 forty four:1 48:one |
| Hardness | HRC44 | ||
| Surface area treatment method | vacuum quenching | ||
| Certification | ISO9001 2015 | ||
| Application | Plastic industry Wood plastic inflated Foods powder coating | ||
| For what device | Plastic Wood Meals Twin Extruder machine | ||
| shaft for | APV KOBE OMC Buhler KraussMaffei Theysohn Buss Berstorff Toshiba Clextral Labtech USEON Coperon Lantai others JSW Leistritz Keya Maris |
||
| Our strengths | Competitive expenses per unit of generation Rapidly change spherical for selection and delivery on refurbished parts Components offered from inventory for a wide range of extruder helps make Complete inspection method on all parts prior to dispatch A time proven good quality support Most current producing tactics and metallurgy, making sure steady and reliable functionality of elements Custom-made remedies to meet up with particular wants. |
||
| Getting Xihu (West Lake) Dis.s | Attn:Tracy Han Tel:1825717954 |
||
We manufacture screw shafts for co-rotating twin screw extruders ranging from ten mm to one hundred twenty mm /Length 500-900mm and above. With cooling system /without having cooling system. Our producing specializes in shafts for twin screw extruders and is optimized for flexible get handling.
Sorts of shaft:
One keyway Square keyslot High torque key button Dual keyslot
Involute interior spline Round keyslot Retackle spline Client requirements available
Content
WR15E WR30 40CrNiMo
About our Business
Joiner Equipment Co.,Ltd has many many years experience in the manufacture and source of new and refurbished wear elements for all significant helps make of twin-screw extruders and the Industries associated in plastics business, chemical market, powder coating, meals foodstuff industry, wooden plastic and many others..
By way of near operating interactions with our consumers we have been CZPT to satisfy their specifications. Adaptability permits us to design and style and manufacture normal and bespoke elements for special programs.
Through our extremely skilled and skilled workers we are CZPT to offer you complex help and suggestions.
Our strengths are based mostly on numerous several years expertise supplying the following:
* Aggressive charges for every unit of production
* Quickly change spherical for assortment and delivery on refurbished parts
* Areas accessible from stock for a wide variety of extruder makes
* Comprehensive inspection treatment on all parts prior to dispatch
* A time verified good quality service
* Latest producing methods and metallurgy, making certain regular and dependable functionality of parts
* Tailored solutions to meet up with distinct requirements.
Why select us?
Packaging Delivery
Packaging Details: Wooden case, Sea-worthy or export normal.
Port: HangZhou
Direct time: 40-fifty days soon after get confirmation.
FAQ
Q: Are you investing company or manufacturer ?
A: We are factory.
Q: In which is your manufacturing facility located? How can I visit there?
A: Our manufacturing facility is positioned in HangZhou, ZheJiang Province, China, 1) You can fly to
HangZhou Airport right. We will pick you up when you arrive in the airport All our consumers,
from domestic or overseas, are warmly welcome to go to us
Q: What tends to make you different with others?
A: 1) Our Superb Provider For a quick, no problem estimate just ship electronic mail to us We
assure to reply with a price inside 24 several hours – sometimes even within the hour. If you
need an advice, just contact our export place of work, we will response your
inquiries instantly. 2) Our fast production time For Normal orders, we will
promise to make within thirty operating times. As a manufacturer, we can ensure the shipping time according to the official agreement.
Q: What is your phrases of payment ?
A: 1) T/T payment 2) LC
|
US $500-1,000 / Piece | |
10 Pieces (Min. Order) |
###
| Transport Package: | Wood |
|---|---|
| Trademark: | JOINER |
| Origin: | Sichuan |
###
| Samples: |
US$ 500/Piece
1 Piece(Min.Order) |
|---|
###
| Customization: |
Available
|
|---|
###
| Product name | Twin screw shaft | Brand name | JOINER |
| Model number | ZK135 | Material | WR15E WR30 40CrNiMo |
| Spline type | involute inner spline | Place of original | Sichuan, China |
| Size | Dia 10-120mm/ L 500-900mm | Screw combination | Brick patern construction |
| Construction | With or without cooling system | LD | 36:1 40:1 44:1 48:1 |
| Hardness | HRC44 | ||
| Surface treatment | vacuum quenching | ||
| Certification | ISO9001 2015 | ||
| Application | Plastic industry Wood plastic inflated Food powder coating | ||
| For what machine | Plastic Wood Food Twin Extruder machine | ||
| shaft for | APV KOBE OMC Buhler KraussMaffei Theysohn Buss Berstorff Toshiba Clextral Labtech USEON Coperon Lantai others JSW Leistritz Keya Maris |
||
| Our strengths | Competitive costs per unit of production Fast turn round for collection and delivery on refurbished parts Parts available from stock for a wide range of extruder makes Comprehensive inspection procedure on all parts prior to dispatch A time proven quality service Latest manufacturing techniques and metallurgy, ensuring consistent and reliable performance of parts Customized solutions to meet specific needs. |
||
| Buying Guides | Attn:Tracy Han Tel:008618208137954 |
||
|
US $500-1,000 / Piece | |
10 Pieces (Min. Order) |
###
| Transport Package: | Wood |
|---|---|
| Trademark: | JOINER |
| Origin: | Sichuan |
###
| Samples: |
US$ 500/Piece
1 Piece(Min.Order) |
|---|
###
| Customization: |
Available
|
|---|
###
| Product name | Twin screw shaft | Brand name | JOINER |
| Model number | ZK135 | Material | WR15E WR30 40CrNiMo |
| Spline type | involute inner spline | Place of original | Sichuan, China |
| Size | Dia 10-120mm/ L 500-900mm | Screw combination | Brick patern construction |
| Construction | With or without cooling system | LD | 36:1 40:1 44:1 48:1 |
| Hardness | HRC44 | ||
| Surface treatment | vacuum quenching | ||
| Certification | ISO9001 2015 | ||
| Application | Plastic industry Wood plastic inflated Food powder coating | ||
| For what machine | Plastic Wood Food Twin Extruder machine | ||
| shaft for | APV KOBE OMC Buhler KraussMaffei Theysohn Buss Berstorff Toshiba Clextral Labtech USEON Coperon Lantai others JSW Leistritz Keya Maris |
||
