High-Performance Injection Moulding Screw Barrel for Your Plastic Processing Needs
Precision Engineering | Bimetallic Solutions | Extended Service Life
Why Choose JINZE Injection Moulding Screw Barrel?
Get High-Performance, Custom-Designed Injection Molding Screws to Fit Your Injection Molding Machine. At JINZE SCREW, We Specialize in Injection Molding Screw Designs That Improve Melt Quality, Recovery Time, Cycle Time, and Overall Molding Efficiency. Let Our Team Design a Solution for Your Process!
Screw sizes from Ø12mm to 200mm and sections up to 7,000mm in length
Barrel sizes range from Ø20mm，length up to 6,000mm
Valve assemblies ranging from Ø12mm to 250mm, made from high wear-resistant tool steels built to last!
High Wear & Corrosion Resistance solutions for your unique needs.
Experienced sales and engineer team will ensure well packaged goods fast delivery to your country.
What material is used for the injection moulding screw barrel?
The injection moulding screw barrel is typically made from high-strength, wear-resistant, and corrosion-resistant materials to ensure long service life and stable performance. The most commonly used materials include:
1. Nitrided Steel (38CrMoAlA); 2. Bimetallic Alloy (Base Material + Hard Alloy Coating); 3. High-Speed Tool Steel (SKD61, H13, D2, etc.);4. Stainless Steel (304, 316, etc.)
For most standard applications, nitrided steel is enough. But for high-wear or high-corrosion environments, bimetallic alloy screw barrels are the best choice due to their extended lifespan and better performance.
Is the screw barrel compatible with your injection moulding machine model? Can it be customized?
Yes, the screw barrel can be customized to match different injection moulding machine models. When ordering, customers typically provide:
- Machine brand and model (e.g., Haitian, Engel, Toshiba, Nissei, etc.).
- Original screw barrel specifications (if available).
- Processing requirements (materials used, desired output, etc.).
JINZE SCREW can produce screw barrels that fit both OEM machines and custom-designed injection moulding systems.
Manufacturing & Quality Control
At JINZE SCREW, we manufacture high-precision injection moulding screw barrels with strict tolerance control to ensure optimal plasticizing, mixing, and injection performance.
Standard Tolerances:
- Screw outer diameter: ±0.02mm
- Barrel inner diameter: ±0.02mm
- Flight depth tolerance: ±0.03mm
- Flight pitch tolerance: ±0.03mm
- Surface roughness (Ra): ≤0.4µm
- Straightness deviation: ≤0.015mm per 300mm
For high-performance applications (e.g., optical, medical, or high-speed injection molding), we can refine tolerances further based on customer requirements.
Precision Manufacturing Process
Precision Machining
CNC turning, milling, and grinding for high-accuracy profiles
Heat Treatment & Surface Hardening
Nitriding: Depth 0.4–0.7mm, hardness HV900–1000； Bimetallic alloy coating: Thickness 2–3mm, hardness HRC60–65；Quenching & tempering: Ensures strength and wear resistance
- Final Inspection & Testing Dimensional inspection；Hardness testing；Straightness & concentricity testing；Surface roughness measurement
We have extensive experience in manufacturing screw barrels for these brands of injection molding machines
Applications of Injection Moulding Screw Barrel
Automotive Industry
Injection moulding screw barrels are widely used to manufacture automotive plastic parts due to their high precision and efficiency.
Packaging Industry
Injection moulding is essential for mass production of lightweight, durable plastic packaging
Medical Industry
Medical injection moulding requires high precision and strict quality control.
Electronics & Electrical Industry
Plastic injection moulding is widely used in electrical components and casings
Consumer Goods & Household Appliances
Injection moulding is used for a variety of everyday products.
Pipe & Fitting Industry
Plastic injection moulding is used to produce high-precision pipe fittings and plumbing components.
How To Work With Us
Reach out us via email , our website, or through social media channels. You can also visit our factory or attend trade shows where we exhibit.
