For over 20 years, Nanjing Lesun Screw Co., Ltd. has been a trusted name in the field of Twin Screw Extruder components. We specialize in the design and manufacturing of high-precision parts such as Screw Element sets, barrels, and shafts—covering diameters from Ø18mm to Ø400mm—tailored for high-performance extrusion and compounding lines.
As a core supplier to global Industrial Machinery manufacturers, Lesun Screw stands out for its commitment to quality, durability, and innovation. Our components are engineered for long service life and superior mechanical performance, supporting a wide range of extrusion systems and processing conditions.
Through advanced CNC machining, automated operations, and controlled heat treatment, Lesun ensures that every part meets the strictest quality standards. Whether you're running high-speed masterbatch lines or specialized compounding units, our products deliver consistent results that support continuous operation and reduce maintenance costs.
We provide complete solutions for Modular Screws, allowing clients to build and reconfigure their extrusion systems with greater flexibility. Our wide variety of Screw Element profiles enables precise control over shear, mixing, and throughput—ideal for tailored process optimization.
Lesun Screw serves diverse sectors including:
Plastics & Masterbatch
Chemical Compounding
Powder Coatings
Food and Feed
Paper and Cable
Pharmaceuticals and Medical Devices
No matter the material or process, our Extrusion Solutions are built to support complex compounding, reactive extrusion, and custom formulations.
We understand that every process is different. That’s why we offer Custom Screw Design services to meet specific production goals. Whether you need enhanced mixing, lower melt temperatures, or precise feeding zones, our engineers work directly with your team to develop high-efficiency screw solutions.
Partner with Lesun Screw for long-lasting, precision-engineered Twin Screw Extruder parts that empower innovation across industries.
Get in touch: info@lesunscrew.com
Cold-Forming high-torque shaft with improved strength and fatigue resistance for demanding extrusion conditions.
Best suited for:
High torque extrusion systems
High filler compounding
Continuous high-load production
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
Neutral kneading elements provide strong mixing with minimal conveying effect, ensuring stable residence time and high mixing efficiency.
Best suited for:
High mixing zones
Sensitive formulations
Residence time control
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
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
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