Condition: New
Material: PP
Weight (KG): 1
Spare Parts Type: Screw
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Warranty: 1 Year
Key Selling Points: Competitive Price
Applicable Industries: Manufacturing Plant
Showroom Location: None
After-sales Service Provided: Engineers available to service machinery overseas
Application: modular structure parallel co-rotating twin screw extruder used
Packaging Details: wooden case packing
Port: ZheJiang Port
co-rotating twin screw extruder screw and barrel,Manufacturer plans to customize
Product Parameters
| —PRODUCT PARAMETERS— |
Machine Process
| —MACHINE PROCESS— |
user-defined attribu
| —USER-DEFINED ATTRIBU— |
Type: machine parts
Plastic processed: polyolefins, wood composites, PVC
Brand name:Kerke
Model number: customizable
Material: W6Mo5Cr4V2/38CrMoALA/440C etc
Package: wooden case
Delivery time: 30 working days
Hardness: HRC 58-62
Certification: CE&BV&TUV
Barrel: 45 steel, 38CrMoAl nitrided, etc
Inside liner: W6Mo5Cr4V2, C12MoV, tungusten carbide, etc
Treatment: tempering/nitrogen, etc
Application: for twin/single screw extruder
Type: machine parts
Material: 45# steel
Surface treatment:bimetallic execution
Brand name:Kerke
Model number: customizable
Package: wooden case
Delivery time: 20 working days
HRC: 58-62
Certification: CE&BV&TUV
Description
| —DESCRIPTION— |
· convenient interchangeability by agile combination.
· fulfill efficient self-cleaning, transmission, compounding, pressure-forming, etc.
· 900mm length 12mm diameter pitch 4 SFU1204-3 screw high precision ball screw set cnc accessories adjusting screw rod made of high tool speed W6Mo5Cr4V2, or anti-corrosion steel 38CrMoAlA by special treatment.
Assembled together, they will become twin screw which are essential and key part of extruders for material to
transmission, shearing and plasticization.
Designed by modular principle.Precise processed, agile combinationSelf-cleaning,transmission,compounding
barrel: 45# steel barrel body, inside line is made of bi-metal alloy.
building blocks barrel and screw can adjust different materials
By means of the replaceable screw barrel sections, the processing sections is devoted into individual zones. The barrels are heated electrically. In addition, the barrels are provided with longitudinal bores for cooling with water. Uniform temperature distribution, namely on the circumference of the eight-shaped barrel bore, is achieved by a reverse force-flow temperature control circuit. Connections of pipes for temperature control are in groove-tongue design to balance alternating thermal stress and avoid leakage.
Company Profile
| —COMPANY PROFILE— |
HangZhou Kerke Extrusion Equipment Co., Ltd is a comprehensive manufacturing and trading company in China. our company is a professional manufacturer of high quality pelletizing extruders for coloring /dyeing and masterbatch production, as well as plastic modification and compounding,plastic recycling. Innovative machines are built as per the concept of durability, high efficiency and economical power consumption.
We carry out a strict quality management system in accordance with CE requirements. There are over 100 styles of extruder and extruder spare parts and we also can customize for customers’ various requirement for extruder spare parts. Our annual production capacity is 200 sets plastic extruder in domestic country! And we also have OEM ability in pelletizing plastic extruder industry in consistence with specific requirement from both national and international customers.
Moreover, we are pleased to introduce our company as 1 of the leading exporters of parallel twin screw extruder in China.
Our machine types:
1. Co-Rotating Parallel Twin Screw Pelletizing Extruders2. Single Screw Pelletizing Extruders3. Die Face Cut (Air Cooling) Pelletizing Extruders4. Double Stage / Double Degassing Recycling Extruders5. Crushers, Mixers, Storage Tanks, Vibrators, Granulators, Blowers6. Extruder spare parts
If you are interested in some of our products, please feel free to visit our website or contact us for more information and pictures. We are looking CZPT to establishing long-lasting business relationships with you in the near future.
