products details
SME 40/40 R Forward Slotted Thread Mixing Element 40x40mm Low Shear Twin Screw Mixing Block
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SME 40/40 R Forward Slotted Thread Mixing Element 40x40mm Low Shear Twin Screw Mixing Block
| Brand Name: | OEM |
| Model Number: | ME007 |
| MOQ: | Negotiable |
| Price: | Negotiable |
| Payment Terms: | Negotiable |
| Supply Ability: | 8000pcs/month |
Mixing Element 40mm
,Low Shear Mixing Element
,40x40mm screw element
SME 40/40 R Forward Slotted Thread Mixing Element | 40×40mm Low Shear Twin Screw Mixing Block
SME 40/40 R is a professional forward slotted thread mixing element for co-rotating twin screw extruders. It features 40mm lead and 40mm effective length, adopting a unique forward threaded body with precision slotted notches. Different from standard conveying blocks, the orderly cut slots create mild and controlled melt backflow during forward material transportation. Therefore, this element balances smooth conveying and fine distributive mixing in one integrated structure.
First of all, it maintains stable forward feeding efficiency to guarantee continuous extrusion output. Meanwhile, the slot design repeatedly splits and reorganizes polymer melt layers. It effectively disperses pigments, additives and low-to-medium fillers without generating high shear heat. Besides, its compact structure fits the melting and homogenization section of twin screw barrels perfectly. It serves as an ideal transitional mixing unit between conveying segments and strong mixing segments to stabilize overall extrusion quality.
| Model | SME 40/40 R |
| Type | Forward / Right Hand Slotted Thread Mixing Element |
| Lead | 40mm |
| Effective Length | 40mm |
| Core Structure | Forward Thread with Precision Slotted Notch Design |
| Mixing Mode | Low-shear Distributive Mixing with Mild Backflow |
| Standard Material | 38CrMoAl Nitrided Steel |
| Surface Hardness | HRC 58–62 |
| Processing | Precision CNC Slotting + Vacuum Nitriding + Polishing |
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Integrated Conveying & Mixing: The forward thread ensures steady melt forwarding and stable production output. The reserved slots produce mild backflow to realize uniform mixing without blocking material flow.
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Low-shear Gentle Mixing: It avoids violent shear cutting and excessive heat generation. It protects heat-sensitive polymer molecular chains and effectively prevents material degradation and yellowing.
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Optimized Slot Structure: Uniformly distributed notches split melt streams repeatedly. It eliminates additive agglomeration, pigment spots and flow dead zones for consistent compounding uniformity.
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Smooth Extrusion Transition: It works perfectly between pure conveying blocks and kneading/mixing blocks. It stabilizes melt pressure and avoids sudden flow fluctuation during extrusion.
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Anti-adhesion & Easy Cleaning: Polished thread and slot surfaces reduce material residue. It shortens purging time and improves efficiency during frequent color and material switching.
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High Durability & Adaptability: Multiple wear-resistant and food-grade material options support diverse working conditions. Standard spline structure enables flexible screw layout combination.
This slotted thread mixing element widely applies to general plastic compounding processes. It fits color masterbatch homogenization, biodegradable plastic blending, TPE/TPU soft material modification, low and medium filler plastic mixing, heat-sensitive material extrusion and daily stable continuous compounding production.
| Item | Parameter |
| Full Size Spec | 40mm Lead * 40mm Length |
| Rotation Direction | Forward / Right Hand |
| Structural Feature | Forward Thread Body with Even Slotted Notch Layout |
| Working Principle | Steady Forward Conveying + Slot-type Melt Splitting & Mixing |
| Optional Materials | 38CrMoAl, W6Mo5Cr4V2, HIP Alloy, 316 Stainless Steel |
| Surface Treatment | Vacuum Nitriding + Precision Mirror Polishing |
| Applicable Equipment | 40-series Co-rotating Twin Screw Extruder |
| Processing Advantage | Stable Output, Uniform Mixing, Low Heat, Smooth Transition |
A1: Traditional conveying blocks only transport materials without mixing effect, while pure mixing blocks easily cause flow fluctuation. SME 40/40 R combines forward thread conveying and slotted mixing functions. It maintains stable output and improves melt uniformity at the same time.
A2: Toothed elements focus on strong shear mixing. SME slotted thread elements adopt mild slot backflow mixing with lower shear force. It suits heat-sensitive materials and processes that require stable flow and low degradation.
A3: It is usually installed in the melting and preliminary homogenization section. It acts as transitional mixing between conveying segments and intensive mixing segments to optimize overall screw combination.
A4: Yes. Its smooth polished thread and slot structure greatly reduce material adhesion. It simplifies purging work and effectively reduces downtime during color and formula replacement.
A5: Yes. We support custom inner spline parameters, special wear-resistant coating and multiple material upgrades to adapt to high-wear, corrosion-resistant and food-grade production standards.
If you need transitional low-shear mixing elements to stabilize your extrusion process, SME 40/40 R slotted thread mixing block is your ideal solution. We provide full custom services for spline, material and surface treatment. Contact us today to get factory direct price and professional screw layout optimization guidance.
