What is the L/D ratio of the screw?

The L/D ratio ranges from 12 to 18.

Do you offer OEM and ODM services?

Yes, we offer both OEM and ODM services with support from our R&D team.

What is the surface roughness of the screw?

The surface roughness is Ra0.4.

Rubber Screw and Cylinder for Extruder Machine Screw Barrel

Name: Rubber Screw and Cylinder for Extruder Machine Screw Barrel
Brand: Zhejiang Zhongyang Screw Manufacturing Co., Ltd.
SKU: 697622655

Zhejiang, ChinaZhejiang Zhongyang Screw Manufacturing Co., Ltd.

US$1,000.00-50,000.00

1 Set

Product profile

Customization

Available

Certification

ISO

Color

Fixed

Model NO.

ZYSCREW

Customized

Standard

National

Type

Connection

Material

Alloy Steel

Screw Barrel

Rubber for Extruder Machine Screw Barrel

Nitrided Layer Depth

0.5-0.8mm

Nitrided Hardness

900-1000hv

Nitrided Brittleness

Less Than Grade 1

Surface Roughness

Ra0.4

Linearity of Screw

0.015mm

Warranty and Service

1 Year

Transport Package

Slushing Oil Coated& Film Wrapped in Wooden Case

Specification

ISO9001: 2008 approved

Trademark

ZHONGYANG

Origin

Zhoushan, China

HS Code

84779000

Production Capacity

200 Sets/Month

Key features

Wide Diameter Range: Pin screw diameter from 75mm to 200mm; Cold/Hot feed from 30mm to 300mm.

Premium Material Options: Available in 38CrMoAlA, 42CrMo, 4Cr5MoSiV1, 9Cr18MOV, and various bimetallic alloys.

Precision Nitriding Treatment: Nitrided layer depth 0.5-0.8mm with hardness 900-1000HV and brittleness under Grade 1.

High Surface Quality: Surface roughness Ra0.4 and screw linearity of 0.015mm for optimal performance.

Comprehensive Warranty: 1-year warranty and service coverage included with every unit.

Customized Manufacturing: Full customization available for screw barrel specifications and nitriding parameters.

Rapid Delivery: Fast production and delivery with one-month lead time in both peak and off-peak seasons.

OEM and ODM Services: Full OEM and ODM support available with 2 dedicated R&D engineers.

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: ≤18h 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 is the warranty period for this product?

We provide a 1-year warranty and service for the rubber screw and cylinder.

Q:What materials are used for the screw and barrel?

Base materials include 38CrMoAlA, 42CrMo, 4Cr5MoSiV1, and 9Cr18MOV. Bimetallic options include Fe-based, Ni-based, Co-based, NiCo-based alloys, and tungsten carbide.

Q:What is the nitriding hardness of the screw?

The nitrided hardness ranges from 900 to 1000HV.

Q:Can the product be customized?

Yes, the product is fully customized, including screw barrel type and nitriding parameters.

Q:What is the lead time for production?

The average lead time is one month, regardless of peak or off-peak seasons.