Nanjing Lesun Screw Co., Ltd.
No.9 Zhiyong Road, Jiangning Konggang Development Zone, 211100, Nanjing City, P.R.China.
+86-13605142173 info@lesunscrew.com
Nanjing Lesun Screw Co., Ltd.
Nanjing Lesun Screw Co., Ltd.
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ZME Mixing Element for Twin Screw Extruders

High-intensity mixing element for demanding compounding applications


  • Maximum mixing performance  

  • Strong shear and cutting effect

  • Intensive material recombination

  • Suitable for difficult dispersion systems

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Overview

ZME mixing screw elements are designed from a single-flight reverse conveying element with a small pitch, onto which forward-oriented teeth are introduced along the flight geometry.


This structural modification combines the reverse conveying base with forward cutting features, enabling repeated material deformation, cutting and recombination as the melt passes through the element. As a result, both dispersive and distributive mixing are achieved.


Among all mixing elements, ZME delivers the highest mixing intensity and energy input.

Key Features

Intensive Mixing Capability

Provides both dispersive and distributive mixing.

Strong Cutting Mechanism

Breaks agglomerates effectively.

High Energy Input

Suitable for difficult-to-process materials.

Complex Flow Interaction

Enhances material homogenization.

Design & Technical Insights

Reverse base structure increases residence time
Forward teeth introduce localized shear zones
Generates cutting + recombination mixing mechanism
Engineering principle

Shear + geometric disruption = maximum mixing efficiency

Technical Details

DiameterØ18–Ø400
Do/Di Ratio1.55~1.8
Length0.5~2.5D
PitchCustomized
MaterialN00/D2/D11/W6/H9/H10/H26/Hastelloy/Stainless
Surface HardnessHRC 58–64
Max. Operating Temp≤450°C
Wear ResistanceStandard/High/Ultra-high
Corrosion ResistanceStandard/High/Ultra-high
Application

Masterbatch/Compounding/Recycling

/Film/Feed/Food/Pharmacy

Suitable forTwin Screw Extruder


Applications

High filler compounds
Difficult dispersion systems
Engineering plastics
High-performance compounding

Customization Options

Tooth geometry design
Mixing intensity adjustment
Wear-resistant material selection

Q&A

Q1: When should ZME be used?

A: When maximum mixing intensity is required for difficult materials.

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