| Our strengths | Competitive costs per unit of production Fast turn round for collection and delivery on refurbished parts Parts available from stock for a wide range of extruder makes Comprehensive inspection procedure on all parts prior to dispatch A time proven quality service Latest manufacturing techniques and metallurgy, ensuring consistent and reliable performance of parts Customized solutions to meet specific needs. |
||
| Buying Guides | Attn:Tracy Han Tel:008618208137954 |
||
Lead Screws and Clamp Style Collars
If you have a lead screw, you’re probably interested in learning about the Acme thread on this type of shaft. You might also be interested in finding out about the Clamp style collars and Ball screw nut. But before you buy a new screw, make sure you understand what the terminology means. Here are some examples of screw shafts:
Acme thread
The standard ACME thread on a screw shaft is made of a metal that is resistant to corrosion and wear. It is used in a variety of applications. An Acme thread is available in a variety of sizes and styles. General purpose Acme threads are not designed to handle external radial loads and are supported by a shaft bearing and linear guide. Their design is intended to minimize the risk of flank wedging, which can cause friction forces and wear. The Centralizing Acme thread standard caters to applications without radial support and allows the thread to come into contact before its flanks are exposed to radial loads.
The ACME thread was first developed in 1894 for machine tools. While the acme lead screw is still the most popular screw in the US, European machines use the Trapezoidal Thread (Metric Acme). The acme thread is a stronger and more resilient alternative to square threads. It is also easier to cut than square threads and can be cut by using a single-point threading die.
Similarly to the internal threads, the metric versions of Acme are similar to their American counterparts. The only difference is that the metric threads are generally wider and are used more frequently in industrial settings. However, the metric-based screw threads are more common than their American counterparts worldwide. In addition, the Acme thread on screw shafts is used most often on external gears. But there is still a small minority of screw shafts that are made with a metric thread.
ACME screws provide a variety of advantages to users, including self-lubrication and reduced wear and tear. They are also ideal for vertical applications, where a reduced frictional force is required. In addition, ACME screws are highly resistant to back-drive and minimize the risk of backlash. Furthermore, they can be easily checked with readily available thread gauges. So, if you’re looking for a quality ACME screw for your next industrial project, look no further than ACME.
Lead screw coatings
The properties of lead screw materials affect their efficiency. These materials have high anti-corrosion, thermal resistance, and self-lubrication properties, which eliminates the need for lubrication. These coating materials include polytetrafluoroethylene (PFE), polyether ether ketone (PEK), and Vespel. Other desirable properties include high tensile strength, corrosion resistance, and rigidity.
The most common materials for lead screws are carbon steel, stainless steel, and aluminum. Lead screw coatings can be PTFE-based to withstand harsh environments and remove oil and grease. In addition to preventing corrosion, lead screw coatings improve the life of polymer parts. Lead screw assembly manufacturers offer a variety of customization options for their lead screw, including custom-molded nuts, thread forms, and nut bodies.
Lead screws are typically measured in rpm, or revolutions per minute. The PV curve represents the inverse relationship between contact surface pressure and sliding velocity. This value is affected by the material used in the construction of the screw, lubrication conditions, and end fixity. The critical speed of lead screws is determined by their length and minor diameter. End fixity refers to the support for the screw and affects its rigidity and critical speed.
The primary purpose of lead screws is to enable smooth movement. To achieve this, lead screws are usually preloaded with axial load, enabling consistent contact between a screw’s filets and nuts. Lead screws are often used in linear motion control systems and feature a large area of sliding contact between male and female threads. Lead screws can be manually operated or mortised and are available in a variety of sizes and materials. The materials used for lead screws include stainless steel and bronze, which are often protected by a PTFE type coating.
These screws are made of various materials, including stainless steel, bronze, and various plastics. They are also made to meet specific requirements for environmental conditions. In addition to lead screws, they can be made of stainless steel, aluminum, and carbon steel. Surface coatings can improve the screw’s corrosion resistance, while making it more wear resistant in tough environments. A screw that is coated with PTFE will maintain its anti-corrosion properties even in tough environments.
Clamp style collars
The screw shaft clamp style collar is a basic machine component, which is attached to the shaft via multiple screws. These collars act as mechanical stops, load bearing faces, or load transfer points. Their simple design makes them easy to install. This article will discuss the pros and cons of this style of collar. Let’s look at what you need to know before choosing a screw shaft clamp style collar. Here are some things to keep in mind.
Clamp-style shaft collars are a versatile mounting option for shafts. They have a recessed screw that fully engages the thread for secure locking. Screw shaft clamp collars come in different styles and can be used in both drive and power transmission applications. Listed below are the main differences between these two styles of collars. They are compatible with all types of shafts and are able to handle axial loads of up to 5500 pounds.
Clamp-style shaft collars are designed to prevent the screw from accidentally damaging the shaft when tightened. They can be tightened with a set screw to counteract the initial clamping force and prevent the shaft from coming loose. However, when tightening the screw, you should use a torque wrench. Using a set screw to tighten a screw shaft collar can cause it to warp and reduce the surface area that contacts the shaft.
