How do you ensure product quality?

We use first-class steel, check every production procedure for precision, and execute a final complete inspection before dispatch.

What is the packaging method for the products?

We use strong plywood or wooden cases for all our products to ensure safe transport.

Do you provide technical support in English?

Yes, our sales team is trained daily and ready to answer questions and offer solutions in fluent English at any time.

2 Flighted Screw Elements for Twin Screw Extruder Plastic Machine

Name: 2 Flighted Screw Elements for Twin Screw Extruder Plastic Machine
Brand: E.J.S. Industry Co., Ltd.
SKU: 936418995

Zhejiang, ChinaE.J.S. Industry Co., Ltd.

US$1,997.00-3,100.00

1 Piece

Sample price:US$598.00/piece.Request sample

Product profile

Customization

Available

Standard

DIN, ASTM, GOST, GB, JIS, ANSI, ISO

Technics

Milling-Drilling-Grinding-Polishing

Material

Tool Steel, Structural & Engineering Steel etc.

Base Material

1.8509, 1.8550, 1.8519, 4140, 5140, 45

Surface Treatment

Bimetallic, Nitriding, Through-Hardened, Chrome-Pl

Hardness for Nitriding

>Hv900

Hardness for Bimetallic

HRC50~70 Depending on Different Alloys

Thickness of Nitriding Layer

0.4~0.7mm

Thickness of Bimetallic

1.5~3.0mm Depending on Different Alloy Coating

Alloy Type

Ni60, Colmonoy 56, Colmonoy 83, Tungsten Alloy

Application

Plastic Extrusion Machines

Transport Package

Export Packaging

Specification

Screw Diameter from 15.6mm to 250mm

Trademark

EJS or Customized

Origin

China

HS Code

847790

Production Capacity

30000PCS/Year

Key features

Wide Material Selection: Includes 42CrMo, 38CrMoAlA, 31CrMoV9, SS304, SKD11, and more. Other materials available upon request.

Advanced Surface Treatments: Offers nitriding, hard chrome-plating, bimetallic coating, and through-hardening for enhanced durability.

Customizable Dimensions: Workable length ranges from 700mm to 3000mm, with any length needed for bimetallic screws.

High Hardness Options: Nitriding hardness >Hv900; Bimetallic hardness HRC 43-65 depending on alloy type.

Multiple Alloy Types: Available in Ni60, Colmonoy 56, Colmonoy 83, and Tungsten Alloy for specific wear resistance.

Precision Quality Control: First-class steel used with full inspection of every dimension before dispatch.

Versatile Application: Suitable for single screw, twin parallel screw, and twin conical screw extrusion machines.

Comprehensive Service: Includes before-sales, production updates, and after-sales support with fluent English communication.

Company profile

E.J.S. Industry Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/Factory, Trading Company, Group CorporationExport Year: 2006-10-04Nearest Port: Ningbo, ShanghaiAverage Response Time: ≤6.55hTerms of Payment: T/T, D/P, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, FAS, DDP, DAP, CIP, FCA, EXW

AI-Powered supplier vetting

SummaryE.J.S. Industry Co., Ltd. is a China-based limited company in Zhejiang, with trading, manufacturing/factory, and group-corporation classifications. Its primary products are screw barrels and related extrusion, injection-molding, and rubber-processing components. The supplier reports ISO 9000 and ISO 9001 management-system certifications, more than 10 production lines, 6–10 quality-control staff, and 6–10 years of total R&D-engineer experience. It exports through agents and its own import-export rights, serving multiple regions. The supplier also describes a large production area, over 400 workers, more than 300 pieces of equipment, and customized services. However, the provided information does not establish current after-sales service capability, innovation outputs, financial credibility, or documented customer cases. The SGS audit record is time-limited and shows an evaluation result of 0, but the meaning of that result is not defined in the provided data.

Supplier typeThe supplier is identified as a trading company in the company basic information, while another record classifies it as a Trading Company, Manufacturer/Factory, and Group Corporation. Its products and manufacturing-machinery trade engagement are specifically related to screw barrels and associated components. This supports classifying it as a trading and manufacturing-oriented supplier, although the records are not fully consistent regarding the principal entity type.

CertificationsThe supplier reports ISO 9000 and ISO 9001 management-system certifications. An SGS audit record is also provided, with a stated report period from August 5, 2024 to August 4, 2025; however, the audit result is recorded as 0 and its interpretation is not explained. The certifications provide explicit positive evidence, but current validity beyond the stated audit period is not established.

Production capacityThe supplier reports more than 10 production lines, 6–10 quality-control staff, a factory in Zhoushan, and primary export markets across several regions. Its company description additionally states a production area of up to 40,000 square meters, more than 400 full-time workers, and over 300 domestic and imported equipment units. These stated facilities, workforce, equipment, and production-line indicators provide explicit evidence of substantial production capability.

Customization capabilityThe product range includes multiple screw-barrel configurations, including twin-screw, extrusion, injection-molding, rubber, bimetallic, and single-screw products, as well as screw elements and feed-housing barrels. The supplier also explicitly advertises customized VIP services. This directly supports an ability to provide customized product solutions, although the scope and technical limits of customization are not specified.

Product Q&A

Q:What base materials are available for the screw elements?

Common materials include 42CrMo, 38CrMoAlA, 31CrMoV9, 34CrAlNi7, 40Cr, 45Steel, SS304, SS416, SKD11, and SKD61. Other materials are possible upon contact.

Q:What surface treatment options do you offer?

We provide quenching & tempering, nitriding, hard chrome-plating, bimetallic alloy coating, and through-hardening.

Q:Can the screw length be customized?

Yes, the workable length ranges from 700mm to 3000mm per piece, and any length is needed for bimetallic screws.

Q:What is the hardness of the bimetallic coating?

Hardness varies by alloy: HRC 58-65 for EJS01, HRC 50-58 for EJS02, HRC 55-60 for EJS03, and HRC 55-65 for EJS04.

Q:Which screw types are compatible with these elements?

They are suitable for single screw, twin parallel screw, and twin conical screw applications.