What are the technical parameters for nitriding?

The nitrided layer depth is 0.5-0.8mm, hardness is 900-1000HV, brittleness is less than grade 1, and surface roughness is Ra0.4.

What is the lead time for production?

The average lead time is one month for both peak season and off-season.

Do you offer OEM and ODM services?

Yes, we provide both OEM and ODM services to meet specific customer needs.

Conical Twin Screw Barrel for PVC Pipe Extrusion Screw Barrel Double Screws

Name: Conical Twin Screw Barrel for PVC Pipe Extrusion Screw Barrel Double Screws
Brand: Zhejiang Zhongyang Screw Manufacturing Co., Ltd.
SKU: 697647675

Zhejiang, ChinaZhejiang Zhongyang Screw Manufacturing Co., Ltd.

US$1,000.00-50,000.00

1 Set

Product profile

Customization

Available

After-sales Service

Yes

Warranty

12 Months

Model NO.

Conical Twin Screw Barrel

Type

Profile Extruder

Plastic Processed

PVC

Product Type

Extrusion Molding Machine

Feeding Mode

One Feed

Screw

Twin-Screw

Engagement System

Full Intermeshing

Screw Channel Structure

Deep Screw

Exhaust

Don't Exhaust

Automation

Automatic

Computerized

Transport Package

Wooden Cases

Specification

ISO9001: 2008

Trademark

Zhongyang

Origin

China(Mainland)

HS Code

84779000

Production Capacity

200 Sets/Month

Key features

Customizable Specifications: Standard sizes available with full customization for customer requirements.

Premium Base Materials: Constructed from 38CrMoAlA, 42CrMo, SKD-61, and other high-grade steels.

Advanced Alloy Options: Available with Ni-based, Fe-based, Co-based alloys, and Tungsten carbide.

High Hardness Treatment: Nitrided hardness reaches 900-1000HV with surface roughness Ra0.4.

Precision Engineering: Screw linearity controlled within 0.015mm for optimal extrusion performance.

1-Year Warranty: Comprehensive 12-month warranty coverage for peace of mind.

Professional OEM/ODM: Custom manufacturing based on specific product and ingredient needs.

Expert Technical Support: Dedicated teams for design, production, and after-sales service.

Company profile

Zhejiang Zhongyang Screw Manufacturing Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedNearest Port: Ningbo PortAverage Response Time: >24h CertifiedTerms of Payment: LC, T/T CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR

AI-Powered supplier vetting

SummaryZhejiang Zhongyang Screw Manufacturing Co., Ltd. is presented as a China-based manufacturer and distributor of screws, barrels, and related assembly parts for plastic and rubber machinery. The supplier reports 12 years of industrial experience, a factory equipped with advanced CNC machines, more than 10 production lines, 50 quality-control staff, and exports to South America, Southeast Asia/Mideast, and Europe. It describes an ISO-certified quality system established in 2006 and offers design, technical support, customer service, and overseas engineering assistance. However, the records contain material inconsistencies regarding factory size, workforce, business type, and R&D staffing. No verifiable customer cases or detailed financial-strength evidence is provided.

Supplier typeThe supplier is legally identified as Zhejiang Zhongyang Screw Manufacturing Co., Ltd., a China-based limited company. Its stated business is designing, manufacturing, rebuilding, and distributing screws, barrels, and assembly parts, although one record labels the company nature as a trading company, creating a classification inconsistency.

CertificationsThe supplier explicitly states that it has been an ISO-certified enterprise since 2006 and that it operates a complete quality-control system covering production through final products. The specific ISO standard and certificate details are not provided.

After-Sales capabilityThe supplier describes a dedicated after-sales team, customer archiving and follow-up through product receipt and trial, efficient problem resolution, and the ability to send engineers to customer locations in China or abroad when necessary. These statements support an established service capability, though no service performance metrics are supplied.

R&D capabilityThe supplier reports professional design teams and experienced, creative engineers who address technical problems and design new screws and barrels for performance improvement. However, the records provide no quantified R&D resources, patents, new-product results, or development timeline.

Production capacityThe supplier reports a 10,000 m² factory with advanced CNC equipment, more than 10 production lines, 50 quality-control staff, and a one-month off-peak lead time. Other records state a 5,000 m² plant and alternatively more than 50,000 m² with over 200 workers, so capacity is indicated but the scale data is inconsistent.

Customization capabilityThe supplier states that it maintains sales, design, production, inspection, and service teams, supports specific customer needs, and designs new screw and barrel configurations to achieve targeted performance. This directly supports customization capability, although no examples, engineering specifications, or limits are given.

Product Q&A

Q:What are the standard specifications available?

Standard specifications include 35/76, 45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132, 68/143, 70/135, 70/140, 75/150, 80/143, 80/156, 92/188, 95/191, 105/191, and 100/200.

Q:Can the screw barrel be customized?

Yes, we can customize specifications, compression ratios, and designs according to specific customer requirements and different product ingredients.

Q:What base materials are used for the barrel?

Main base materials include 38CrMoAlA (Nitriding Steel), SKD-61 (Special Tool Steel), 42CrMo (Ultrahigh Strength Steel), DC53, and W6Mo5Cr4V2.

Q:What alloy materials are available?

Available bimetallic alloy materials include Fe-based alloy, Ni-based alloy/Deloro alloy, Co-based alloy, NiCo-based alloy, and Tungsten carbide/Wolfram carbide.

Q:What is the warranty period?

We provide a 1-year warranty for our products.