High Wear & Corrosion Resistant Screw & Barrel Solution for Injection & Extrusion – Customised for Halogen-Free Flame Retardant Compounds & High-Temperature Engineering Plastics

High Wear & Corrosion Resistant Screw & Barrel Solution for Injection & Extrusion – Customised for Halogen-Free Flame Retardant Compounds & High-Temperature Engineering Plastics
Publish Date: August 15, 2026
Company: Dongguan Jingchuangda Machinery Technology Co., Ltd.
Website: https://www.jcdextruder.com
As demand surges for high-performance engineering plastics in automotive, electronics and new energy industries, processors are facing prominent challenges: rapid abrasion and corrosion of standard screw and barrel when running glass-filled, halogen-free flame retardant materials and high-temperature resins. Ordinary nitrided components suffer short service life, unstable plasticization, frequent black specks and product defects, causing frequent production shutdowns and rising operating costs.
To solve these pain points, Jingchuangda launches professional custom bimetallic screw and barrel sets, specially developed for harsh working conditions of injection molding and extrusion lines.
Suitable Processing Materials
✅ Glass fiber reinforced plastics
✅ Halogen-free flame retardant formulations
✅ High-temperature engineering plastics: PA46, PA6T, PA9T, PBT, LCP, PPS
✅ Widely used for precision electronic connectors, automotive components, electrical parts and modified plastic granulation
Core Advantages of Jingchuangda Special Screw & Barrel
Excellent wear & corrosion resistance
Adopt centrifugal casting bimetallic barrel and tungsten carbide hardfaced screw flights. Thick alloy lining effectively resists abrasion from glass fiber and chemical corrosion generated by halogen-free flame retardant additives, service life reaches 2–4 times compared with conventional nitrided screw barrel.
Optimised screw geometry design
We tailor screw configuration according to material characteristics. Balanced shear design avoids thermal degradation of high-temperature sensitive plastics, delivers stable plasticization, uniform melt and consistent product quality. Reduce bubbles, burns and black spots on finished parts.
Precision manufacturing & stable operation
Strict concentricity control and high-precision machining. Compatible with most mainstream injection molding machines, single & twin screw extruders. Support customised size, alloy grade and structure based on customers’ actual working conditions.
Lower overall production cost
Long maintenance cycle, less unplanned downtime for replacement. Greatly cut spare parts consumption and improve continuous production efficiency.
Typical Application Scenarios
Precision connector injection molding for electronics & new energy vehicles
Compounding & granulation of halogen-free flame retardant engineering plastics
Modification and extrusion of high-temperature reinforced polymers
Twin-screw lab compounding and mass production extrusion
If you are troubled by fast screw wear, unstable plasticizing quality when processing halogen-free flame retardant, glass-filled or high-temperature engineering plastics, contact Jingchuangda for professional screw & barrel custom solution.
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