Zhoushan, China — A Well-Known Screw & Barrel Manufacturing Hub
We manufacture precision screws and barrels for plastic extrusion, injection molding and related processing equipment, with CNC machining and custom manufacturing support from Zhoushan, China.
We machine single screw barrels, twin screw barrels, extruder screw barrels, spare parts and related components using CNC and 5-axis equipment.
With more than a decade of screw and barrel manufacturing experience in Zhoushan, Nanhaiya works with overseas buyers on custom production, technical review and factory-direct quotations.
Work directly with our Zhoushan factory for pricing, production details and quality control communication.
Advanced manufacturing with CNC lathes and 5-axis machining centers for precision machining and dimensional inspection.
Inspection requirements and warranty terms are agreed for each order based on the product type, application and order agreement.
Tailored screw geometry and barrel configurations engineered for your specific polymer and application.
Our team reviews technical requirements and prepares quotations for international buyers.
We support plastic machinery customers across Europe, the Americas, the Middle East, and Southeast Asia.
Located in Zhoushan — a well-known screw and barrel manufacturing hub in China — our facility combines decades of regional expertise with modern manufacturing technology. Our workshop houses advanced CNC lathes, deep-hole drilling machines, and 5-axis machining centers.
Our precision screws and barrels support plastic processing customers in international markets, from high-volume extrusion plants to specialty polymer facilities.
Industry knowledge, product guides, and manufacturing tips from our engineering team.
Extruder barrel price guide covering cost drivers, material tiers, geographic pricing, OEM vs. aftermarket options, and total ownership cost to help buyers compare quotes smartly.
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Extruder screw design guide covering geometry parameters, polymer-specific screw selection, mixing principles, wear-resistant materials, and a step-by-step design workflow.
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Learn how a plastic extruder works — every component, screw type, material match, process parameter, and troubleshooting fix covered in one expert guide.
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Get a custom quotation for precision screws and barrels tailored to your exact specifications. Our team can review your machine information, processed material, drawings, photos or worn samples so that we can prepare a quotation and carry out a technical review.
