What is the hardness of the nitriding layer?

The nitriding hardness is HV850-1000, with a layer depth of 0.45-0.7mm and brittleness at Grade II.

Customized Nitride Cylinder Screw Bimetallic Screw Barrel for Injection Molding Machine

Name: Customized Nitride Cylinder Screw Bimetallic Screw Barrel for Injection Molding Machine
Brand: Zhejiang Guangming Plastics Machinery Co., Ltd.
SKU: 2250879465

Zhejiang, ChinaZhejiang Guangming Plastics Machinery Co., Ltd.

US$400.00

1-4 Sets

US$300.00

5+ Sets

Product specifications

size

Sample price:US$50.00/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 Case

Specification

Screw Diameter 20~300MM

Trademark

GUANG YOU SCREW

Origin

Zhejiang, China

HS Code

847790

Production Capacity

18000sets/Year

Key features

Bimetallic Wear Resistance: Cast 2-5mm wear-resistant alloy layer on inner wall for extended lifespan.

High Hardness Nitriding: Nitriding hardness reaches HV850-1000 with layer depth of 0.45-0.7mm.

Custom Material Options: Available materials include 38CrMoAl, SKD61, D2, and various alloy steels.

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

OEM/ODM Customization: Full customization services for design, branding, and specific technical parameters.

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

Global Technical Support: 48-hour response time with on-site support and reverse engineering capabilities.

Wide Product Range: Covers single, parallel twin, conical twin screws, and bimetallic barrels.

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: ≤18h

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.