Another key advantage to Clamp-style shaft collars is that they are easy to install. Clamp-style collars are available in one-piece and two-piece designs. These collars lock around the shaft and are easy to remove and install. They are ideal for virtually any shaft and can be installed without removing any components. This type of collar is also recommended for those who work on machines with sensitive components. However, be aware that the higher the OD, the more difficult it is to install and remove the collar.
Screw shaft clamp style collars are usually one-piece. A two-piece collar is easier to install than a one-piece one. The two-piece collars provide a more effective clamping force, as they use the full seating torque. Two-piece collars have the added benefit of being easy to install because they require no tools to install. You can disassemble one-piece collars before installing a two-piece collar.
Ball screw nut
The proper installation of a ball screw nut requires that the nut be installed on the center of the screw shaft. The return tubes of the ball nut must be oriented upward so that the ball nut will not overtravel. The adjusting nut must be tightened against a spacer or spring washer, then the nut is placed on the screw shaft. The nut should be rotated several times in both directions to ensure that it is centered.
Ball screw nuts are typically manufactured with a wide range of preloads. Large preloads are used to increase the rigidity of a ball screw assembly and prevent backlash, the lost motion caused by a clearance between the ball and nut. Using a large amount of preload can lead to excessive heat generation. The most common preload for ball screw nuts is 1 to 3%. This is usually more than enough to prevent backlash, but a higher preload will increase torque requirements.
The diameter of a ball screw is measured from its center, called the ball circle diameter. This diameter represents the distance a ball will travel during one rotation of the screw shaft. A smaller diameter means that there are fewer balls to carry the load. Larger leads mean longer travels per revolution and higher speeds. However, this type of screw cannot carry a greater load capacity. Increasing the length of the ball nut is not practical, due to manufacturing constraints.
The most important component of a ball screw is a ball bearing. This prevents excessive friction between the ball and the nut, which is common in lead-screw and nut combinations. Some ball screws feature preloaded balls, which avoid “wiggle” between the nut and the ball. This is particularly desirable in applications with rapidly changing loads. When this is not possible, the ball screw will experience significant backlash.
A ball screw nut can be either single or multiple circuits. Single or multiple-circuit ball nuts can be configured with one or two independent closed paths. Multi-circuit ball nuts have two or more circuits, making them more suitable for heavier loads. Depending on the application, a ball screw nut can be used for small clearance assemblies and compact sizes. In some cases, end caps and deflectors may be used to feed the balls back to their original position.
editor by czh 2022-12-17
China supplier Single Double Screw Gearbox Installed by Ourself with Free Design Custom
Product Description
ZLYJ single-screw plastic extruders gearbox series
Detailed introduction:;
ZLYJ series gearbox is the high-precision transmission device with hard tooth surface and trust bearing designed for single screw extruder.; The product design adopts various technical codes regulated by JB/T9050.;1-1999.;
Main product features:;
1.; The gear of gearbox adopts high-strength alloy steel,; grinded after carburizing and quenching treatment,; with level 6 precision.; The gear rigidness reaches HRC54-62 and the transmission noise is low.;
2.; Equipped with thrust bearing with high bearing capacity,; with reliable performance,; can bear large axial thrust.;
3.; Equipped with forced lubrication and cooling system except for some small specification product.;
4.; ZLYJ series gearbox adopts six-side processing box,; and can be vertically installed according to the user’s requirement besides traditional horizontal installation.;
The gearbox has high transmission efficiency,; low noise,; and can guarantee long-term operation.;
ZSYJ single-screw plastic extruders gearbox series
Detailed introduction:;
ZSYJ series gearbox is the high-precision transmission device with hard tooth surface and trust bearing designed for single screw extruder.; The product design adopts various technical codes regulated by JB/T9050.;1-1999.;
Main product features:;
1.; The gear of gearbox adopts high-strength alloy steel,; grinded after carburizing and quenching treatment,; with level 6 precision.; The gear rigidness reaches HRC54-62 and the transmission noise is low.;
2.; Equipped with thrust bearing with high bearing capacity,; with reliable performance,; can bear large axial thrust.;
3.; Equipped with forced lubrication and cooling system except for some small specification product.;
4.; ZSYJ series gearbox adopts six-side processing box,; and can be vertically installed according to the user’s requirement besides traditional horizontal installation.;
5.; The gearbox has high transmission efficiency,; low noise,; and can guarantee long-term operation.;
| Type | Spec.; | Input Power(KW); | Input | Output | Output Torque(N.;m); | Axial Thrust(KN); | Screw Diameter | Length-diameter Ratio |
| ZLYJ | 112-8 | 5.;5 | 800 | 100 | 525 | 35 | ø35 | 25:;1 |
| 133-8 | 8 | 800 | 100 | 764 | 39 | ø50 | 25:;1 | |
| 146-10 | 11 | 1000 | 100 | 1050 | 54 | ø55 | 25:;1 | |
| 173-10 | 18.;5 | 900 | 90 | 1962 | 110 | ø65 | 25:;1 | |
| 180-10 | 18.;5 | 900 | 90 | 1962 | 110 | ø65 | 25:;1 | |
| 200-12.;5 | 30 | 1000 | 80 | 3581 | 155 | ø75 | 25:;1 | |
| 225-12.;5 | 45 | 1000 | 80 | 5371 | 180 | ø90 | 25:;1 | |
| 250-16 | 55 | 1120 | 70 | 7503 | 192 | ø105 | 25:;1 | |
| 280-16 | 75 | 960 | 60 | 7643 | 258 | ø110 | 25:;1 | |
| 315-16 | 85 | 960 | 60 | 13528 | 287 | ø120 | 25:;1 | |
| 330-16 | 110 | 960 | 60 | 17507 | 360 | ø135 | 25:;1 | |
| 375-16 | 132 | 960 | 60 | 21008 | 390 | ø150 | 25:;1 | |
| 395-16 | 185 | 960 | 60 | 29442 | 400 | ø160 | 25:;1 | |
| 420-16 | 160/220 | 960 | 60 | 31831 | 430 | ø160 | ø170 | |
| 450-20 | 213 | 1000 | 60 | 40640 | 500 | ø180 | 25:;1 | |
| 560-20 | 440 | 1000 | 50 | 84034 | 700 | ø200 | 25:;1 | |
| 630-20 | 540 | 1000 | 50 | 15712 | 770 | ø250 | 25:;1 | |
| ZSYJ | 450-32 | 200 | 1500 | 47 | 4 0571 | 500 | ø165 | 25:;1 |
| 560-57 | 220 | 1500 | 26 | 80802 | 700 | ø190 | 25:;1 | |
| 630-44 | 315 | 1500 | 34 | 88471 | 770 | ø200 | 25:;1 |
Screws and Screw Shafts
A screw is a mechanical device that holds objects together. Screws are usually forged or machined. They are also used in screw jacks and press-fitted vises. Their self-locking properties make them a popular choice in many different industries. Here are some of the benefits of screws and how they work. Also read about their self-locking properties. The following information will help you choose the right screw for your application.
