About LESUN
Lesun specializes in the manufacturing and custom development of core twin-screw extruder components such as screw elements, shafts, and barrels. We provide extruder parts that are compatible with various extruder brands and are specifically built to meet each customer's individual operational needs.
With over 20 years of experience, Lesun has the process know-how to address complicated applications, as well as tens of thousands of measurement drawings for different extruder models and operating applications.
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Manufacturing CapabilitiesLesun’s new manufacturing facility was commissioned in 2021, occupying approximately 16,000 m², with 10,000 m² of production and building space. The company employs more than 50 people and has an annual production capacity of 4,000 m of screw elements, 1,400 screw shafts, and 1,000 extruder barrels.
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Quality Control and InspectionUnder high-torque, high-load, high-fill, and heavy-wear conditions, the service life of a twin-screw extruder's screw elements is determined not only by material performance but also by the manufacturing process's stability and uniformity.
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ServicesLesun is a lifecycle partner, not just an extruder parts manufacturer and supplier. In addition to manufacturing screw elements, shafts and barrels, we assist customers with engineering, bespoke development, supply-chain and training the difference between merely supplying a part and keeping a production line running reliably.
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Material and Metallurgy SolutionsIn twin-screw extrusion, the failure mechanisms are entirely different due to the use of different formulation systems. Wear and corrosion are the dominant factors in certain conditions, while fatigue, impact, and corrosion are frequently observed in conjunction.
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