Can you improve the properties of my current screw and barrel?

Yes, if you are unsatisfied with output or melt quality, our engineers can revise or redesign your screw and barrel with customized solutions.

Nitrided Parallel Twin Screw Barrel for PVC Plastic Extruder

Name: Nitrided Parallel Twin Screw Barrel for PVC Plastic Extruder
Brand: Zhejiang Guangming Plastics Machinery Co., Ltd.
SKU: 2244921555

Zhejiang, ChinaZhejiang Guangming Plastics Machinery Co., Ltd.

US$1,000.00

1-4 Sets

US$900.00

5+ Sets

Product specifications

size

Sample price:US$30.00/set.Request sample

Product profile

Customization

Available

After-sales Service

Technical Support

Warranty

6-12 Months Under Normal Use

Model NO.

Standard

DIN, ASTM, GOST, GB, JIS, ANSI

Technics

Forging

Feature

Recycle

Material

Iron

Materials

38crmoala, 40cr, SKD61, 31crmov9, D2, Gr12MOV

Hardness of Tempering

Hb280-320

Nitriding Hardness

Hv850-1000

Nitriding Layer Depth

0.45~0.7mm

Nitriding Brittleness

Grade II

Surface Roughness

≤ Ra0.4

Screw Straightness

0.015mm

Chrome Coating Thickness

0.025~0.10mm

Dual Alloy Hardness

HRC50-65

Double Alloy Depth

0.8~2.0mm

MOQ

1 Set

Delivery Time

30-60 Days

Transport Package

Wooden Box

Specification

Screw Diameter 45~350MM

Trademark

GUANG YOU SCREW

Origin

Zhejiang, China

HS Code

847790

Production Capacity

120000set/Year

Key features

Nitrided Surface Hardness: HV850-1000 with layer depth 0.45-0.7mm for superior wear resistance.

Custom Material Options: Available in 38CrMoAla, 40Cr, SKD61, and other specialized alloys.

OEM/ODM Customization: Full customization for materials, hardness, and dimensions is available.

Precision Manufacturing: CNC machining ensures screw straightness of 0.015mm and Ra0.4 roughness.

Advanced Bimetallic Tech: Dual alloy hardness HRC50-65 with depth 0.8-2.0mm for extended life.

ISO9001 Certified Quality: Strict quality control with test reports for material and heat treatment.

Lifetime Technical Support: 48-hour response, on-site support, and reverse engineering services.

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

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: >24h

AI-Powered supplier vetting

SummaryZhejiang Guangming Plastic Machinery Co., Ltd. is identified as a combined company manufacturing and selling plastic-processing equipment, plastic products, and mechanical components. It offers screw and barrel products, OEM for known brands, ODM, and customization from samples or designs. The supplier reports documented service procedures, complaint handling, corrective and preventive actions, four R&D engineers, design documentation, and CAD capability. Production is reported at one line, with no ongoing batch quantity reconciliation. Overseas service infrastructure is limited: no overseas warehouse, showroom, agents or branches, and no stated overseas-service countries. Financial records are referenced for 2022–2024, but the provided information does not establish financial strength. A BV audit is recorded, while the audit type and evaluation result are given only as numeric codes without interpretable certification details.

Supplier typeThe supplier is named Zhejiang Guangming Plastic Machinery Co., Ltd. and classified as a combined company. Its stated business scope covers manufacturing and sales of plastic-processing equipment, plastic products, and mechanical parts, plus technical services.

After-Sales capabilityThe supplier reports written and followed procedures for service capability assessment, corrective and preventive actions, and customer complaints. However, it has no overseas warehouse, showroom, overseas agent or branch, and reports zero countries offering overseas services, limiting verified overseas after-sales coverage.

R&D capabilityThe supplier has four R&D engineers, CAD capability, and design input, output, review, verification, and validation documents available for audit. It provides ODM services, but reports no new products in the past year and no available SDK.

Production capacityThe supplier reports one production line, one quality-control test equipment unit, 21–30 quality-control staff, and an annual production output category. It also reports no ongoing quantity reconciliation for each batch or mass production, which is a documented production-control weakness.

Customization capabilityCustomization is explicitly offered from samples and designs, with R&D engineers assigned to customization from designs. The supplier also provides ODM services and maintains related design documentation, supporting a demonstrated customization capability.

Product Q&A

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

The MOQ is 1 set.

Q:What is the lead time for delivery?

Lead time varies by size and type. For nitriding single screw/barrel, it ranges from 40 to over 70 days depending on diameter. For parallel twin screws, it is 35-60+ days. For conical twin screws, it is 35-60+ days. Bimetallic screws require an additional 5 days.

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

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

Q:Can you customize the materials and hardness?

Yes, customization is available. Options include materials like 38CrMoAla, 40Cr, SKD61, and hardness levels such as HB280-320 for tempering and HV850-1000 for nitriding.

Q:How can I ensure the quality of the product?

We provide test reports for material, heat treatment, and tolerance before shipping. Our factory is ISO9001 certified, and we use advanced CNC and inspection equipment.