Machined screw shaft
A machined screw shaft can be made of various materials, depending on the application. Screw shafts can be made from stainless steel, brass, bronze, titanium, or iron. Most manufacturers use high-precision CNC machines or lathes to manufacture these products. These products come in many sizes and shapes, and they have varying applications. Different materials are used for different sizes and shapes. Here are some examples of what you can use these screws for:
Screws are widely used in many applications. One of the most common uses is in holding objects together. This type of fastener is used in screw jacks, vises, and screw presses. The thread pitch of a screw can vary. Generally, a smaller pitch results in greater mechanical advantage. Hence, a machined screw shaft should be sized appropriately. This ensures that your product will last for a long time.
A machined screw shaft should be compatible with various threading systems. In general, the ASME system is used for threaded parts. The threaded hole occupies most of the shaft. The thread of the bolt occupy either part of the shaft, or the entire one. There are also alternatives to bolts, including riveting, rolling pins, and pinned shafts. These alternatives are not widely used today, but they are useful for certain niche applications.
If you are using a ball screw, you can choose to anneal the screw shaft. To anneal the screw shaft, use a water-soaked rag as a heat barrier. You can choose from 2 different options, depending on your application. One option is to cover the screw shaft with a dust-proof enclosure. Alternatively, you can install a protective heat barrier over the screw shaft. You can also choose to cover the screw shaft with a dust-proof machine.
If you need a smaller size, you can choose a smaller screw. It may be smaller than a quarter of an inch, but it may still be compatible with another part. The smaller ones, however, will often have a corresponding mating part. These parts are typically denominated by their ANSI numerical size designation, which does not indicate threads-per-inch. There is an industry standard for screw sizes that is a little easier to understand.
Ball screw nut
When choosing a Ball screw nut for a screw shaft, it is important to consider the critical speed of the machine. This value excites the natural frequency of a screw and determines how fast it can be turned. In other words, it varies with the screw diameter and unsupported length. It also depends on the screw shaft’s diameter and end fixity. Depending on the application, the nut can be run at a maximum speed of about 80% of its theoretical critical speed.
The inner return of a ball nut is a cross-over deflector that forces the balls to climb over the crest of the screw. In 1 revolution of the screw, a ball will cross over the nut crest to return to the screw. Similarly, the outer circuit is a circular shape. Both flanges have 1 contact point on the ball shaft, and the nut is connected to the screw shaft by a screw.
The accuracy of ball screws depends on several factors, including the manufacturing precision of the ball grooves, the compactness of the assembly, and the set-up precision of the nut. Depending on the application, the lead accuracy of a ball screw nut may vary significantly. To improve lead accuracy, preloading, and lubrication are important. Ewellix ball screw assembly specialists can help you determine the best option for your application.
A ball screw nut should be preloaded prior to installation in order to achieve the expected service life. The smallest amount of preload required can reduce a ball screw’s calculated life by as much as 90 percent. Using a lubricant of a standard grade is recommended. Some lubricants contain additives. Using grease or oil in place of oil can prolong the life of the screw.
A ball screw nut is a type of threaded nut that is used in a number of different applications. It works similar to a ball bearing in that it contains hardened steel balls that move along a series of inclined races. When choosing a ball screw nut, engineers should consider the following factors: speed, life span, mounting, and lubrication. In addition, there are other considerations, such as the environment in which the screw is used.
Self-locking property of screw shaft
A self-locking screw is 1 that is capable of rotating without the use of a lock washer or bolt. This property is dependent on a number of factors, but 1 of them is the pitch angle of the thread. A screw with a small pitch angle is less likely to self-lock, while a large pitch angle is more likely to spontaneously rotate. The limiting angle of a self-locking thread can be calculated by calculating the torque Mkdw at which the screw is first released.
The pitch angle of the screw’s threads and its coefficient of friction determine the self-locking function of the screw. Other factors that affect its self-locking function include environmental conditions, high or low temperature, and vibration. Self-locking screws are often used in single-line applications and are limited by the size of their pitch. Therefore, the self-locking property of the screw shaft depends on the specific application.
