Product Description
Recycling PET bottles Plastic twin screw Extruder machine price
Product model for your choosing:
(Notes: Different raw materials, the output is different, please tell me what’s the material you want to produce, I will recommend you the correct model.)
| Type | TSH-20 | TSH-35 | TSH40 | TSH52 | TSH65 | TSH75 | TSH95 |
| Screw Diameter (mm) product-list-1.html | 22 | 35.6 | 41 | 51.4 | 62.4 | 71 | 93 |
| Screw Speed (rpm) | 600 | 600 | 600 | 600 | 600 | 600 | 600 |
| Motor Power (kW) product-list-1.html | 4 | 18.5 | 30 | 55 | 90 | 132 | 315 |
| L/D | 32-60 | 32-68 | 32-68 | 32-68 | 32-68 | 32-68 | 32-68 |
| Output (Kg/h) | 2-15 | 15-95 | 70-120 | 155-255 | 255-400 | 450-750 | 950-1600 |
Product details:
1. Twin screw main extruder: Main motor: Imported “WEG”or “SIEMENS” Variable frequency motor(The frequency converter will automatically change the frequency to reduce the frequency of the motor. The operating current will always run between 80%, 50%, and 30% of the rated power. This will greatly reduce the motor’s operating current and achieve the effect of saving electricity).
2. Gearbox: Warranty: 3 years; (2)Concentricity deviation of output shaft and input shaft: within 0.2mm; (3)Both output shaft radial bearings are imported “IKO”and “NSK” bearings;
3. Electric cabinet box: (1)Inverter: Imported Switzerland”ABB”, Japan”TOSHIBA”,”FUJI”; (2)PLC: Imported “SIEMENS” brand; (3)Main electrical controller:”Schneider” brand; (4)Display of electric current:Japan “OMRON” brand; (5)Temperature instruments: Japan “OMRON” brand;
4. Twin-screw Barrel
Bimetal wear-resistant and corrosion-resistant material, the base material is 45# steel, after multiple forging, quenching and tempering treatment; the cylinder is inlaid with α-101 wear-resistant and corrosion-resistant alloy bushing, which has better wear resistance and corrosion resistance than general alloy bushings.
5. Screw elements
(1)Material is W6Mo5Cr4V2 (high speed tool steel) with the best wear resistance, the whole adopts vacuum quenching treatment, hardness is 60 ~ 62HRC; (2)Designed by the building block principle, and the screw element and the screw shaft are connected by an involute spline, and the screw combination can be adjusted according to the process requirements; The screw elements are all made by CNC machining center, with good identity and strong process repeat-ability,which is benefit for changing;
6. Screen changer+Die-head: Quick open die-head, convenient and fast, short flow path of the machine head and less material storage can significantly reduce the
deterioration of the material’s physical properties, yellowing, black spots
Machine applications:
(Notes: Our machine can be applied in the production of different plastics, such as color masterbatch, filler masterbatch, engineering plastics, reinforced materials, recycling plastics, biodegradable materials and so on.)
Our certificates:
Tengda has obtained High-tech Enterprise and National High-tech Enterprise award.
We have passed ISO,TUV,CE Certifications, more than 30 patents.
Our customers:
Related products:
product-list-1.html
| After-sales Service: | 7*24 Hours Online Service |
|---|---|
| Warranty: | Gearbox: 3 Years; Extruder: 1 Year |
| Raw Material: | PP PE Ect. High Filler Masterbatch |
| Screw: | Double-Screw |
| Inverter: | Inverter |
| Electromagnetic Heater: | Without Electromagnetic Heater |
| Samples: |
US$ 50/Set
1 Set(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Screw Shaft Types
A screw shaft is a cylindrical part that turns. Depending on its size, it is able to drive many different types of devices. The following information outlines the different types of screws, including their sizes, material, function, and applications. To help you select the right screw shaft, consider the following factors:
Size
A screw can come in a variety of shapes and sizes, ranging from a quarter to a quarter-inch in diameter. A screw is a cylindrical shaft with an inclined plane wrapped around it, and its main function is to fasten objects together by translating torque into a linear force. This article will discuss the dimensions of screws and how to determine the size of a screw. It is important to note that screw sizes can be large and small depending on the purpose.
