China Twin Screw Extruder Screw Elements Manufacturer

Kneading Screw Elements for Intensive Shearing and Mixing

SNE kneading screw elements are specifically designed for high-shear applications in twin screw extruders.
These elements provide efficient dispersive mixing and controlled shear intensity, making them ideal for compounding polymers with fillers, additives, and tough materials.
With customizable disk angles and configurations, SNE kneading blocks deliver consistent performance in demanding extrusion processes.

Processing characteristics and advantages

All screw element materials are checked by metal analyzer to ensure the quality of raw materials;
100% of the internal splines are checked by spline plug gauge to ensure the interchangeability of screw elements;
All screw elements are finished by CNC grinding after heating, the shape error is controlled within ±0.015, the kneading block sheet spacing and sheet thickness tolerance are controlled within ±0.03, the length tolerance is controlled within ±0.01, and the surface roughness of the outer shape is ≤Ra0.8, completely eliminating the influence of heat treatment deformation on component quality;
Using European HIP process to produce powder high speed steel, and strictly following the customer’s heat treatment process.

Still looking for the perfect solution?

With rich industry experience and strong customization capabilities, we're here to support your needs. Contact us now for a quote or technical consultation!

Screw Element Material

The screw elements are the core components of the twin screw extruder and are crucial for plastic processing. The design and material of these components directly affect the quality of the plastic products and the efficiency of the entire production line.

Our company will recommend screw elements of different materials according to the process requirements of different customers.

Nitriding steel 38CrMoAla
Cr12MoV
High speed tool steel W6Mo5Cr4V2
Stainless steel SUS304, SUS316, SUS316L, etc.
Nickel based alloy
Imported HIP powder metallurgy: WR5, WR13, WR14, etc.

Nitriding steel 38CrMoAla

Nitriding steel 38CrMoAla is a high-grade alloy structural steel that is alloyed by adding nitrogen (N) elements to improve its mechanical properties and corrosion resistance.

High-speed tool steel W6Mo5Cr4V2

High-speed tool steel W6Mo5Cr4V2 is an alloy steel commonly used to make high-performance cutting tools and molds.

Hastelloy alloy

Excellent corrosion resistance and long-term economic benefits make it the material of choice for many high-end applications.

Stainless steel SUS304, SUS316, SUS316L, etc.

Stainless steel is an ideal choice for applications that require high corrosion resistance, such as food processing or the chemical industry. It is resistant to erosion by moisture, chemicals and other corrosive factors.

Nickel based alloy

With excellent high temperature performance, corrosion resistance and strength, it is widely used in many industrial fields.

Imported HIP powder metallurgy: WR5, WR13, WR14, etc.

Imported HIP powder metallurgy is an ultra-high corrosion resistance, high wear resistance, high torque, and anti-cracking material that can meet the needs of high-end extruder screw elements.