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Nanjing Lesun Screw Co., Ltd.
Nanjing Lesun Screw Co., Ltd.
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UPCOMING EVENTS

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2025 07.09
Lesun Screw: High-Performance Screw Elements and OEM Components for Twin-Screw Extruders
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09 Jul 2025
Lesun Screw: High-Performance Screw Elements and OEM Components for Twin-Screw Extruders Lesun Screw: High-Performance Screw Elements and OEM Components for Twin-Screw Extruders
08 Jul 2025
Precision Screw Elements for Optimal Twin-Screw Extrusion by Lesun Screw Precision Screw Elements for Optimal Twin-Screw Extrusion by Lesun Screw
26 Jun 2025
Industry Deep Dive | Nylon Modification & High-Performance Processing Technology Seminar Industry Deep Dive | Nylon Modification & High-Performance Processing Technology Seminar
29 Dec 2021
Common Materials and Strength Calculation of Screw Barrel
Common Materials and Strength Calculation of Screw Barrel
I. Extruder screw material1. Requirements for materialsIt can be seen from the extrusion process that the extruder screw works under high temperature, certain corrosion, strong wear and high torque. ...
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22 Dec 2021
What is the Principle of Barrel Screw Repair?
What is the Principle of Barrel Screw Repair?
Screw and barrel are two important parts. One is a slender threaded rod, and the other is a small and long hole. Their machining and heat treatment processes are complex, and it is difficult to ensure...
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15 Dec 2021
How to Choose Screw for Different Raw Materials?
How to Choose Screw for Different Raw Materials?
I. PC material (polycarbonate) of extruder screw1. Features(1) Amorphous plastic, no obvious melting point, glass transition temperature 140°-150°C, melting temperature 215°C-225°C, molding ...
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08 Dec 2021
Basic Knowledge About Screw Assembly: Thread Elements
Basic Knowledge About Screw Assembly: Thread Elements
1. Conveying elements of extruder screwThe conveying element is threaded, and its function is to convey materials (including liquid materials). The shape of the screw groove can be rectangular or a sp...
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01 Dec 2021
In November 2021, LESUN Sets Sail Again
In November 2021, LESUN Sets Sail Again
In the past 20 years, LESUN has developed as fast as a torrential river. A team of less than 50 people has gone through all the difficulties and obstacles at the beginning of its establishment, and ...
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29 Nov 2021
How to Effectively Strengthen the Screw?
How to Effectively Strengthen the Screw?
1. Clean up the appearance of the extruder screwBefore screw spray welding, the remaining plastic attachments on the surface of the extruder screw should be removed. The method of removal is to rotate...
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24 Nov 2021
The Advantages of Extruder Screw and Analysis of Common Problems
The Advantages of Extruder Screw and Analysis of Common Problems
The extruder screw is an important part of the plastic machine equipment, and it is directly related to the plasticizing effect and output of the plastic machine.1. Advantages of extruder screw...
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22 Nov 2021
An Effective Way to Improve the Performance of the Ball Screw
An Effective Way to Improve the Performance of the Ball Screw
Ball screw is a transmission mechanical component in which the steel ball moves between the nut and the screw, converts the sliding contact of the traditional screw into rolling contact, and then ...
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17 Nov 2021
The Basic Structure and Application Characteristics of the Extruder Screw
The Basic Structure and Application Characteristics of the Extruder Screw
1. The conventional full-thread extruder screw can be divided into three forms:(1) Equidistant variable-depth screwAccording to the speed of the change of the groove depth, the equal-distance variable...
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15 Nov 2021
Internal Structure Analysis and Maintenance Matters Needing Attention of Screw Machine
Internal Structure Analysis and Maintenance Matters Needing Attention of Screw Machine
I. Internal structure of extruder screw(1) The extruder screw can be a structure or assembled in different parts. The additional mixing section installed at the end of the extruder screw is usually ...
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Related products
SME Mixing Screw Elements SME Mixing Screw Elements
SME Mixing Screw Elements

SME elements introduce shallow reverse grooves on conveying flights, generating controlled melt backflow and improving distributive mixing.

Best suited for:

  • Melt stage mixing

  • General distributive mixing

  • Applications requiring good self-cleaning

View details >
Transition Screw Elements Transition Screw Elements
Transition Screw Elements

Transition elements are designed to connect different screw element geometries while minimizing dead zones and material retention.

Best suited for:

  • Transition between single and double flight elements

  • Connection between SK and standard conveying elements

  • Geometry change zones within complex screw configurations

View details >
More Information
Compatible with Global Twin-Screw Extruder Brands
Compatible with Global Twin-Screw Extruder Brands Knowledge >
Knowledge >
Compatible with Global Twin-Screw Extruder Brands
Shaft Cold Forming
Shaft Cold Forming Product Catalog Download >
Product Catalog Download >
Shaft Cold Forming
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