Presales service:
>introducing in detail features and application of the products to customer
> flail mower blades flail mower hammer blades Selecting economical and practical machine & equipment for customer
>Providing operation data of the related machine & equipment
>Providing means of trial performance for customer
Sales service:
>Recommending engineering conditions required for installation of the machine & equipment
>Communicating in time the manufacturing progress of the machine with user
>Providing assistance in technical conditions, screw combination and barrel disposition needed for product
After-sales service:
>Providing on-the-spot technical assistance in installation, commission and training
>Filling in detail customer’s information
>Providing long-term maintenance service and spare parts
>Giving technical support to customer for developing new product
>Providing free maintenance for a year
Exhibition
| —EXHIBITION— |
Universities cooperate with us:
HangZhou Institute of Technology, HangZhou University, HangZhou Jiaotong University, HangZhou University of Technology, Thailand Suranaree University of Technology(Food Engineering Department), Holland colours Indonesia,etc
Packing & shipping
| —PACKING & Spoke Wheel Axle Track 1840mm Double Tyre Six Spoke Hub Axle SHIPPING— |
Screw Shaft Types and Uses
Various uses for the screw shaft are numerous. Its major diameter is the most significant characteristic, while other aspects include material and function are important. Let us explore these topics in more detail. There are many different types of screw shafts, which include bronze, brass, titanium, and stainless steel. Read on to learn about the most common types. Listed below are some of the most common uses for a screw shaft. These include: C-clamps, screw jacks, vises, and more.
Major diameter of a screw shaft
A screw’s major diameter is measured in fractions of an inch. This measurement is commonly found on the screw label. A screw with a major diameter less than 1/4″ is labeled #0 to #14; those with a larger diameter are labeled fractions of an inch in a corresponding decimal scale. The length of a screw, also known as the shaft, is another measure used for the screw.
The major diameter of a screw shaft is the greater of its two outer diameters. When determining the major diameter of a screw, use a caliper, micrometer, or steel rule to make an accurate measurement. Generally, the first number in the thread designation refers to the major diameter. Therefore, if a screw has a thread of 1/2-10 Acme, the major diameter of the thread is.500 inches. The major diameter of the screw shaft will be smaller or larger than the original diameter, so it’s a good idea to measure the section of the screw that’s least used.
Another important measurement is the pitch. This measures the distance between one thread’s tip and the next thread’s corresponding point. Pitch is an important measurement because it refers to the distance a screw will advance in one turn. While lead and pitch are two separate concepts, they are often used interchangeably. As such, it’s important to know how to use them properly. This will make it easier to understand how to select the correct screw.
There are three different types of threads. The UTS and ISO metric threads are similar, but their common values for Dmaj and Pmaj are different. A screw’s major diameter is the largest diameter, while the minor diameter is the lowest. A nut’s major diameter, or the minor diameter, is also called the nut’s inside diameter. A bolt’s major diameter and minor diameter are measured with go/no-go gauges or by using an optical comparator.
The British Association and American Society of Mechanical Engineers standardized screw threads in the 1840s. A standard named “British Standard Whitworth” became a common standard for screw threads in the United States through the 1860s. In 1864, William Sellers proposed a new standard that simplified the Whitworth thread and had a 55 degree angle at the tip. Both standards were widely accepted. The major diameter of a screw shaft can vary from one manufacturer to another, so it’s important to know what size screw you’re looking for.
In addition to the thread angle, a screw’s major diameter determines the features it has and how it should be used. A screw’s point, or “thread”, is usually spiky and used to drill into an object. A flat tipped screw, on the other hand, is flat and requires a pre-drilled hole for installation. Finally, the diameter of a screw bolt is determined by the major and minor diameters.
Material of a screw shaft
A screw shaft is a piece of machine equipment used to move raw materials. The screw shaft typically comprises a raw material w. For a particular screw to function correctly, the raw material must be sized properly. In general, screw shafts should have an axial-direction length L equal to the moving amount k per 1/2 rotation of the screw. The screw shaft must also have a proper contact angle ph1 in order to prevent raw material from penetrating the screw shaft.
