OEM Twin Barrel Screw Manufacturer for Extrusion Lines: Guangyou Screw's Capabilities

OEM Twin Barrel Screw Manufacturer for Extrusion Lines: Guangyou Screw's Capabilities

For operators of extrusion lines, selecting a reliable OEM twin barrel screw manufacturer is critical to maintaining consistent output, reducing downtime, and managing long-term costs. Zhejiang Guangming Plastics Machinery Co., Ltd. (brand Guangyou Screw) is a multinational manufacturer of high-precision barrels and screws, operating a 100,000+ m² smart facility with over 800 employees. The company specializes in custom twin barrel screws for extrusion, injection molding, and compounding applications, serving OEMs and end-users in more than 50 countries.

Problem: Sourcing Reliable Twin Barrel Screws for Extrusion Lines

Procurement teams often face three challenges when sourcing twin barrel screws for extrusion: inconsistent dimensional accuracy, insufficient wear resistance for abrasive compounds, and long lead times that disrupt production planning. A certified OEM manufacturer with in-house alloy processing, full testing, and global logistics can eliminate these pain points.

Industry Background

The global feed screw barrel market was valued at USD 1.89 billion in 2024 and is projected to reach USD 3.33 billion by 2034 (CAGR 5.8%). Twin-screw extruders are widely used in PVC pipe, WPC, sheet, and profile extrusion, as well as compounding and pelletizing. Within this segment, conical and parallel twin barrel screws require precise manufacturing to ensure proper material plastication and reduced wear.

Detailed Solution: Guangyou Screw's OEM Twin Barrel Screw Manufacturing

Guangyou Screw offers OEM production and customization for voltage and logo. The minimum order quantity is 1 unit. The manufacturer performs 100% testing on all products. Supported by 25 R&D engineers and an annual output of 32,000 units, the company delivers conical twin barrel screws (Φ25/50–Φ185/340), parallel twin barrel screws (Φ45–Φ350), single extruder screws, injection molding screws, and rubber machine screws.

All twin barrel screw products meet the following technical specifications:

• Hardness after hardening & tempering: HB260–310
• Nitrided hardness: HV850–1000
• Nitrided case depth: 0.45–0.7 mm
• Nitrided brittleness: less than Grade 2
• Surface roughness: Ra ≤ 0.4 µm
• Screw straightness: 0.015 mm
• Optional bimetallic alloy depth: 0.8–2.0 mm

Materials include standard 38CrMoAl, D2, AISI316, 34CrAlNi7, and many others. For highly abrasive PVC or WPC compounds, bimetallic versions with alloy liners (HRC50–65) can be supplied.

Step-by-Step OEM Collaboration Process

1. Inquiry & Drawings – Submit technical drawings or sample parts; the engineering team reviews manufacturability.
2. Quotation & Confirmation – Pricing, lead time, and payment terms (30/70) are provided.
3. Customization – Voltage, logo, and material grade are finalized.
4. Production – CNC machining, nitriding/bimetallizing, and surface finishing performed under ISO 9001:2015 and ISO 14001:2015 certified processes.
5. 100% Inspection – Each unit undergoes hardness, straightness, and dimensional checks.
6. Shipment – FOB/CIF delivery with pre-shipment test reports.

Use Cases

Guangyou Screw has supplied custom components to three typical client types:

• Screw & Barrel Manufacturers & Distributors – Batch orders (1–50 pieces) for local replacement and retrofit, achieving 100% precise mechanical fit.
• Plastic Products Manufacturers – High-wear and corrosive polymer processing lines; prolonged service life and reduced downtime.
• Extrusion & Injection Machinery OEMs – Stable batch delivery with high dimensional consistency for new machine assembly.

Product Comparison: Twin Barrel Screw Types

Type	Diameter Range	Typical Application	Core Material	Nitrided Hardness
Conical Twin Barrel Screw	Φ25/50–Φ185/340	PVC extrusion (pipe, profile)	38CrMoAl	HV850–1000
Parallel Twin Barrel Screw	Φ45–Φ350	Compounding & pelletizing	D2, 34CrAlNi7	HV850–1000
Single Screw Extruder	Φ20–Φ500	Film blowing, pipe extrusion	38CrMoAl, 42CrMo	HV850–1000
Injection Molding Machine	Φ20–Φ300	Automotive, electronics	38CrMoAl, SKD61	HV850–1000
Rubber Machine Screw	Φ20–Φ650	Tire, rubber extrusion	38CrMoAl, D2	HV850–1000

Certifications & Quality Assurance

Guangyou Screw holds three active management system certificates issued by WIT ASSESSMENT:

• ISO 9001:2015 (Quality Management) – Certificate 15/25Q6428R80, valid until 2028-05-12.
• ISO 14001:2015 (Environmental Management) – Certificate 15/25E6429R20, valid until 2028-10-07.
• ISO 45001:2018 (Occupational Health and Safety) – Certificate 15/25S6430R20, valid until 2028-10-07.

These certifications cover the design and manufacture of counter-rotating twin-screw and barrel for plastic extruders, ensuring consistent product quality and workplace safety.

OEM Advantages at Guangyou Screw

• Low MOQ: 1 unit – ideal for prototype and small-batch testing.
• Full customization: Voltage, logo, material grade, and bimetallic options.
• End-to-end quality: 100% inspection with pre-shipment test reports.
• Global delivery: FOB/CIF terms, serving EU, Americas, and Asia with lead times from 40 days (Φ20–Φ90) to 70+ days (over Φ250).
• After-sales warranty: Warranty coverage on all manufactured parts.

FAQ

Conclusion

Guangyou Screw combines 30+ years of manufacturing experience (since 1992), a 100,000 m² factory, ISO‑certified processes, and a global export footprint to serve as a reliable OEM twin barrel screw partner for extrusion lines. For procurement professionals moving from evaluation to execution, Guangyou Screw offers low‑risk prototype orders, full material traceability, and consistent dimensional accuracy. Download the complete product catalog to review detailed specifications and start your OEM inquiry.