K 2025, the premier international trade fair for the plastics and rubber industry, will be held from October 8 to 15, 2025, in Düsseldorf, Germany. As a benchmark company in the global twin-screw extruder components sector, Lesun Screw will showcase how manufacturing innovation through cold-forming technologies can transform twin-screw extruder spare parts from conventional replacement items into key components that enhance overall machine performance.
A wide range of specialized screw elements: featuring high wear- and corrosion-resistant elements made from HIP alloy materials, as well as specially engineered elements optimized for compounding and mixing processes;
Nickel-based alloy and tungsten carbide barrels: delivering exceptional wear and corrosion resistance, significantly extending barrel service life and reducing total maintenance costs;
Cold roll–formed mandrel manufacturing technology: utilizing advanced cold rolling processes to produce mandrels with high precision, high mechanical strength, and superior fatigue resistance, capable of meeting demanding high-speed and high-torque extrusion conditions (up to 18 Nm/cm³).
We cordially invite you to visit Booth 11H35-01 to explore how Lesun Screw can help your twin-screw extrusion lines achieve higher efficiency, greater reliability, and enhanced long-term performance.
Integrated barrel combining feeding and venting functions to optimize space and enhance process flexibility.
Best suited for:
Compact configurations
Combined feeding and venting
Flexible process layouts
Forward kneading elements provide a balance between conveying and mixing, with adjustable shear depending on stagger angle and disc width.
Best suited for:
Plastication zones
General compounding
Controlled mixing processes
SK conveying elements provide approximately 15% higher free volume than standard conveying elements and are particularly suitable for low bulk density materials.
Best suited for:
Feeding zones
Side feeding
Low bulk density materials
Stretching elements, also called S-type elements, improve material exchange and distributive mixing in partially melted zones.
Best suited for:
Semi-plasticized material zones
Improved dispersion
Gentle mixing processes
Precision involute spline ensuring high torque transmission with accurate centering and load distribution.
Best suited for:
High torque extrusion
Engineering plastics
Masterbatch production
Double flight conveying elements are the most widely used design in twin screw compounding. They provide the best balance between free volume and torque transmission.
Best suited for:
Feeding sections
Venting zones
Pressure control sections
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