Screw & Barrel Services
Zhoushan Nanhaiya Plastic Machinery Co., Ltd. supports plastic extrusion and injection molding operations with engineering and surface-treatment services for screws and barrels. Choose custom screw design for a solution built around your material and machine, or alloy spray welding to improve wear and corrosion resistance on new or worn components.
Our Services
Not sure which fits? Choose Custom Screw Design when you need a screw or barrel engineered for a specific material, machine or application. Choose Alloy Spray Welding when you want to improve the wear and corrosion resistance of new or worn screws and barrels.
Custom Screw Design
Tailored screw and barrel solutions engineered from your material type, machine specifications and production targets. Our in-house engineering team designs flight geometry, compression ratios and surface treatments, then manufactures on CNC and 5-axis machining centers with quality inspection before delivery.
- Requirement analysis, design, manufacturing, testing and delivery
- Material options: nitrided steel, bimetallic alloy, tool steel, spray welding
- For PE WPC, PVC, EVA, TPR/TR and specialty compound processing
Alloy Spray Welding
Dual-alloy spray coating technology that applies a metallurgically bonded protective layer to the working surfaces of screws and barrels. It improves wear and corrosion resistance and can help extend service life depending on application, and is suitable for both new and worn components.
- Improved wear and corrosion resistance
- Applicable to new and worn screws and barrels
- For glass-fiber filled, mineral-filled, recycled and corrosive PVC compounds
Request a Quote
Share your machine model, screw or barrel dimensions, processed material and application. Our engineering team reviews your requirements and provides technical support and pricing.