The self-locking feature of a screw is an important factor. If a screw is not in a state of motion, it can be a dangerous or unusable machine. The self-locking property of a screw is critical in many applications, from corkscrews to threaded pipe joints. Screws are also used as power linkages, although their use is rarely necessary for high-power operations. In the archimedes’ screw, for example, the blades of the screw rotate around an axis. A screw conveyor uses a rotating helical chamber to move materials. A micrometer uses a precision-calibrated screw to measure length.
Self-locking screws are commonly used in lead screw technology. Their pitch and coefficient of friction are important factors in determining the self-locking property of screws. This property is advantageous in many applications because it eliminates the need for a costly brake. Its self-locking property means that the screw will be secure without requiring a special kind of force or torque. There are many other factors that contribute to the self-locking property of a screw, but this is the most common factor.
Screws with right-hand threads have threads that angle up to the right. The opposite is true for left-hand screws. While turning a screw counter-clockwise will loosen it, a right-handed person will use a right-handed thumb-up to turn it. Similarly, a left-handed person will use their thumb to turn a screw counter-clockwise. And vice versa.
Materials used to manufacture screw shaft
Many materials are commonly used to manufacture screw shafts. The most common are steel, stainless steel, brass, bronze, and titanium. These materials have advantages and disadvantages that make them good candidates for screw production. Some screw types are also made of copper to fight corrosion and ensure durability over time. Other materials include nylon, Teflon, and aluminum. Brass screws are lightweight and have aesthetic appeal. The choice of material for a screw shaft depends on the use it will be made for.
Shafts are typically produced using 3 steps. Screws are manufactured from large coils, wire, or round bar stock. After these are produced, the blanks are cut to the appropriate length and cold headed. This cold working process pressudes features into the screw head. More complicated screw shapes may require 2 heading processes to achieve the desired shape. The process is very precise and accurate, so it is an ideal choice for screw manufacturing.
The type of material used to manufacture a screw shaft is crucial for the function it will serve. The type of material chosen will depend on where the screw is being used. If the screw is for an indoor project, you can opt for a cheaper, low-tech screw. But if the screw is for an outdoor project, you’ll need to use a specific type of screw. This is because outdoor screws will be exposed to humidity and temperature changes. Some screws may even be coated with a protective coating to protect them from the elements.
Screws can also be self-threading and self-tapping. The self-threading or self-tapping screw creates a complementary helix within the material. Other screws are made with a thread which cuts into the material it fastens. Other types of screws create a helical groove on softer material to provide compression. The most common uses of a screw include holding 2 components together.
There are many types of bolts available. Some are more expensive than others, but they are generally more resistant to corrosion. They can also be made from stainless steel or aluminum. But they require high-strength materials. If you’re wondering what screws are, consider this article. There are tons of options available for screw shaft manufacturing. You’ll be surprised how versatile they can be! The choice is yours, and you can be confident that you’ll find the screw shaft that will best fit your application.
China Custom Torque Arm Position Linear Ebike Industrial Manufacture Nmrv040 Ta300 Screw Driver Pneumatic Shaft Transmission Gear Spare Parts Best Price Stable Torque Arm near me supplier
Product Description
Torque Arm position linear ebike nmrv040 ta300 screw driver pneumatic shaft transmission gear spare parts best price stable industrial manufacture Torque Arm
EPT offers torque arms on right angle gearboxes to provide a pivoted connection source between the gearbox and a fixed, stable anchor point. The torque arm is used to resist torque developed by the gearbox. In other words, it prevents counter rotation of a shaft mounted speed reducer during operation of the application. This torque arm fits the Swift front hub motor (Bafang G571.250.D) perfectly, replacing 1 of the anti-turn washers to provide increased rotational resistance to the dropout. It can also be used on any hub motor with a 12mm axle (machined to 10mm on the flats). 4.5mm thick 304 stainless steel, laser cut, Includes all hardware, and both an eyelet mount and hose clamp fork blade or seatstay mount.
Screw Shaft Types
If you’re looking for a screw shaft, but aren’t sure which type to buy, you’re in luck. In this article, we’ll talk about the different types, including Threaded shank, Round head, and Machined. Once you’ve read it, you’ll know which type to buy. Then, you can decide whether you want a ball screw nut or a threaded shank.
Machined screw shafts
Besides the standard stainless steel shaft, manufacturers also provide a variety of other materials, such as titanium, bronze, and brass. In addition to stainless steel, manufacturers also provide a variety of top-coating options, including zinc, brass, and chromium. Aluminum screws are not particularly durable and are easily affected by weather. Most screw shafts feature self-locking mechanisms. They are especially useful in C-clamps, vises, and screw-top container lids.
For applications where accuracy is vital, a ball screw shaft needs to be annealed. A heat treatment can be performed on the ball screw shaft to ensure that both ends are heated evenly. In this process, the shaft will be more durable, while maintaining its high-precision properties. These screw shafts are a key component in computer-controlled motion-control systems, wire bonding, and other industries that require high-precision and high-quality performance.
Depending on the material used, screw shafts can be made of stainless steel or titanium. High-precision CNC machines and lathes are typically used to manufacture screw shafts. Various shapes and sizes are available, each with a specific application. Whether you need a small or large screw, you can find 1 to fit your needs. And since each size requires a different material, your choice of material is important as well.
In general, the materials used for machining screw shafts are steel, stainless steel, titanium, brass, bronze, and aluminum. Metals that resist corrosion are also commonly used. Other materials for screw shafts are Teflon, nylon, and nylon. You can also find threaded screw shafts in materials such as porcelain, glass, and ceramic. If you want to use your screws in a unique material, consider purchasing a customized one.
Ball screw nuts
If you have a screw shaft, the last thing you want to worry about is the ball nut slipping off. To prevent this, you can place a temporary stop in the shaft’s grooves to ensure that the ball nut does not slide off. When you remove the stop, you can then install the ball screw nut. But, before you can install the ball screw nut, you have to make sure that you have a good grip on the shaft.
