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Haisi New Promotion Twin Screw and Barrel for Plastic Extruder

Updated 2026-11-04 · Markdown version

US$2,400 / set

MOQ 1 set · Final price confirmed in your quote

Material: Stainless Steel
Nitrided hardness: HV850-1020 (HRC57-65)
Chromium-plating layer depth: 0.05-0.10mm
Chromium-plating layer hardness: more than 950HV
Bimetallic layer hardness: HRC 57-72

Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order.

Specifications

Customization	Available
Technics	Casting
Feature	Wear Resistant
Material	Stainless Steel
Application	for Extruder
Transport Package	Wooden Cases
Specification	as require
Origin	Jiangsu
Production Capacity	3000 Sets Per Year
Barrel sections are available as	Closed barrel section
Screw Elements	High-speed steel W6Mo5Cr4V2, nitrogen treatment.
Screw Shaft	High performance alloy steels, 40CrNiMoA; With standing high load, Etc
Package	Wooden case or Using Anti-rust oil processing, then use stretch film cover extruder against moisture damage.
Shipping	By sea or By express
Our machine types	1. Co-Rotating Parallel Twin Screw Pelletizing Extruders
Nitrided case depth	0.50-0.80mm
Nitrided hardness	HV850-1020 (HRC57-65)
Chromium-plating layer depth	0.05-0.10mm
Chromium-plating layer hardness	more than 950HV
Bimetallic barrel	centrifugal casting (Inlay alloy)
Bimetallic screw	plasma alloy coating spraying
Bimetallic layer depth	0.8-2.0mm
Bimetallic layer hardness	HRC 57-72
Means of transport	Ocean, Air, Express
Production time	20-25 days after order
Category	Other Machine & Custom Screws

Technical parameters

Base Material	1) 38CrMoAlA(JIS SACM645) 2)Cr12MOV(JIS SKD-11) 3) 4Cr5MoSiV1(JIS SKD-61) 4) 42CrMo(AISI 4140)
Bimetallic Alloy Material	1)Fe-based alloy 2)Ni-based alloy/Deloro alloy 3)Co-based alloy 4)NiCo-based alloy 5)Tungsten carbide/Wolfram carbide
Surface Treatment
1.Heat treatment	2.High frequency treatment
3.Nitriding treatment	Nitrided case depth: 0.50-0.80mm
Nitrided hardness: HV850-1020 (HRC57-65)
4.Hard chrome plating treatment	Chromium-plating layer depth: 0.05-0.10mm
Chromium-plating layer hardness: more than 950HV
5Nickel alloy plating treatment	Bimetallic barrel: centrifugal casting (Inlay alloy)
Bimetallic screw: plasma alloy coating spraying
Bimetallic layer depth: 0.8-2.0mm
Bimetallic layer hardness: HRC 57-72
Basic Information
Nitride Brittleness	≤Grade Two
Surface Roughness	Ra0.4um
Screw Straightness	0.015mm
Hardness after hardening and tempering	0.025~0.10mm
Material Application	1)General plastics
2)ABS,PA,PC,PE,PET,PS,PU,PVC,U-PVC
3) PA+GF (Glass Fiber)
4)Flame-resistant reinforced plastics
5)Modified engineering plastics
6)All kinds of mixed recycled materials
General Terms	Means of transport: Ocean, Air, Express
Production time: 20-25 days after order

Description

Haisi New Promotion Twin Screw and Barrel for Plastic Extruder is part of our other machine & custom screws range (Screws).

Key details

Material: Stainless Steel
Application: for Extruder
Technics: Casting
Feature: Wear Resistant
Barrel sections are available as: Closed barrel section
Screw Elements: High-speed steel W6Mo5Cr4V2, nitrogen treatment.
Our machine types: 1. Co-Rotating Parallel Twin Screw Pelletizing Extruders
Nitrided case depth: 0.50-0.80mm

Available configurations include material, nitrided hardness, chromium-plating layer depth, chromium-plating layer hardness and bimetallic layer hardness. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 1 set at US$2,400 per set. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you.

Frequently asked questions

What is the minimum order quantity (MOQ) for Haisi New Promotion Twin Screw and Barrel for Plastic Extruder?

The listed minimum order is 1 set, at US$2,400 per set. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

What are the main specifications of Haisi New Promotion Twin Screw and Barrel for Plastic Extruder?

Material: Stainless Steel; Application: for Extruder; Technics: Casting; Feature: Wear Resistant; Barrel sections are available as: Closed barrel section; Screw Elements: High-speed steel W6Mo5Cr4V2, nitrogen treatment.. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include material, nitrided hardness, chromium-plating layer depth, chromium-plating layer hardness and bimetallic layer hardness. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing.

What is the lead time and how is it shipped?

Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment.

Which other other machine & custom screws are available?

The Other Machine & Custom Screws category lists 14,058 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/other-machine-custom-screws/

How we work

Specified, checked and shipped by Engineering Hardware & Fasteners

Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing.

DIN, ISO, ASTM, ANSI, JIS and GB standard parts
Non-standard parts made to your drawing
Dimensions, thread gauges and plating checked before packing
Export cartons and pallets, consolidated mixed orders
Samples available for approval before mass production

More about us → · Request a sample or custom quote →

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US$2,400MOQ 1 setGet a quote WA