China certification line recycle plastic comercial pp caco3 filler extrusion machine 1200mm extruder machine twin screw for lab threaded shaft extension

Condition: New
Plastic Processed: PE, PP, PVC, ABS, Xps, WPC, Polystyrene, PA, EVA, EPS, PET, PC, FRPP/PVC, HDPE, PPR, wood-plastic, ABS/PP, HDPE/PP, PE/PP, Lldpe, LDPE, Polylactic Acid
Application: Granules, Pelletizing
Screw Design: Double-screw
Twin Screw Type: Co-rotating Parallel Twin-screw
Screw Material: W6Mo5Cr4V2
Screw diameter (mm): 35.6
Screw L/D Ratio: 48
Screw Speed (rpm): 400 rpm
Showroom Location: Canada, Turkey, Italy, France, Viet Nam, Saudi Arabia, Indonesia, India, Mexico, Thailand, mini dental handpiece drill Ceramic Balls High Speed Turbine Handpiece Dental Drill Bearing SR144ZZ R144ZZ R144 SR144 ZZ South Korea, South Africa, Japan, Malaysia
Voltage: 380V Can be modified
Dimension(L*W*H): 4000*670*2200(mm)
Power (kW): 37
Weight: 2000 KG
Warranty: 3 years, 1 year
Key Selling Points: Multifunctional
Applicable Industries: Hotels, Garment Shops, Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Farms, Restaurant, Home Use, Retail, Food Shop, Printing Shops, Construction works , Energy & Mining, Food & Beverage Shops, Advertising Company, Other
Video outgoing-inspection: Provided
Warranty of core components: 3 years
Core Components: Gearbox
Machinery Test Report: Provided
Color: Color Choice(DIY)
Usage: Granules production line
Raw material: Masterbatch/PET/PP/PE/EVA/ABS/PVC
Machine type: Extruder machine
keywords: double screw plastic pellet extruder machine
Item Name: Twin Screw Granules Extruder
Motor: Simens, WEG
Inverter: ABB Frequency Controller
Product: Twin Screw Granules Extruder
Marketing Type: Ordinary Product
Packaging Details: laboratory mini recycle double screw plastic pellet extruder machine for pp pe pvc abs pla1. Firstly, we will paint the rust preventing oil on the product;2. Secondly, we will use wrapping film and packing film to wrap it;3. At last, it will be put into the wooden box[Standard fumigation wooden box].
Port: ZheJiang ( According to customer’s needs )

certification line recycle plastic comercial pp caco3 filler extrusion machine 1200mm extruder machine twin screw for lab 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.) Product details:1. Units Techical Characteristics(1) High torque/ high speed= high output;(2) Long-term stable performance; Smart Electronics DC 3V6V12V N20 Mini Micro Metal Gear Motor with Gearwheel DC Motors (3) TDH series is given consideration to ensuring maximum and longest unfailing performance;2. Typical Configuration (1) Imported high torque gear box and lubrication system, with high torque and high speed;(2) It is equipped with high torque screw shafts, nickels based carbide barrels and high wear-resistant screw elements;(3) Electrical control system is high-end touch screen system. All components are international CZPT brand;(4) The barrels, screw elements, gearbox of the main extruder are all produced by CNC milling machining center; 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.) Company Profile Exported to 60+countries, 10000M3 Factory area, 13 years history.CZPT twin-screw extruder-a CZPT in the development of twin-screw extruders, specializing in the design of various plastics(PP PE ABS PC TPE etc.), environmentally friendly materials (biodegradable resins), water-soluble materials, chemical, etc.compounding systems manufacture. In order to promote the research and development of high-end twin-screw, we established a twin-screw business research and development department with China North Industries Group in 2013. Our company has passed ISO,TUV, CE certification, and has 17 utility model patents, 4 invention patents, and 1 appearance patent.CZPT twin-screw extruder has a lot of experience and exclusive technology. Cooperating with us, you can obtain the best solution for every compounding requirement, from laboratory-level special applications to industrial production. The teams of Tengda’s various divisions composed of engineers, usedsecond hand farm wheel tractors, CZPT LX 1504 150hp 44wd with small agricultural equipment machinery loader chemical researchers, technicians and experts in various fields will provide customers with powerful process solutions.CZPT twin-screw extruder adheres to the tenet of paying great attention to the customer’s use of the equipment, focusing on the high production and efficiency of the equipment, the orderly design and the purpose of serving customers, to design and deliver the ideal equipment, and continue to create more value for customers.Enterprise Mission: Let every user of our machine use the peace of mind, rest assured, worries, create a CZPT model, and continue to develop for at least 192 years,three centuries, the same dream!Enterprise Version: Constantly surpass, committed to become an internationally competitive national enterprise. Let the plastic granules produced by CZPT Machinery extensively applied in every corner of the world, let CZPT become a production source that is indispensable for people’s life;Business philosophy: Quality-oriented, Remain true to our original aspiration and keep our mission firmly in mind. Certifications Our company was awarded as ZheJiang High-tech Enterprise and National High-tech Enterprise.Won the title of”2571 HangZhou Gazelle Enterprise”. This award represents the recognition by the Municipal Development and Reform Commission of HangZhou Tengda’s prosperous and healthy development over the years and its achievements.Our company has passed ISO:9001 international quality management system certification,EU CE certification, TUV Rheinland certification, and has more than 30 patents. Customer Photos Related products product-list-1.html FAQ Q: Are you trading company or manufacturer? A: We are factory.We have the technical production team,and the workers are all very experienced.Q: Why choose you? A:You can get a very fair price from us and our price can make you beat your competitors in the market.Q: What kind of certification do you have? A: Our products have obtained ISO9001 and CE certification,the quality can be guaranteed.We focus on the field of extrusion machine,and aim to be the best manufacturer of this field.Q:What’s the payment?A:L/C, T/T, Western Union, Paypal, rotovator blade agricultural spare parts agro machinery agricultural Money Gram, Cash.

