Ø18–400 mm full range coverage
10,000+ proven element configurations
10+ powder metallurgy technologies
fast delivery for small batches
Stable mass production for Ø100+ mm elements
Key Points
Precise control of shear and residence time
Optimized for dispersive and distributive mixing
Customizable stagger angle and disc width
Kneading elements are essential components in co-rotating twin screw extruders, primarily used for material plastication and mixing, including both dispersive and distributive mixing.
Unlike conveying elements, kneading blocks are designed to control:
Shear intensity
Residence time
Material distribution
Fill level
Their performance is determined by stagger angle and disc width, which directly influence mixing efficiency and processing stability.
The performance of kneading elements depends on:
Stagger angle (30°, 45°, 60°, 90°)
Disc width (narrow, standard, wide)
Number of discs
Arrangement sequence
Residence time and fill level
A proper configuration directly affects mixing quality, dispersion efficiency and final product performance.
Plastic compounding
Color and filler masterbatch
Engineering plastics
Recycling and reprocessing
Flame retardant compounds
High filler formulations
Our engineering team can recommend the best conveying element geometry based on your material, throughput and extruder model.
Forward kneading elements provide a balance between conveying and mixing, with adjustable shear depending on stagger angle and disc width.
Best suited for:
Plastication zones
General compounding
Controlled mixing processes
Reverse kneading elements introduce backflow and pressure build-up, increasing residence time and enhancing mixing intensity.
Best suited for:
Before venting zones
Degassing preparation
High mixing demand sections
Neutral kneading elements provide strong mixing with minimal conveying effect, ensuring stable residence time and high mixing efficiency.
Best suited for:
High mixing zones
Sensitive formulations
Residence time control
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