When selecting ball screw nuts, it’s important to consider how much preload you need to apply to avoid excessive backlash. Preloading eliminates this problem by making the ball nut compact. It also prevents backlash, which is lost motion caused by clearance between the ball and nut. Backlash disrupts repeatability and accuracy. This is where spacer preloading comes in. You can insert a spacer between the 2 ball nuts to transmit the force to the nut. However, you should keep in mind that this method reduces the load capacity of the ball screw.
The critical speed of a screw is the maximum rotating speed before it whips. This critical speed is influenced by several factors, including the diameter of the screw shaft, the number of support elements, and the material. By adjusting these factors, you can reduce the number of components used and the amount of time it takes to assemble the screw shaft. In addition, you can also reduce the number of components and avoid stacking tolerances. However, the critical speed of plastic nuts is limited due to sliding friction.
The ball screw nut has several characteristics that make it unique. Its most prominent feature is the presence of ball bearings. These balls help reduce friction between the screw nut and the shaft. Without ball bearings, the friction would be too high to function properly. Another important characteristic is the groove profile of the nut and ball. These 2 features ensure that the ball and the nut meet at 2 points. You’ll be amazed by the results of the work of these ball screw nuts.
Threaded shank
Wood screws are usually not fully threaded because the shank has an unthreaded portion at the top. This shoulder part forces the screw to compress 2 pieces of wood, which prevents the screw from overheating and compromising the materials strength. As the screw is threaded partially up, it is not as difficult to remove as a fully threaded screw. However, it is important to note that a wood screw will not hold as tightly as 1 with a fully threaded shank.
In addition to being universal, screw threads can be of different sizes. For example, a M8 screw has a thread pitch of 1.25 mm. To avoid confusion, screw thread pitches are commonly given with a multiplication sign. For example, M8x1 means that the screw is 8 mm in diameter but has a thread pitch of 1 mm per 360-degree rotation. Those who are not familiar with these dimensions may find it confusing.
The OD of the threaded portion of a bolt is generally smaller than the OD of the nut. If the shank is too deep for the nut to fit, the threads may bottom out. This is why it’s important to use a thread-cutting bit with a small thread diameter. You can use a micrometer or caliper to measure the thread diameter. This tool will also allow you to easily identify which screw size fits where and how well.
The metric system is the most widely used. Fasteners with DIN numbers are generally metric in size. This makes them very useful for industrial settings. You can find metric-sized screws anywhere, as long as you buy them from a reputable manufacturer. These fasteners also come with a dog point, which is used for safety wire. If the screw needs to be replaced, the shank can be drilled with a hole for a safety wire or for a dog-point.
Round head
A round head screw is the most common type used for machine screws. Other common types include truss head, flat head, and hexed head. Each has a different profile and are used for different purposes. A round head screw is typically wider than a flat or a hexed head, and has a slightly rounded surface. These screws are useful for projects involving sheet metal or sheet-metal parts. Round heads are usually slightly wider than a hex head screw, and they may also be used as a substitute for washers in certain applications. However, truss heads are not necessary for every project.
A wood screw has a smooth shank that protrudes above the surface of the material it is attaching. A metal screw has a threaded shaft that is fully threaded from head to point, and a fully threaded shaft provides more bite. Two common head styles are round head and pan head. If the task requires the screw to be flush or countersunk, the round head will be the best choice.
Another type is the Reed & Prince screw drive. These are similar to Phillips screws but have a 75-degree V shape. They are commonly used in marine hardware and are also known as BNAE NFL22-070. This type is also used for steel plate hangers. In addition to round head and pan head screws, there are a variety of other screw types. You can even get a head with a slotted head if you know where to look.
Screw diameters are specified according to the ISO 261 or ISO 262 standards. An M8 screw has a diameter of 8.25 mm. The M8 screw has a pitch of 1.25 mm, which is equivalent to 1 mm per 360 degrees. There are several other standard screw sizes and thread diameters available. You can find them all by consulting the relevant standards. But remember, the metric system is the most popular.
Self-locking mechanism
A self-locking mechanism for a screw shaft is a device that secures the screw to its supporting member in a failure position. The locking mechanism provides a positive connection between the screw shaft and the control surface during normal operation, and locks the screw to its supporting member when the screw fails. Previous attempts to solve this problem have typically used secondary nuts with free play on the screw, which were intentionally designed to jam when loaded. However, such a device can be unreliable, which is why the present invention offers a more robust and reliable locking mechanism.
The self-locking function of a screw depends on several factors, including its pitch angle and the coefficient of friction of the threads. The angle of friction must be less than the tangent of the material pairing to prevent untightening of the screw. Screws with self-locking mechanisms have an efficiency e lower than 50%, which is less than half. Self-locking screws also have the benefit of being less efficient than a standard screw.
Unlike a normal screw, a self-locking screw can be turned in either direction. The nut 22 rotates with the screw shaft, and the member 23 is translated in an axial direction. Regardless of the direction of the rotation of the screw, this axial translation will result in the opposite moment to that input moment. While screw self-locking mechanisms are typically less expensive, they are more reliable and durable.
Another important feature of self-locking screws is that they are not susceptible to independent loosening. The screw cannot rotate without a certain amount of torque. In addition, a self-locking screw shaft must have a small wedge with a smaller half-angle than the arctangent of the static friction. This means that the torque applied by the driver must be greater than the torque needed to overcome the friction.