What Are Screw Shaft Threads?

A screw shaft is a threaded part used to fasten other components. The threads on a screw shaft are often described by their Coefficient of Friction, which describes how much friction is present between the mating surfaces. This article discusses these characteristics as well as the Material and Helix angle. You’ll have a better understanding of your screw shaft’s threads after reading this article. Here are some examples. Once you understand these details, you’ll be able to select the best screw nut for your needs.

Coefficient of friction between the mating surfaces of a nut and a screw shaft

There are two types of friction coefficients. Dynamic friction and static friction. The latter refers to the amount of friction a nut has to resist an opposing motion. In addition to the material strength, a higher coefficient of friction can cause stick-slip. This can lead to intermittent running behavior and loud squeaking. Stick-slip may lead to a malfunctioning plain bearing. Rough shafts can be used to improve this condition.
The two types of friction coefficients are related to the applied force. When applying force, the applied force must equal the nut’s pitch diameter. When the screw shaft is tightened, the force may be removed. In the case of a loosening clamp, the applied force is smaller than the bolt’s pitch diameter. Therefore, the higher the property class of the bolt, the lower the coefficient of friction.
In most cases, the screwface coefficient of friction is lower than the nut face. This is because of zinc plating on the joint surface. Moreover, power screws are commonly used in the aerospace industry. Whether or not they are power screws, they are typically made of carbon steel, alloy steel, or stainless steel. They are often used in conjunction with bronze or plastic nuts, which are preferred in higher-duty applications. These screws often require no holding brakes and are extremely easy to use in many applications.
The coefficient of friction between the mating surfaces of t-screws is highly dependent on the material of the screw and the nut. For example, screws with internal lubricated plastic nuts use bearing-grade bronze nuts. These nuts are usually used on carbon steel screws, but can be used with stainless steel screws. In addition to this, they are easy to clean.

Helix angle

In most applications, the helix angle of a screw shaft is an important factor for torque calculation. There are two types of helix angle: right and left hand. The right hand screw is usually smaller than the left hand one. The left hand screw is larger than the right hand screw. However, there are some exceptions to the rule. A left hand screw may have a greater helix angle than a right hand screw.
A screw’s helix angle is the angle formed by the helix and the axial line. Although the helix angle is not usually changed, it can have a significant effect on the processing of the screw and the amount of material conveyed. These changes are more common in two stage and special mixing screws, and metering screws. These measurements are crucial for determining the helix angle. In most cases, the lead angle is the correct angle when the screw shaft has the right helix angle.
High helix screws have large leads, sometimes up to six times the screw diameter. These screws reduce the screw diameter, mass, and inertia, allowing for higher speed and precision. High helix screws are also low-rotation, so they minimize vibrations and audible noises. But the right helix angle is important in any application. You must carefully choose the right type of screw for the job at hand.
If you choose a screw gear that has a helix angle other than parallel, you should select a thrust bearing with a correspondingly large center distance. In the case of a screw gear, a 45-degree helix angle is most common. A helix angle greater than zero degrees is also acceptable. Mixing up helix angles is beneficial because it allows for a variety of center distances and unique applications.