The material used for the shaft depends on its application. A screw with a ball bearing will work better with a steel shaft than one made of aluminum. Aluminum screw shafts are the most commonly used for this application. Other materials include titanium. Some manufacturers also prefer stainless steel. However, if you want a screw with a more modern appearance, a titanium shaft is the way to go. In addition to that, screws with a chromium finish have better wear resistance.
The material of a screw shaft is important for a variety of applications. It needs to have high precision threads and ridges to perform its function. Manufacturers often use high-precision CNC machines and lathes to create screw shafts. Different screw shafts can have varying sizes and shapes, and each one will have different applications. Listed below are the different materials used for screw shafts. If you’re looking for a high-quality screw shaft, you should shop around.
A lead screw has an inverse relationship between contact surface pressure and sliding velocity. For heavier axial loads, a reduced rotation speed is needed. This curve will vary depending on the material used for the screw shaft and its lubrication conditions. Another important factor is end fixity. The material of a screw shaft can be either fixed or free, so make sure to consider this factor when choosing the material of your screw. The latter can also influence the critical speed and rigidity of the screw.
A screw shaft’s major diameter is the distance between the outer edge of the thread and the inner smooth part. Screw shafts are typically between two and sixteen millimeters in diameter. They feature a cylindrical shape, a pointy tip, and a wider head and drive than the former. There are two basic types of screw heads: threaded and non-threaded. These have different properties and purposes.
Lead screws are a cost-effective alternative to ball screws, and are used for low power and light to medium-duty applications. They offer some advantages, but are not recommended for continuous power transmission. But lead screws are often quieter and smaller, which make them useful for many applications. Besides, they are often used in a kinematic pair with a nut object. They are also used to position objects.
Function of a screw shaft
When choosing a screw for a linear motion system, there are many factors that should be considered, such as the position of the actuator and the screw and nut selection. Other considerations include the overall length of travel, the fastest move profile, the duty cycle, and the repeatability of the system. As a result, screw technology plays a critical role in the overall performance of a system. Here are the key factors to consider when choosing a screw.
Screws are designed with an external threading that digs out material from a surface or object. Not all screw shafts have complete threading, however. These are known as partially threaded screws. Fully threaded screws feature complete external threading on the shaft and a pointed tip. In addition to their use as fasteners, they can be used to secure and tighten many different types of objects and appliances.
Another factor to consider is axial force. The higher the force, the bigger the screw needs to be. Moreover, screws are similar to columns that are subject to both tension and compression loads. During the compression load, bowing or deflection is not desirable, so the integrity of the screw is important. So, consider the design considerations of your screw shaft and choose accordingly. You can also increase the torque by using different shaft sizes.
Shaft collars are also an important consideration. These are used to secure and position components on the shaft. They also act as stroke limiters and to retain sprocket hubs, bearings, and shaft protectors. They are available in several different styles. In addition to single and double split shaft collars, they can be threaded or set screw. To ensure that a screw collar will fit tightly to the shaft, the cap must not be overtightened.
Screws can be cylindrical or conical and vary in length and diameter. They feature a thread that mates with a complementary helix in the material being screwed into. A self-tapping screw will create a complementary helix during driving, creating a complementary helix that allows the screw to work with the material. A screw head is also an essential part of a screw, providing gripping power and compression to the screw.
A screw’s pitch and lead are also important parameters to consider. The pitch of the screw is the distance between the crests of the threads, which increases mechanical advantage. If the pitch is too small, vibrations will occur. If the pitch is too small, the screw may cause excessive wear and tear on the machine and void its intended purpose. The screw will be useless if it can’t be adjusted. And if it can’t fit a shaft with the required diameter, then it isn’t a good choice.
Despite being the most common type, there are various types of screws that differ in their functions. For example, a machine screw has a round head, while a truss head has a lower-profile dome. An oval-its point screw is a good choice for situations where the screw needs to be adjusted frequently. Another type is a soft nylon tip, which looks like a Half-dog point. It is used to grip textured or curved surfaces.
editor by czh 2023-03-20