The diameter of a screw is the diameter of its shaft, and it must match the inner diameter of its nuts and washers. Screws of a certain diameter are also called machine screws, and they can be larger or smaller. Screw diameters are measured on the shaft underneath the screw head. The American Society of Mechanical Engineers (ASME) standardized screw diameters in 3/50-inch to 16 (3/8-inch) inches, and more recently, sizes were added in U.S. fractions of an inch. While shaft and head diameters are standardized, screw length may vary from job to job.
In the case of the 2.3-mm screw group, the construct strength was not improved by the 1.2-mm group. The smaller screw size did not increase the strength of the construct. Further, ABS material did not improve the construct strength. Thus, the size of screw shaft is an important consideration in model design. And remember that the more complex your model is, the larger it will be. A screw of a given size will have a similar failure rate as a screw of a different diameter.
Although different screw sizes are widely used, the differences in screw size were not statistically significant. Although there are some limitations, screws of different sizes are generally sufficient for fixation of a metacarpal shaft fracture. However, further clinical studies are needed to compare screw sizes for fracture union rates. So, if you are unsure of what size of screw shaft you need for your case, make sure to check the metric chart and ensure you use the right one.
Material
The material of a screw shaft plays an important role in the overall performance of a screw. Axial and central forces act to apply torque to the screw, while external forces, such as friction, exert a bending moment. The torsional moments are reflected in the torque, and this causes the screw to rotate at a higher rate than necessary. To ensure the longevity of the screw, the material of the screw shaft should be able to handle the bending moment, while the diameter of the shaft should be small enough to avoid causing damage.
Screws are made from different metals, such as steel, brass, titanium, and bronze. Manufacturers often apply a top coating of chromium, brass, or zinc to improve corrosion resistance. Screws made of aluminum are not durable and are prone to rusting due to exposure to weather conditions. The majority of screw shafts are self-locking. They are suited for many applications, including threaded fasteners, C-clamps, and vises.
Screws that are fabricated with conical sections typically feature reduced open cross-sectional areas at the discharge point. This is a key design parameter of conical screw shafts. In fact, reductions of up to 72% are common across a variety of applications. If the screw is designed to have a hard-iron hanger bearing, it must be hardened. If the screw shaft is not hardened, it will require an additional lubricant.
Another consideration is the threads. Screw shafts are typically made of high-precision threads and ridges. These are manufactured on lathes and CNC machines. Different shapes require different materials. Materials for the screw shaft vary. There are many different sizes and shapes available, and each one has its own application. In addition to helical and conical screw shafts, different materials are also available. When choosing material, the best one depends on the application.
The life of the screw depends on its size, load, and design. In general, the material of the screw shaft, nut body, and balls and rollers determine its fatigue life. This affects the overall life of the screw. To determine whether a specific screw has a longer or shorter life, the manufacturer must consider these factors, as well as the application requirements. The material should be clean and free of imperfections. It should be smooth and free of cracks or flaking, which may result in premature failure.
Function
The function of a screw shaft is to facilitate the rotation of a screw. Screws have several thread forms, including single-start, double-start and multi-start. Each form has its own advantages and disadvantages. In this article we’ll explore each of them in detail. The function of a screw shaft can vary based on its design, but the following are common types. Here are some examples of screw shaft types and their purposes.
The screw’s torque enables it to lift objects. It can be used in conjunction with a bolt and nut to lift a load. Screws are also used to secure objects together. You can use them in screw presses, vises, and screw jacks. But their primary function is to hold objects together. Listed below are some of their main functions. When used to lift heavy loads, they can provide the required force to secure an object.
Screws can be classified into two types: square and round. Square threads are more efficient than round ones because they apply 0deg of angle to the nut. Square threads are also stronger than round threads and are often used in high-load applications. They’re generally cheaper to manufacture and are more difficult to break. And unlike square threads, which have a 0deg thread angle, these threads can’t be broken easily with a screwdriver.
A screw’s head is made of a series of spiral-like structures that extend from a cylindrical part to a tip. This portion of the screw is called the shank and is made of the smallest area. The shank is the portion that applies more force to the object. As the shaft extends from the head, it becomes thinner and narrow, forming a pointed tip. The head is the most important part of the screw, so it needs to be strong to perform its function.
The diameter of the screw shaft is measured in millimeters. The M8 screw has a thread pitch of 1.25 mm. Generally, the size of the screw shaft is indicated by the major and minor diameter. These dimensions are appended with a multiplication sign (M8x1).
