What is the surface roughness of the screw?

The surface roughness is controlled at Ra0.4.

Single Screw and Barrel for Film Extruder

Name: Single Screw and Barrel for Film Extruder
Brand: Zhejiang Zhongyang Screw Manufacturing Co., Ltd.
SKU: 736332695

Zhejiang, ChinaZhejiang Zhongyang Screw Manufacturing Co., Ltd.

US$1,000.00-50,000.00

1 Set

Product profile

Customization

Available

Screw Barrel

Single Screw and Barrel for Film Extruder

Nitrided Layer Depth

0.5-0.8mm

Model NO.

Dia15-300mm

Nitrided Hardness

900-1000hv

Nitrided Brittleness

Less Than Grade 1

Surface Roughness

Ra0.4

Linearity of Screw

0.015mm

Transport Package

Wooden Cases

Specification

ISO9001: 2008

Trademark

Zhongyang

Origin

Zhejiang of China

HS Code

84779000

Production Capacity

200 Sets/Month

Key features

Nitrided Hardness: High hardness of 900-1000HV with brittleness less than grade 1.

Material Options: Available in 38CrMoAlA, 42CrMo, and bimetallic alloys like Deloro.

Precision Linearity: Screw linearity controlled within 0.015mm for high performance.

Surface Roughness: Surface roughness maintained at Ra0.4 for optimal extrusion.

Customizable Design: Screw types include general, pin, barrier, separation, and gas-exhausting.

L/D Ratio Flexibility: Length-to-diameter ratio adjustable from 15 to 46.

1-Year Warranty: Comprehensive 1-year warranty coverage for product assurance.

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 materials are available for the screw and barrel?

Base materials include 38CrMoAlA, 42CrMo, 4Cr5MoSiV1, 9Cr18MOV, and HPT. Bimetallic options include Fe-based, Ni-based/Deloro, Co-based, NiCo-based, and Tungsten carbide.

Q:What is the nitrided hardness and layer depth?

The nitrided layer depth is 0.5-0.8mm, with a hardness of 900-1000HV and brittleness less than grade 1.

Q:Can the screw type be customized?

Yes, screws can be chosen from general type, pin type, barrier type, separation type, and gas-exhausting type based on different plastic products.

Q:What is the warranty period for this product?

We provide a 1-year warranty for the Single Screw and Barrel for Film Extruder.

Q:Do you offer OEM or ODM services?

Yes, both OEM and ODM services are available for our screw and barrel products.