You can provide us following information:
Machine brand and model (e.g., Haitian, Toshiba, Nissei, etc.). You can send us the picture of machine nameplate.
- Original screw barrel specifications (if available).
- Processing requirements (materials used, desired output, etc.).
Our team will guide you through product options, recommend the best solution for your application, and answer any technical questions you may have. We are also available to discuss your production capacities, delivery deadlines, and any particular challenges you face in the procurement process..
- Customized Quotation: Based on your specific requirements, we will provide a detailed quotation. This includes product pricing, lead time, customization costs (if applicable), payment terms, and shipping details.
- Clarification: We can discuss any concerns regarding the quotation. If you need any adjustments in the design or specifications, we will modify the offer accordingly.
- Technical Consultation: If your order requires a customized extruder screw barrel or bimetallic solutions, we work closely with you to define the exact design and performance requirements. This includes screw geometry, steel materials, and coatings.
- Design Approval: Once our engineers have prepared a design or modification plan, we will send you CAD drawings and technical details for approval before moving forward. We will ensure that the designs meet your performance and manufacturing standards.
Production Begins: Upon order confirmation, our production team starts the manufacturing process.
Quality Control: Each part undergoes strict quality control tests, including dimensional checks, material testing, hardness testing, and performance simulations. We ensure that each part meets the required specifications before moving forward.
Regular Updates: We provide regular updates on the production status, including photographs or videos of the work in progress and any pre-shipment inspections.
Packaging & Shipment: All products are carefully packaged to prevent damage during transport. We will arrange for the most efficient shipping method according to your needs.
After-Sale Service: Our relationship does not end at delivery. We provide comprehensive after-sale support, including troubleshooting, warranty service, and guidance on maintenance. If any issues arise, we will work with you to resolve them promptly.
Contact us to get the screw barrel installation manual now !
Frequently Asked Technical Questions
Production Time
- Standard screw barrels: 25～35 days (for common sizes and designs).
- Custom screw barrels: 35-50 days, depending on complexity (e.g., special coatings, venting structures, mixing elements).
Material Availability Issues
- If special alloy coatings or materials (e.g., bimetallic tungsten carbide) are required, sourcing might take longer.
- Solution: Order in advance and confirm material stock before placing the order.
Production Overload
- If the factory has high order volume, production queues may extend lead time.
- Solution: Book orders early and request a firm production schedule.
Logistics & Customs Delays
- Holidays (Chinese New Year, Golden Week, etc.) can impact production and shipping schedules.
- Customs clearance in the destination country might add extra time.
- Solution: Plan ahead, avoid peak shipping seasons, and ensure proper documentation for smooth customs clearance.
Yes, in addition to injection moulding screw barrels, we can also supply a range of spare parts for injection moulding machines, including: 1. Screw & Barrel Components, Nozzles, Screw tips & check rings. 2.Tie bars 3. Heating & Temperature Control Parts
- Heater bands (ceramic, mica, coil)
- Thermocouples & sensors
- Cooling fans & heat exchangers
Standard warranty: 1 year (12 months) from the date of shipment. The warranty period depends on the processed plastic material and screw barrel anti-wearing solutions.
Coverage: Manufacturing defects, material failures, and premature wear (under normal operating conditions).
L/D ratio refers to the length-to-diameter ratio, which is the ratio of the screw's length (L) to its diameter (D). In an extruder, the L/D ratio is an important parameter as it affects the mixing, heating, and conveying of materials within the screw.
Yes, absolutely! At JINZE SCREW, we specialize in providing customized screw barrels to meet the unique processing requirements of our clients. We understand that different applications—whether it’s for specific materials, product types, or production conditions—demand precise customization.
Our engineering team works closely with you to design and manufacture screw barrels tailored to your exact needs. . We consider factors such as:Material Compatibility；Screw Geometry；Coatings & Surface Treatments；Specific Performance Requirements
