What materials and treatments are available?

We offer various materials including 38CrMoAl, 40Cr, SKD61, and bimetallic alloys. Treatments include nitriding (case depth 0.45-0.7mm, hardness Hv 850-1000), hard chrome plating, and carburizing.

ISO Certified Conical Twin Screw and Cylinder for Plastic Extrusion Machine

Name: ISO Certified Conical Twin Screw and Cylinder for Plastic Extrusion Machine
Brand: Zhejiang Guangming Plastics Machinery Co., Ltd.
SKU: 2241235765

Zhejiang, ChinaZhejiang Guangming Plastics Machinery Co., Ltd.

US$600.00

1-9 Sets

US$16,000.00

10+ Sets

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Return and Replacement

Warranty

12-18 Months Under Normal Use

Standard

DIN, ASTM, GOST, GB, JIS, ANSI, BS

Technics

Forging

Feature

Recycle

Material

Iron

Treatment

Bimetallic, Nitriding, Hard Chrome Plating

Nitrided Case Depth

0.45~0.7mm

Nitrided Hardness

Hv 850~10000

Surface Hardness

HRC Value

Screw Type

Twin Screw

Heat Treatment

Carburizing, Nitriding, Quenching, Tempering

Materials

38crmoala, 40cr, SKD61, Sacm645

MOQ

1 Set

Delivery Time

30-45 Days Working Days

Transport Package

Wooden Case with Anti-Rust Oil

Specification

25/50~185/340 mm

Trademark

GUANGYOU SCREW

Origin

Zhejiang, China

HS Code

847790

Production Capacity

32, 000 Sets/Year

Key features

ISO Certified Quality: 99.8% qualification rate with zero-defect protocols and German-imported QC systems.

Engineering-Led Customization: Custom geometry and material-specific solutions for abrasive, corrosive, and high-temp polymers.

Advanced Alloy Treatments: Nitriding, bimetallic, and hard chrome plating for superior wear and corrosion resistance.

Global Service & Support: Exported to 50+ countries with 24/7 technical support and comprehensive warranty coverage.

Wide Application Range: Suitable for PVC, PE, PP, WPC, rubber extrusion, and injection molding industries.

Strict Quality Control: 100% inspection of hardness, concentricity, and dimensional tolerance before delivery.

30 Years Expertise: Established in 1992, combining engineering excellence with cutting-edge production capabilities.

Company profile

Years of Export Experience

Zhejiang Guangming Plastics Machinery Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 25 years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤7.64h

AI-Powered supplier vetting

SummaryZhejiang Guangming Plastic Machinery Co., Ltd. specializes in manufacturing and selling equipment and products for plastic processing. The company prioritizes quality and customer service, with clear procedures for handling complaints and corrective actions. Despite a lack of overseas service capabilities and participation in trade shows, the supplier provides ODM and OEM services and is equipped with a small R&D team and CAD software. Production capacity is modest, with one production line and limited export trade experience. Financial data indicates stability over recent years.

Supplier typeThe supplier is a combined company involved in manufacturing and sales of special equipment for plastic processing and related technical services.

After-Sales capabilityThe supplier has clear procedures for handling complaints and corrective actions, indicating a structured after-sales service capability.

Financial creditFinancial data from the last three years suggests stability, with information available for 2022, 2023, and 2024.

Customization capabilityThe supplier provides customization from samples and designs and offers ODM services, supported by a small R&D team using CAD software.

Product Q&A

Q:What is the minimum order quantity (MOQ)?

The MOQ is 1 set. We accept small orders to accommodate diverse client needs.

Q:What is the lead time for production?

Lead time varies by size and treatment. Generally, 30-45 working days for standard items. Nitriding single screw barrels take 40-70+ days depending on diameter. Bimetallic screws require an additional 5 days.

Q:What is the lifespan of the screw and barrel?

Lifespan depends on the material formula and heat treatment. For 30phr nitriding, expect 3-5 years. Bimetallic screws and barrels have an extended lifespan due to enhanced durability.

Q:Can you customize the screw and barrel design?

Yes, we offer engineering-led customization. We can revise or redesign screws and barrels to improve output or melt quality based on your specific machine model and raw material requirements.

Q:How do you ensure product quality?

We maintain a 99.8% qualification rate through zero-defect protocols. Each product undergoes 100% inspection for hardness, concentricity, and tolerance. We also provide test reports for material, heat treatment, and tolerance before shipping.