Product Description - Twin Screw Extruder Barrel by ZHITIAN

What makes a high-quality twin screw extruder barrel?

When selecting a replacement barrel for your co-rotating twin screw extruder, durability, compatibility, and customization options are key concerns. ZHITIAN's precision-engineered barrels are designed to meet the performance needs of global extrusion lines, with robust liner materials and strict dimensional tolerance control.

Key Features & Advantages

• Custom Sizes & Interface Compatibility
  Available in a wide range of diameters and lengths, supporting modular combinations for various extruder models. Customizable inlet/outlet designs to match OEM interfaces.
• Multiple Liner Alloy Options
  Choose from nitrided steel, bimetallic liners, and premium powder metallurgy alloys (e.g., ZT615A, ZT818) for enhanced wear and corrosion resistance. Alloys are selected based on your processing material and abrasion/corrosion load.
• High Hardness & Wear Resistance
  Liner hardness can reach HRC 58-65 depending on the material. ZT615A alloy lining, for example, provides 2.5-3x the wear life of traditional tool steels such as M2.
• Corrosion Resistance Beyond Stainless Steel
  Nickel-based liner alloys (e.g., ZT610, ZT615A) offer superior resistance to chemical attack, outperforming 304 and 316L stainless steel in harsh environments.
• Precision Machining
  CNC-machined barrel body with strict roundness, coaxiality, and straightness tolerance control. Quality inspected via CMM, ultrasonic testing, and surface finish measurement.

High-Performance Alloy Materials for Extruder Barrel | Zhitian ZT Series

Zhitian has developed its own range of high-performance alloy materials for extruder barrels, optimized for superior wear and corrosion resistance. The company is equipped with advanced production equipment including cold isostatic pressing, vacuum hot-press sintering furnaces, and laser cladding systems. All machining is carried out in temperature-controlled workshops to ensure high precision, enabling us to control key dimensional tolerances of extruder barrels within 0.01 mm.

Zhitian’s ZT Series high-performance alloys include:

• ZT610 Nickel-Copper Alloy
• ZT615 Nickel-Chromium Alloy
• ZT625 Nickel-Based Tungsten Carbide
• ZT715 Nickel-Tungsten/Nickel-Based Tungsten Carbide
• ZT725 Nickel-Based Tungsten Carbide
• ZT735 Nickel-Based Tungsten Carbide
• ZT818 Cobalt-Based Tungsten Carbide

These alloys are manufactured using different technologies:

• ZT6 Series: Produced by hot-press sintering
• ZT7 Series: Applied through laser cladding
• ZT8 Series: Formed using cold isostatic pressing

With strong project management capabilities and years of export experience, Zhitian ensures not only premium materials but also consistent quality and performance for twin screw extruder barrel applications.

Twin Screw Extruder Barrel Manufacturing Process - Step-by-Step Guide

At ZHITIAN, we follow a strict and traceable manufacturing workflow to ensure every twin screw extruder barrel we deliver meets the highest standards of precision, durability, and performance. Here's an overview of our barrel production process:

Typical Applications

• High-output plastic compounding
• Masterbatch and filler production
• Reactive extrusion processes
• Devolatilization and polymer modification

Note: While this product is suitable for well-known extruder systems , we do not list brand names due to confidentiality agreements.

Specifications

Parameter	Range / Option
Screw Diameter Range	20mm - 400mm
Liner Materials	Nitrided steel, Bimetallic, ZT615A, etc.
Barrel Structure	Single or multi-piece, closed/open
Tolerance	≤ 0.02mm
Heat Treatment	Gas nitriding, Vacuum quenching
Surface Hardness	HRC 58-65 (liner)

FAQ - Frequently Asked Questions

Q1: Can I replace the barrel without changing the screw?

Yes. As long as the interface and wear zones match, our barrels are compatible with your existing screws.

Q2: What liner alloy is best for abrasive materials?

ZT615A or ZT818 is highly recommended due to their excellent wear and corrosion resistance.

Q3: How long does a barrel typically last?

With premium alloys and standard maintenance, barrel lifespan can exceed 2-3 years in high-wear environments.

Q4: Can you customize for my European extruder?

Absolutely. We have rich export experience and drawings for many EU brands (without naming them due to NDAs).

Specializing in the production of twin-screw extruder parts

Zhitian, a high-tech enterprise and Jiangsu Province-certified Specialized, Refined, Distinctive, and Innovative (SRDI) company, has specialized in twin-screw extruder parts for over two decades. With two production bases in Nanjing Zhitian and Anhui Zhitian New Materials covering over 13,000 square meters and employing over 100 staff, we adhere to the management philosophy: "Guided by customer needs to drive enterprise development; rooted in dedicated employees to forge the company's future."

As a renowned manufacturer in twin-screw extruder parts, we provide:

• High-performance alloy material solutions for screw barrels (nickel-based alloys, cobalt-based alloys, etc.)
• Professional design and manufacturing of key parts including screw barrels, gearboxes, screw elements, and shafts
• Comprehensive services encompassing repair, sample mapping and processing, and custom manufacturing according to requirements

Our solutions serve multiple industries including plastics & rubber, battery materials, and food & feed processing.

With global operations spanning Americas, Europe, Middle East, Africa, East Asia and Southeast Asia, Zhitian maintains strategic partnerships with world-leading extruder manufacturers including Coperion, KraussMaffei, Leistritz, Bühler, CPM, and Jwell. Supported by robust technical capabilities, advanced processing equipment, sophisticated production techniques, and stringent quality control systems, we deliver premium products that have earned widespread acclaim from global customers.