What is the hardness of the bimetallic layer?

The bimetallic layer hardness ranges from HRC 57 to 72, with a depth of 0.8-2.0mm.

Do you offer OEM and ODM services?

Yes, we provide both OEM and ODM services for twin screw extruders and spare parts.

What is the payment term?

We accept LC (Letter of Credit) and T/T (Telegraphic Transfer) as payment terms.

Kairong Group Twin Screw Extruder Screw Elements

Name: Kairong Group Twin Screw Extruder Screw Elements
Brand: Nanjing Kairong Machinery Tech. Co., Ltd.
SKU: 1943161305

Jiangsu, ChinaNanjing Kairong Machinery Tech. Co., Ltd.

US$2,000.00

1 Set

Product profile

Customization

Available

Technics

Casting

Feature

Wear Resistant

Material

Stainless Steel

Application

for Extruder

Transport Package

Wooden Cases

Specification

as require

Trademark

Origin

Jiangsu

Production Capacity

3000 Sets Per Year

Key features

High Wear Resistance: Made of W6Mo5Cr4V2 high-speed steel with nitrogen treatment for durability.

Modular Design: Flexible screw barrel sections with various pitches, lengths, and kneading blocks.

Self-Cleaning Function: Intermeshing co-rotating screws with narrow clearance prevent residue buildup.

Customizable L/D Ratio: Optimizable barrel structure and screw array based on process requirements.

Bimetallic Construction: Available with Fe-based, Ni-based, or Co-based alloys for enhanced hardness.

Precision Hardness: Nitrided hardness up to HRC 65; bimetallic layer hardness HRC 57-72.

Efficient Heating & Cooling: Electrical heaters ensure fast heating; internal bore system enables water cooling.

Wide Material Compatibility: Suitable for ABS, PA, PC, PE, PET, PVC, glass fiber, and recycled materials.

Company profile

Nanjing Kairong Machinery Tech. Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2015-09-01 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤3.47h CertifiedTerms of Payment: LC, T/T

AI-Powered supplier vetting

SummaryNanjing Kairong Machinery Tech. Co., Ltd. is identified as a China-based limited company and trade company engaged in manufacturing and processing machinery, particularly extruders and plastic recycling equipment. The supplier reports 200 twin screw extruders of annual output, five production lines, and 6–10 quality-control staff. It describes design, manufacturing, commissioning, packing, and after-sales capabilities, and states that it provides whole-plant and turnkey solutions. Export activity began in 2015, with 41%–50% of sales reportedly from exports, and customer locations are listed across several countries. However, the evidence does not establish any certifications, provides only limited direct customer-case detail, and indicates just one total R&D engineer. The supplier’s legal identity, operating location, product scope, and production information are documented, but several capability areas remain only partially evidenced.

Supplier typeThe supplier is identified as Nanjing Kairong Machinery Tech. Co., Ltd., a China-based limited company with a combined business entity type. It is described as a trade company, while its commercial engagement is manufacturing and processing machinery, indicating a mixed trading and machinery-supply profile.

After-Sales capabilityThe supplier explicitly states that it provides after-sales service and has aftersales staff, while also describing service as a quality objective. These statements support the existence of an after-sales function, although no staffing detail, response standard, or service performance evidence is provided.

Production capacityThe supplier reports annual production of 200 twin screw extruder sets, operates five production lines, and has 6–10 quality-control staff. A stated factory location and manufacturing plant area further support production activity, although the reported workforce size is small and capacity details are limited to the listed product output.

Customization capabilityThe supplier states that it develops new designs and offers solutions designed to meet different customer requirements, including whole-plant and turnkey solutions. This directly supports customization and project-solution capability, though no specific customized project examples or technical scope are supplied.