Applications
The design of screws, including their size and shape, determines their critical rotating speeds. These speeds depend on the threaded part of the screw, the helix angle, and the geometry of the contact surfaces. When applied to a screw, these limits are referred to as “permissible speed limits.” These maximum speeds are meant for short periods of time and optimized running conditions. Continuous operation at these speeds can reduce the calculated life of a nut mechanism.
The main materials used to manufacture screws and screw shafts include steel, stainless steel, titanium, bronze, and brass. Screws may be coated for corrosion resistance, or they may be made of aluminium. Some materials can be threaded, including Teflon and nylon. Screw threads can even be molded into glass or porcelain. For the most part, steel and stainless steel are the most common materials for screw shafts. Depending on the purpose, a screw will be made of a material that is suitable for the application.
In addition to being used in fasteners, screw shafts are used in micrometers, drillers, conveyor belts, and helicopter blades. There are numerous applications of screw shafts, from weighing scales to measuring lengths. If you’re in the market for a screw, make sure to check out these applications. You’ll be happy you did! They can help you get the job done faster. So, don’t delay your next project.
If you’re interested in learning about screw sizing, then it’s important to know the axial and moment loads that your screws will experience. By following the laws of mechanics and knowing the load you can calculate the nominal life of your screw. You can also consider the effect of misalignment, uneven loading, and shocks on your screw. These will all affect the life of your screw. Then, you can select the right screw.
editor by CX 2023-11-22
China EPS Polystyrene Recycling Foam Cold-press Machine Cold Press Block Machine screw blade shaft
Condition: New
Processing Type: Foaming Machine, crushing then compressing
Machine Type: EPS foam recycling compressor
Voltage: 380V 50HZ, 380V 50Hz or customized
Dimension(L*W*H): 2.9*1*2.5
Power (kW): 11
Weight (KG): 1200 KG
Warranty: 1 Year
Key Selling Points: Automatic
Showroom Location: Egypt, Turkey, Viet Nam, Philippines, Brazil, Peru, Saudi Arabia, Indonesia, Pakistan, India, Mexico, Russia, Spain, Thailand, Morocco, Kenya, Argentina, South Korea, Chile, UAE, Colombia, Algeria, Sri Lanka, Romania, Bangladesh, South Africa, Kazakhstan, Ukraine, ebay hot selling agricultural tractor spare parts Kyrgyzstan, Nigeria, Uzbekistan, Tajikistan, Japan, Malaysia, Australia
Applicable Industries: Manufacturing Plant
Machinery Test Report: Provided
Video outgoing-inspection: Not Available
Warranty of core components: 1 Year
Core Components: Bearing, Motor, Gearbox
Name: EPS foam recycling compressor
Treating material: EPS EPE EPP XPS foamed material
Compressing mode: screw compressing
Control System: PLC
Power: 7.5/11/15KW
Crushing shaft: 2 shaft or 4 shaft
Brand: Greenlandplast
MOQ: 1 Set
Marketing Type: New Product 2571
Packaging Details: standard exporting packing
Port: ZheJiang
Product Overview Greenlandplast EPS Styrofoam Polystyrene Recycling Machine The EPS foam compressor generates a pressure-compressed force to compress foam by the screw spiral rotation,then make the foam scrap into an EPS foam compression blocks. Our Greenland brand foam compressor machines, can reach max up to 50 times compression ratio, greatly reduce the storage and transportation costs of EPS foam, are good choice for EPS foam recycling. Benefits:1:Uniqued designed screw compression technology ,max compression ratio reach 50:12:Adopt mechanical cold compression way, environmental, safe, no fumes, lower power consumption;3:Siemens PLC Control System ,makes the operation be easy and convenient4:All parts are Siemens, Schneider .,etc international brands ,quality realiable & durable.5:Suitable for different types and condtions EPS,XPS ,EPP,widely used FEATURES AT A GLANCE PRODUCT SPECIFICATIONS
| Model | GL-CP-50 | GL-CP-100 | GL-CP-200 | GL-CP-300 |
| Capacity | 50kg/h | 100kg/h | 200kg/h | 300kg/h |
| Screw diameter | Φ138mm | Φ290mm | Φ350mm | Φ china bearing CZPT high quality deep groove ball bearing 410mm |
| Inlet size | 615mmx500mm | 1000mmx600mm | 1000mmx600mm | 1500mmx600mm |
| Screw rotation speed | 30rpm | 36rpm | 36rpm | 36rpm |
| Crusher blade quantity | 10pcs | 2 crushing shafts 9&10pcs | 4 crushing shafts 10&11&10&11pcs | 4 crushing shafts 10&11&10&11pcs |
| Crusher rotation speed | 100rpm | 120rpm | 120rpm | 120rpm |
| Main motor | 3kw | 7.5 kw | 11kw | 15kw |
| Crusher motor | 1.1kw | 2.2kw X 2pcs | 2.2kw X 4pcs | 2.2kw X 4pcs |
| 1.5 kw | 1.5kw | 2.2kw | ||
