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
Process Cost & Lead Time Estimator
Different applications, material requirements and machining complexity change what a screw and barrel costs to produce and how long it takes. Make four selections below to see how your requirement shapes the recommended process, the relative cost impact and the expected lead time.
Step 1
Application Scenario
What will the screw and barrel be running?
Step 2
Material Requirement
What does the working surface need to withstand?
Step 3
Process Option
Your current preference — we will confirm or suggest an alternative
Step 4
Product Complexity
How much engineering and machining work is involved?
Your Indicative Result
Complete all four steps to see your indicative result.
Lead Time Reference
- Standard Delivery: Around 45 days
- Our standard production lead time once the specification and order details are confirmed.
- Fast Track: As fast as 30 days
- Achievable when drawings, material and order details are confirmed up front and the specification stays within our standard production range.
- Complex Custom Project: 45-60 days
- Applies when material, coating, size or machining complexity require additional engineering and production time.
Your Indicative Result
Material Cost Impact
Machining Cost Impact
Expected Lead Time
Your Selection
Next Step
Send your machine model, screw and barrel dimensions, processed material and target output. Our engineering team reviews the requirement and confirms the specification, cost and schedule.
This estimate is for preliminary reference only. Final cost and lead time depend on drawings, material grade, size, quantity, and production schedule.
Want the background behind these options?
Search a material, process or symptom to find the technical articles, product pages and services that explain it.
These are navigation suggestions based on keyword matching — not a quotation, not a delivery commitment, and not a substitute for engineering review. Final specification is confirmed by our engineers against your drawings and processed material.
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.