China wholesaler Extruder Screw Segment Extrusion Screw near me supplier
Product Description
Quick Details
Product Name:Twin Screw Extruder Parts Screw Elements for TSE Machine
Material: W6MO5CR4V2
Color: Metal
Exprience:20 years
Packaging: Wooden Box or Paper Box According to your order
Lead Time: 5-60 days
Product Description
Screw elements are the main working parts for twin screw extruder which determined the quality and output of plastic products.With high quality,the screw elements assure plastic molecular mixing,cutting,spreading as well as reacting among themselves etc.Extremely high self cleaning performance assure the high quality of the whole production line,for this,our company combiend our experience for years,the merits about foreign countries and the customer’s use,then take them into action,designed all kinds of suitable processing screw element with reasonable parameters,high self cleaning performance,wear resistance,corrosion-resistance.
We can satisfy your different material needs:
According to appearance design,
According to Materical
-For wear application:
Tool Steel:W6Mo5Cr4V2
PM-HIP material:WR5,WR13,WR14,CPM10V,CPM9V.
-For corrosion application:
38CrMoAla
PM-HIP material:WR4,WR13,WR14,CPM10V,CPM9V.
-For wear and corrosion application:
PM-HIP material:WR13,WR14,CPM10V,CPM9V.
-Other materials:
Stainless Steel:316L,440C etc.
Through the understanding of customers,recommend the most valuable material.
Tool Steel
| W6Mo5Cr4V2 Chemical Composition | |||||||||||
| C | SI | Mn | P | S | Cr | Mo | V | W | Cu | Ni | |
| W-% | 0.88 | 0.35 | 0.3 | 0.571 | 0.003 | 4.03 | 4.81 | 1.86 | 5.95 | 0.12 | 0.24 |
Key Features:
1) Tool steel, the steel has a high hardenability and thermal cracking resistance, the steel contains a higher content of tungsten,molybdenum,chromium and alum, good wear resistance, toughness is relatively weakened, with good heat resistance.
2) High hardness,Hardenallity HRC up to 65.
Co-rotating Twin Screw Elements for:
-W&P:ZSK-MC
-Theysohn:TSK
-SM:TEK-HS
-Labtech:LTE
-Berstorff:ZE
-Maris:TM-W
-Feddem:FED-MTS
-Leistritz:ZSE/LSB
-APV:MP65
-JSW-TEX
-TOSHLBA:TEM
-KEYA,RuiYA,LANTAI,Umm-N
Production Process
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NO.1
Workblank
Select high-quality raw materials
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NO.2
Piecewise According to the drawing section length
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NO.3
Hit bottom hole Rough machining the bottom hole,and then pull spline
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NO.4
Machining thread Professional high-end processing equipment,rough machining threads
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NO.5
Finish machining thread
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NO.6
Threading grinding Further control of tolerance
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Packing&Delivery
Packing Details: According to your order quantity packaging,shipping wooden boxes,air carton.
Delivery Details: 5-60days after order.
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1.Rust-proof oil processing, Prevent rust in transit. |
2.Oiled paper packages, Prevent oil dry. |
3.Bubble wrap package, Prevent collosions. |
| 4.Special foam packaging. | 5.Packing | 6.Sealing |
Our Service
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24-hour Hotline
No matter when and where to call we can find our service to you.
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Pre-sales Consultation
We have 5 sales people online, and whether you have any question can be solved through online communication,welcome your consultation. |
After-sales Services
Receive products have any questions about the product, can look for us,we will help you deal with the the first time,to your satisfaction. |
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All ZT keep pay attention to every step of the details,We are looking forward to the forge ahead together with you!
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FAQ
How long does it take to get my products since I paid for them?
—According to yout order quantity,we will give you a reasonable delivery date.
Can I get the warranty of 1 year for free?
—If you need the warranty,you should pay for it.If not,do not worry ,we have confidence in our products.
How is your after-sale service?
—You will get our help in time as long as you find something wrong about our produces.Believe us,you deserve the best.
What machine does the product apply to?
—Twin Screw Extruder Machine.
The Four Basic Components of a Screw Shaft
There are 4 basic components of a screw shaft: the Head, the Thread angle, and the Threaded shank. These components determine the length, shape, and quality of a screw. Understanding how these components work together can make purchasing screws easier. This article will cover these important factors and more. Once you know these, you can select the right type of screw for your project. If you need help choosing the correct type of screw, contact a qualified screw dealer.
Thread angle
The angle of a thread on a screw shaft is the difference between the 2 sides of the thread. Threads that are unified have a 60 degree angle. Screws have 2 parts: a major diameter, also known as the screw’s outside diameter, and a minor diameter, or the screw’s root diameter. A screw or nut has a major diameter and a minor diameter. Each has its own angle, but they all have 1 thing in common – the angle of thread is measured perpendicularly to the screw’s axis.
The pitch of a screw depends on the helix angle of the thread. In a single-start screw, the lead is equal to the pitch, and the thread angle of a multiple-start screw is based on the number of starts. Alternatively, you can use a square-threaded screw. Its square thread minimizes the contact surface between the nut and the screw, which improves efficiency and performance. A square thread requires fewer motors to transfer the same load, making it a good choice for heavy-duty applications.
A screw thread has 4 components. First, there is the pitch. This is the distance between the top and bottom surface of a nut. This is the distance the thread travels in a full revolution of the screw. Next, there is the pitch surface, which is the imaginary cylinder formed by the average of the crest and root height of each tooth. Next, there is the pitch angle, which is the angle between the pitch surface and the gear axis.
Head
There are 3 types of head for screws: flat, round, and hexagonal. They are used in industrial applications and have a flat outer face and a conical interior. Some varieties have a tamper-resistant pin in the head. These are usually used in the fabrication of bicycle parts. Some are lightweight, and can be easily carried from 1 place to another. This article will explain what each type of head is used for, and how to choose the right 1 for your screw.