| EPS Block size | 100×100mm | 250×250mm | 380x380mm | 380x380mm |
| Diemension | 1200x1000x1400mm | 3000×1300×2100mm | 4800x1500x2500mm | 4960x4480x4430mm |
| Weight | 850kg | 1400Kg | 1800kg | 2600kg |
Types of Screw Shafts
Screw shafts come in various types and sizes. These types include fully threaded, Lead, and Acme screws. Let’s explore these types in more detail. What type of screw shaft do you need? Which one is the best choice for your project? Here are some tips to choose the right screw:
Machined screw shaft
The screw shaft is a basic piece of machinery, but it can be further customized depending on the needs of the customer. Its features include high-precision threads and ridges. Machined screw shafts are generally manufactured using high-precision CNC machines or lathes. The types of screw shafts available vary in shape, size, and material. Different materials are suitable for different applications. This article will provide you with some examples of different types of screw shafts.
Ball screws are used for a variety of applications, including mounting machines, liquid crystal devices, measuring devices, and food and medical equipment. Various shapes are available, including miniature ball screws and nut brackets. They are also available without keyway. These components form a high-accuracy feed mechanism. Machined screw shafts are also available with various types of threaded ends for ease of assembly. The screw shaft is an integral part of linear motion systems.
When you need a machined screw shaft, you need to know the size of the threads. For smaller machine screws, you will need a mating part. For smaller screw sizes, the numbers will be denominated as industry Numeric Sizes. These denominations are not metric, but rather in mm, and they may not have a threads-per-inch designation. Similarly, larger machine screws will usually have threads that have a higher pitch than those with a lower pitch.
Another important feature of machine screws is that they have a thread on the entire shaft, unlike their normal counterparts. These machine screws have finer threads and are intended to be screwed into existing tapped holes using a nut. This means that these screws are generally stronger than other fasteners. They are usually used to hold together electronic components, industrial equipment, and engines. In addition to this, machine screws are usually made of a variety of materials.
Acme screw
An Acme screw is the most common type of threaded shaft available. It is available in a variety of materials including stainless steel and carbon steel. In many applications, it is used for large plates in crushing processes. ACME screws are self-locking and are ideal for applications requiring high clamping force and low friction. They also feature a variety of standard thread forms, including knurling and rolled worms.
Acme screws are available in a wide range of sizes, from 1/8″ to 6″. The diameter is measured from the outside of the screw to the bottom of the thread. The pitch is equal to the lead in a single start screw. The lead is equal to the pitch plus the number of starts. A screw of either type has a standard pitch and a lead. Acme screws are manufactured to be accurate and durable. They are also widely available in a wide range of materials and can be customized to fit your needs.
Another type of Acme screw is the ball screw. These have no back drive and are widely used in many applications. Aside from being lightweight, they are also able to move at faster speeds. A ball screw is similar to an Acme screw, but has a different shape. A ball screw is usually longer than an Acme screw. The ball screw is used for applications that require high linear speeds. An Acme screw is a common choice for many industries.
There are many factors that affect the speed and resolution of linear motion systems. For example, the nut position and the distance the screw travels can all affect the resolution. The total length of travel, the speed, and the duty cycle are all important. The lead size will affect the maximum linear speed and force output. If the screw is long, the greater the lead size, the higher the resolution. If the lead length is short, this may not be the most efficient option.
Lead screw
A lead screw is a threaded mechanical device. A lead screw consists of a cylindrical shaft, which includes a shallow thread portion and a tightly wound spring wire. This spring wire forms smooth, hard-spaced thread convolutions and provides wear-resistant engagement with the nut member. The wire’s leading and trailing ends are anchored to the shaft by means appropriate to the shaft’s composition. The screw is preferably made of stainless steel.