Thread angle

The thread angle of a screw shaft is measured from the base of the head of the screw to the top of the screw’s thread. In America, the standard screw thread angle is 60 degrees. The standard thread angle was not widely adopted until the early twentieth century. A committee was established by the Franklin Institute in 1864 to study screw threads. The committee recommended the Sellers thread, which was modified into the United States Standard Thread. The standardized thread was adopted by the United States Navy in 1868 and was recommended for construction by the Master Car Builders’ Association in 1871.
Generally speaking, the major diameter of a screw’s threads is the outside diameter. The major diameter of a nut is not directly measured, but can be determined with go/no-go gauges. It is necessary to understand the major and minor diameters in relation to each other in order to determine a screw’s thread angle. Once this is known, the next step is to determine how much of a pitch is necessary to ensure a screw’s proper function.
Helix angle and thread angle are two different types of angles that affect screw efficiency. For a lead screw, the helix angle is the angle between the helix of the thread and the line perpendicular to the axis of rotation. A lead screw has a greater helix angle than a helical one, but has higher frictional losses. A high-quality lead screw requires a higher torque to rotate. Thread angle and lead angle are complementary angles, but each screw has its own specific advantages.
Screw pitch and TPI have little to do with tolerances, craftsmanship, quality, or cost, but rather the size of a screw’s thread relative to its diameter. Compared to a standard screw, the fine and coarse threads are easier to tighten. The coarser thread is deeper, which results in lower torques. If a screw fails because of torsional shear, it is likely to be a result of a small minor diameter.


Screws have a variety of different sizes, shapes, and materials. They are typically machined on CNC machines and lathes. Each type is used for different purposes. The size and material of a screw shaft are influenced by how it will be used. The following sections give an overview of the main types of screw shafts. Each one is designed to perform a specific function. If you have questions about a specific type, contact your local machine shop.
Lead screws are cheaper than ball screws and are used in light-duty, intermittent applications. Lead screws, however, have poor efficiency and are not recommended for continuous power transmission. But, they are effective in vertical applications and are more compact. Lead screws are typically used as a kinematic pair with a ball screw. Some types of lead screws also have self-locking properties. Because they have a low coefficient of friction, they have a compact design and very few parts.
Screws are made of a variety of metals and alloys. Steel is an economical and durable material, but there are also alloy steel and stainless steel types. Bronze nuts are the most common and are often used in higher-duty applications. Plastic nuts provide low-friction, which helps reduce the drive torques. Stainless steel screws are also used in high-performance applications, and may be made of titanium. The materials used to create screw shafts vary, but they all have their specific functions.
Screws are used in a wide range of applications, from industrial and consumer products to transportation equipment. They are used in many different industries, and the materials they’re made of can determine their life. The life of a screw depends on the load that it bears, the design of its internal structure, lubrication, and machining processes. When choosing screw assemblies, look for a screw made from the highest quality steels possible. Usually, the materials are very clean, so they’re a great choice for a screw. However, the presence of imperfections may cause a normal fatigue failure.

Self-locking features

Screws are known to be self-locking by nature. The mechanism for this feature is based on several factors, such as the pitch angle of the threads, material pairing, lubrication, and heating. This feature is only possible if the shaft is subjected to conditions that are not likely to cause the threads to loosen on their own. The self-locking ability of a screw depends on several factors, including the pitch angle of the thread flank and the coefficient of sliding friction between the two materials.
One of the most common uses of screws is in a screw top container lid, corkscrew, threaded pipe joint, vise, C-clamp, and screw jack. Other applications of screw shafts include transferring power, but these are often intermittent and low-power operations. Screws are also used to move material in Archimedes’ screw, auger earth drill, screw conveyor, and micrometer.
A common self-locking feature for a screw is the presence of a lead screw. A screw with a low PV value is safe to operate, but a screw with high PV will need a lower rotation speed. Another example is a self-locking screw that does not require lubrication. The PV value is also dependent on the material of the screw’s construction, as well as its lubrication conditions. Finally, a screw’s end fixity – the way the screw is supported – affects the performance and efficiency of a screw.
Lead screws are less expensive and easier to manufacture. They are a good choice for light-weight and intermittent applications. These screws also have self-locking capabilities. They can be self-tightened and require less torque for driving than other types. The advantage of lead screws is their small size and minimal number of parts. They are highly efficient in vertical and intermittent applications. They are not as accurate as lead screws and often have backlash, which is caused by insufficient threads.

China certification line recycle plastic comercial pp caco3 filler extrusion machine 1200mm extruder machine twin screw for lab     threaded shaft extensionChina certification line recycle plastic comercial pp caco3 filler extrusion machine 1200mm extruder machine twin screw for lab     threaded shaft extension
editor by czh 2023-03-20