The major diameter is the largest diameter of the thread. This is the distance between the crest and the root of the thread. The minor diameter is the smaller diameter and is the distance between the major and minor diameters. The minor diameter is half the major diameter. The major diameter is the upper surface of the thread. The minor diameter corresponds to the lower extreme of the thread. The thread angle is proportional to the distance between the major and minor diameters.
Lead screws are a more affordable option. They are easier to manufacture and less expensive than ball screws. They are also more efficient in vertical applications and low-speed operations. Some types of lead screws are also self-locking, and have a high coefficient of friction. Lead screws also have fewer parts. These types of screw shafts are available in various sizes and shapes. If you’re wondering which type of head of screw shaft to buy, this article is for you.
Threaded shank
Wood screws are made up of 2 parts: the head and the shank. The shank is not threaded all the way up. It is only partially threaded and contains the drive. This makes them less likely to overheat. Heads on wood screws include Oval, Round, Hex, Modified Truss, and Flat. Some of these are considered the “top” of the screw.
Screws come in many sizes and thread pitches. An M8 screw has a 1.25-mm thread pitch. The pitch indicates the distance between 2 identical threads. A pitch of 1 is greater than the other. The other is smaller and coarse. In most cases, the pitch of a screw is indicated by the letter M followed by the diameter in millimetres. Unless otherwise stated, the pitch of a screw is greater than its diameter.
Generally, the shank diameter is smaller than the head diameter. A nut with a drilled shank is commonly used. Moreover, a cotter pin nut is similar to a castle nut. Internal threads are usually created using a special tap for very hard metals. This tap must be followed by a regular tap. Slotted machine screws are usually sold packaged with nuts. Lastly, studs are often used in automotive and machine applications.
In general, screws with a metric thread are more difficult to install and remove. Fortunately, there are many different types of screw threads, which make replacing screws a breeze. In addition to these different sizes, many of these screws have safety wire holes to keep them from falling. These are just some of the differences between threaded screw and non-threaded. There are many different types of screw threads, and choosing the right 1 will depend on your needs and your budget.
Point
There are 3 types of screw heads with points: cone, oval, and half-dog. Each point is designed for a particular application, which determines its shape and tip. For screw applications, cone, oval, and half-dog points are common. Full dog points are not common, and they are available in a limited number of sizes and lengths. According to ASTM standards, point penetration contributes as much as 15% of the total holding power of the screw, but a cone-shaped point may be more preferred in some circumstances.
There are several types of set screws, each with its own advantage. Flat-head screws reduce indentation and frequent adjustment. Dog-point screws help maintain a secure grip by securing the collar to the screw shaft. Cup-point set screws, on the other hand, provide a slip-resistant connection. The diameter of a cup-point screw is usually half of its shaft diameter. If the screw is too small, it may slack and cause the screw collar to slip.
The UNF series has a larger area for tensile stress than coarse threads and is less prone to stripping. It’s used for external threads, limited engagement, and thinner walls. When using a UNF, always use a standard tap before a specialized tap. For example, a screw with a UNF point is the same size as a type C screw but with a shorter length.
Spacer
A spacer is an insulating material that sits between 2 parts and centers the shaft of a screw or other fastener. Spacers come in different sizes and shapes. Some of them are made of Teflon, which is thin and has a low coefficient of friction. Other materials used for spacers include steel, which is durable and works well in many applications. Plastic spacers are available in various thicknesses, ranging from 4.6 to 8 mm. They’re suitable for mounting gears and other items that require less contact surface.
These devices are used for precision fastening applications and are essential fastener accessories. They create clearance gaps between the 2 joined surfaces or components and enable the screw or bolt to be torqued correctly. Here’s a quick guide to help you choose the right spacer for the job. There are many different spacers available, and you should never be without one. All you need is a little research and common sense. And once you’re satisfied with your purchase, you can make a more informed decision.
A spacer is a component that allows the components to be spaced appropriately along a screw shaft. This tool is used to keep space between 2 objects, such as the spinning wheel and an adjacent metal structure. It also helps ensure that a competition game piece doesn’t rub against an adjacent metal structure. In addition to its common use, spacers can be used in many different situations. The next time you need a spacer, remember to check that the hole in your screw is threaded.
Nut
A nut is a simple device used to secure a screw shaft. The nut is fixed on each end of the screw shaft and rotates along its length. The nut is rotated by a motor, usually a stepper motor, which uses beam coupling to accommodate misalignments in the high-speed movement of the screw. Nuts are used to secure screw shafts to machined parts, and also to mount bearings on adapter sleeves and withdrawal sleeves.
There are several types of nut for screw shafts. Some have radial anti-backlash properties, which prevent unwanted radial clearances. In addition, they are designed to compensate for thread wear. Several nut styles are available, including anti-backlash radial nuts, which have a spring that pushes down on the nut’s flexible fingers. Axial anti-backlash nuts also provide thread-locking properties.
To install a ball nut, you must first align the tangs of the ball and nut. Then, you must place the adjusting nut on the shaft and tighten it against the spacer and spring washer. Then, you need to lubricate the threads, the ball grooves, and the spring washers. Once you’ve installed the nut, you can now install the ball screw assembly.
A nut for screw shaft can be made with either a ball or a socket. These types differ from hex nuts in that they don’t need end support bearings, and are rigidly mounted at the ends. These screws can also have internal cooling mechanisms to improve rigidity. In this way, they are easier to tension than rotating screws. You can also buy hollow stationary screws for rotator nut assemblies. This type is great for applications requiring high heat and wide temperature changes, but you should be sure to follow the manufacturer’s instructions.