When selecting a lead screw, one should first determine its critical speed. The critical speed is the maximum rotations per minute based on the natural frequency of the screw. Excessive backlash will damage the lead screw. The maximum number of revolutions per minute depends on the screw’s minor diameter, length, assembly alignment, and end fixity. Ideally, the critical speed is 80% of its evaluated critical speed. A critical speed is not exceeded because excessive backlash would damage the lead screw and may be detrimental to the screw’s performance.
The PV curve defines the safe operating limits of a lead screw. This relationship describes the inverse relationship between contact surface pressure and sliding velocity. As the PV value increases, a lower rotation speed is required for heavier axial loads. Moreover, PV is affected by material and lubrication conditions. Besides, end fixity, which refers to the way the lead screw is supported, also affects its critical speed. Fixed-fixed and free end fixity are both possible.
Lead screws are widely used in industries and everyday appliances. In fact, they are used in robotics, lifting equipment, and industrial machinery. High-precision lead screws are widely used in the fields of engraving, fluid handling, data storage, and rapid prototyping. Moreover, they are also used in 3D printing and rapid prototyping. Lastly, lead screws are used in a wide range of applications, from measuring to assembly.
Fully threaded screw
A fully threaded screw shaft can be found in many applications. Threading is an important feature of screw systems and components. Screws with threaded shafts are often used to fix pieces of machinery together. Having fully threaded screw shafts ensures that screws can be installed without removing the nut or shaft. There are two major types of screw threads: coarse and fine. When it comes to coarse threads, UTS is the most common type, followed by BSP.
In the 1840s, a British engineer named Joseph Whitworth created a design that was widely used for screw threads. This design later became the British Standard Whitworth. This standard was used for screw threads in the United States during the 1840s and 1860s. But as screw threads evolved and international standards were established, this system remained largely unaltered. A new design proposed in 1864 by William Sellers improved upon Whitworth’s screw threads and simplified the pitch and surface finish.
Another reason for using fully threaded screws is their ability to reduce heat. When screw shafts are partially threaded, the bone grows up to the screw shaft and causes the cavity to be too narrow to remove it. Consequently, the screw is not capable of backing out. Therefore, fully threaded screws are the preferred choice for inter-fragmentary compression in children’s fractures. However, surgeons should know the potential complication when removing metalwork.
The full thread depth of a fully threaded screw is the distance at which a male thread can freely thread into the shaft. This dimension is typically one millimeter shy of the total depth of the drilled hole. This provides space for tap lead and chips. The full-thread depth also makes fully threaded screws ideal for axially-loaded connections. It is also suitable for retrofitting applications. For example, fully threaded screws are commonly used to connect two elements.
Ball screw
The basic static load rating of a ball screw is determined by the product of the maximum axial static load and the safety factor “s0”. This factor is determined by past experience in similar applications and should be selected according to the design requirements of the application. The basic static load rating is a good guideline for selecting a ball screw. There are several advantages to using a ball screw for a particular application. The following are some of the most common factors to consider when selecting a ball screw.
The critical speed limit of a ball screw is dependent on several factors. First of all, the critical speed depends on the mass, length and diameter of the shaft. Second, the deflection of the shaft and the type of end bearings determine the critical speed. Finally, the unsupported length is determined by the distance between the ball nut and end screw, which is also the distance between bearings. Generally, a ball screw with a diameter greater than 1.2 mm has a critical speed limit of 200 rpm.
The first step in manufacturing a high-quality ball screw is the choice of the right steel. While the steel used for manufacturing a ball screw has many advantages, its inherent quality is often compromised by microscopic inclusions. These microscopic inclusions may eventually lead to crack propagation, surface fatigue, and other problems. Fortunately, the technology used in steel production has advanced, making it possible to reduce the inclusion size to a minimum. However, higher-quality steels can be expensive. The best material for a ball screw is vacuum-degassed pure alloy steel.
The lead of a ball screw shaft is also an important factor to consider. The lead is the linear distance between the ball and the screw shaft. The lead can increase the amount of space between the balls and the screws. In turn, the lead increases the speed of a screw. If the lead of a ball screw is increased, it may increase its accuracy. If not, the lead of a ball screw can be improved through preloading, lubrication, and better mounting accuracy.
editor by czh 2023-07-03