Maximum mixing performance with minimal conveying influence
Strong dispersive and distributive mixing
No forward conveying
Stable residence time control
Effective pressure regulation
Neutral kneading elements consist of multiple discs arranged at a 90° stagger angle, typically forming a five-disc configuration.
Because they provide no net forward or reverse conveying, they are defined as "neutral" elements.
Their primary function is to deliver maximum mixing intensity while maintaining controlled residence time and fill level.
Strong dispersive and distributive mixing capability.
Material remains in the mixing zone longer.
Ensures consistent processing conditions.
Supports downstream processing stability.
No conveying → maximum mixing + longest residence time
| Diameter | Ø18–Ø400 |
| Do/Di Ratio | 1.55～1.8 |
| Length | 0.5～2.5D |
| Pitch | Customized |
| Material | N00/D2/D11/W6/H9/H10/H26/Hastelloy/Stainless |
| Surface Hardness | HRC 58–64 |
| Max. Operating Temp | ≤450°C |
| Wear Resistance | Standard/High/Ultra-high |
| Corrosion Resistance | Standard/High/Ultra-high |
| Application | Masterbatch/Compounding/Recycling /Film/Feed/Food/Pharmacy |
| Suitable for | Twin Screw Extruder |
A: When maximum mixing is required without additional conveying.
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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
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