Twin Screw Extruder Parts

27/04/2026

Anti-corrosion and anti-wear Extruder parts screw elements, barrel, liner and shaft

14/04/2026

How to Select Extruder Components for PA66 at 50%–70% High Filling Levels
When PA66 glass fiber content rises from 50% to 70%, the process shifts from melt-dominated mixing to a fiber-dominated structure where resin only acts as a wetting phase. At this stage, stability depends mainly on extruder screw elements, extruder shaft, and extruder barrel, rather than formulation.

Low-Shear Screw Element Design
High shear is no longer suitable in 70% glass fiber systems, as it causes fiber breakage and torque spikes. Extruder screw elements should use low-shear, high-distribution structures such as toothed mixing elements (ZME/SME) to achieve flow splitting and “penetration wetting” instead of aggressive dispersion.

Feeding Strategy
Resin must be fully melted before fiber addition, and glass fiber should be introduced in stages (e.g., 35% + 35%) to avoid overloading. This requires stable conveying and controlled throughput from the screw configuration.

Shaft and Barrel Requirements
Under low-speed, high-torque conditions, the extruder shaft must provide high rigidity and fatigue resistance to avoid deformation and misalignment. The extruder barrel must withstand severe abrasive wear, typically requiring bimetallic or Ni60 liners with hardness above HRC58.

Venting Design
High fiber content brings air and powder, so venting must use reverse screw elements for sealing and deep-channel designs for efficient gas release without disturbing flow stability.

Conclusion
Processing 70% glass fiber PA66 is a full equipment challenge. Only when low-shear screw elements, high-torque shafts, and high-wear barrels are properly matched can stable and continuous high-fiber extrusion be achieved.

08/04/2026

Inside our workshop: the complete manufacturing process of extruder barrels.
Every step controlled for precision & durability.
Stable performance, longer service life for your extrusion line.

31/03/2026

High-precision bushings for stable performance and extended service life.
Engineered for demanding industrial applications

25/03/2026

Stop replacing worn parts!
Our twin screw barrel solves your challenges!
✔️ No metal contamination (battery grade)
✔️ Wear-resistant for glass fiber & flame retardant
✔️ Consistent mixing performance
✔️ Lower maintenance cost
Upgrade now for better output!

25/03/2026

Choosing the Right Twin Screw Extruder Parts for High-Demand Industries: A Buyer's Guide

For procurement professionals, sourcing the right twin screw extruder parts is key to operational efficiency and product quality. As industries advance, extrusion equipment faces harsher demands—from modified plastics to lithium battery mixing—creating a urgent need for high-performance spare parts. This guide outlines how advanced materials and processes solve industry pain points, cut downtime, and lower maintenance costs.

Industry-Specific Challenges

Key sector requirements for extruder parts:

✅Modified plastics: Resist wear/corrosion from glass fiber and flame-retardant materials.
✅Lithium battery: Absolute purity to avoid metal contamination affecting performance.
✅ Food/pharmaceutical: Hygiene and self-cleaning to prevent contamination.
✅ Chemical/powder coating: Withstand harsh chemicals and high torque without cracking.

Solution: BLM60 Alloy & Deposition Cladding

Standard nitrided steel is inadequate. Bloom (Suzhou) Materials, a 20-year alloy expert, developed OS60 (BLM60) alloy—an ultra-fine grain material outperforming traditional nickel-based alloys for harsh conditions.

Its exclusive deposition cladding adds a 2mm wear/corrosion-resistant Ni60 coating. Rapid cooling refines grains, achieving HRC 58–62 hardness (surpassing vacuum/laser cladding) and doubling wear resistance.

Call to Action

Prioritize total ownership cost over initial price. Partner with a custom, high-precision manufacturer for optimal performance.

Act Now: DM us for a free quote and catalog! Upgrade with BLM60 parts to boost efficiency and cut costs—contact our team today.

24/03/2026

Every liner. Every test. Every time.

Before shipment, our extrusion liners undergo rigorous inspection to guarantee precision, durability, and reliability.

From raw material processing to final machining, we manufacture components designed to meet our customers’ exact requirements.

Built for wear resistance. Engineered for performance.

🌐 https://www.materialalloy.com/

20/03/2026

Our twin screw barrel is built to last!

✔️ High precision machining
✔️ Wear & corrosion resistance
✔️ Stable performance
✔️ Long working lifeUpgrade your extruder efficiency today!

20/03/2026

Why settle for less when you can have the best?

At BLOOM, we didn’t just improve cladding—we revolutionized it.While others struggle with vacuum sintering’s narrow temperature window and laser cladding’s instability, our OS60 deposition cla

🔹 Denser coating structure, no cracking, no peeling
🔹 Ultra-fine, uniform grain structure for unmatched stability
🔹 290% higher wear resistance & 410% higher corrosion resistance than WR13
🔹 Engineered for the toughest twin-screw extruder applications

Your extruder deserves the longest-lasting, most reliable protection. Choose BLOOM, choose excellence.

19/03/2026

We specialize in high-wear-resistant extruder components for parallel twin-screw lines, particularly for PPS+SrFe magnetic composites processed at 300–400°C — a process known for extreme abrasion. We improved the normal processing technique and choose suitable material to make our extruder parts more wear-resistant and anti-corrosion than others.
You can see from the table, the OS60 (BLM60) bushing processed by deposition cladding has a denser structure and is more wear-resistant and corrosion-resistant.
I am looking forward to having a chance to improve your production efficiency.

10/03/2026