What is the warranty period for this product?

The product comes with a 1-year warranty and 1-year after-sales service.

How are the products packaged for export?

Products are packed in wooden cases or treated with anti-rust oil and stretch film to prevent moisture damage.

What types of plastics can this extruder process?

It can process general plastics, ABS, PA, PC, PE, PET, PS, PU, PVC, U-PVC, glass fiber reinforced plastics, and mixed recycled materials.

71mm Bimetallic Screw Barrel for Granulating Extruder Machine

Name: 71mm Bimetallic Screw Barrel for Granulating Extruder Machine
Brand: Nanjing Kairong Machinery Tech. Co., Ltd.
SKU: 900488305

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

US$2,000.00

1 Set

Product profile

Customization

Available

After-sales Service

1 Year

Warranty

1 Year

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

Durable Bimetallic Construction: Features centrifugal casting bimetallic barrel and plasma alloy coating screw for superior wear resistance.

High Precision Hardness: Bimetallic layer hardness reaches HRC 57-72 with nitrided case depth of 0.50-0.80mm.

Self-Cleaning Kneading Design: Computer-aided kneading blocks ensure excellent self-cleaning and reduce overheating risks.

Customizable Screw Elements: Available with various pitches, lengths, kneading block angles, and disk widths to fit specific needs.

Optimized L/D Ratio: Unit structure and screw array can be optimized according to process system and formula requirements.

Efficient Heating and Cooling: Ensures fast, intensive heating via electrical heaters and cooling via internal bore water system.

Comprehensive Warranty: Includes 1-year warranty and 1-year after-sales service for mechanical equipment.

Versatile Material Compatibility: Suitable for general plastics, ABS, PA, PC, PE, PET, PS, PU, PVC, and reinforced 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: ≤3.24h 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.

Product Q&A

Q:What is the production lead time?

Production time is 20-25 days after order placement.

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

Screw shafts use high-performance alloy steels like 40CrNiMoA, while barrels use stainless steel or bimetallic alloys like Fe-based, Ni-based, or Co-based alloys.

Q:Can the screw elements be customized?

Yes, screw elements are available with various pitches, lengths, kneading block angles, and disk widths to meet specific process requirements.

Q:What is the hardness of the bimetallic layer?

The bimetallic layer hardness ranges from HRC 57 to 72.

Q:What payment terms are accepted?

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