products details
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ZE75 Reverse Thread Screw Element Co-Rotating Twin Screw Extruder Components
| Brand Name: | OEM |
| Model Number: | TSEP006 |
| MOQ: | Negotiable |
| Price: | Negotiable |
| Payment Terms: | T/T,Negotiable |
| Supply Ability: | 8000pcs/month |
ZE75 twin screw extruder components
,75mm twin screw extruder components
,64 HRC screw elements
ZE75 Reverse Thread Screw Element | ZE75 Co-Rotating Twin Screw Extruder Spare Parts
ZE75 Reverse Thread Screw Element (Left-hand flight element) adopts Erdmenger intermeshing self-wiping profile, perfectly matched for ZE75 co-rotating twin screw extruder. Unlike standard forward conveying elements, its spiral direction reverses the material conveying trend. It builds stable melt backpressure, increases barrel filling rate and extends material residence time.
Manufacturers commonly place this element in front of vacuum vent zones to form a melt seal, prevent vent overflow and enhance devolatilization efficiency. It also supports sufficient melting and uniform mixing for polymer modification. The internal spline fully complies with original specifications, and can be freely combined with feeding segments, kneading blocks and forward screw elements to optimize screw configuration for different extrusion formulas.
- Build stable melt backpressure: Create flow resistance to raise local pressure, improve polymer melting uniformity.
- Melt sealing for vent section: Block melt backflow, avoid material spillage at vacuum ports and guarantee stable vacuum devolatilization.
- Extend material residence time: Increase filling degree, realize sufficient mixing of fillers, additives and polymer matrix.
- Excellent self-wiping property: Intermeshing twin flight design eliminates stagnant zones and reduces carbon accumulation.
- Modular assembly: Flexible matching with all standard ZE75 screw elements to adjust shear and pressure distribution.
| Item | Parameter |
|---|---|
| Product Name | ZE75 Reverse Thread Screw Element |
| Applicable Extruder | ZE75 Co-rotating Twin Screw Extruder |
| Outer Diameter | 75 mm |
| Flight Direction | Reverse / Left Hand |
| Profile Type | Erdmenger Intermeshing Twin Flight Self-wiping Profile |
| Inner Spline | Standard ZE Spline, fully interchangeable |
| Optional Raw Material | 38CrMoAlA, W6Mo5Cr4V2, WR5, SAM26, CPM10V |
| Surface Treatment | Gas Nitriding, Alloy Spray Welding, HIP Powder Metallurgy Cladding |
| Surface Hardness | 58 ~ 64 HRC |
| Customizable Parameters | Lead, Element Total Length, Channel Depth |
| Typical Installation Position | Front of Vent Zone / Melting Mixing Zone / Metering Section |
- 100% OEM interchangeable: Strictly manufactured according to original drawing, plug and play without barrel or shaft modification.
- High-precision CNC machining: Stable clearance control, consistent pressure build performance in continuous production.
- Strong pressure building capacity: Better backpressure effect than reverse kneading block, ideal for devolatilization processes.
- Multiple wear-resistant material choices: Adapt to common plastic, medium and high abrasive filled formulations.
- Long service life: Professional heat treatment improves surface wear resistance, lower maintenance frequency.
- Filled plastic compounding (CaCO₃, talc, glass fiber)
- Color masterbatch & functional additive masterbatch production
- Waste plastic recycling, devolatilization and moisture removal
- Polymer alloy blending
- Thermoplastic elastomer extrusion
- Formulas requiring vacuum degassing and volatile removal
We supply standard ZE75 reverse thread screw elements and support customized lead and length. Standard sizes have short lead time. When sending inquiry, confirm extruder model, screw layout drawing, raw material type and filler loading. All screw elements pass dimension tolerance inspection and hardness testing before shipment.
Q1: Can this reverse thread element directly replace original spare parts?
A1: Yes. Outer diameter, spline and flight geometry follow OEM standards, direct installation without extra adjustment.
Q2: What is the difference between reverse thread element and reverse kneading block?
A2: Reverse thread element generates stronger backpressure, mainly used for melt sealing at vent areas. Reverse kneading block focuses more on shear mixing with weaker pressure building capability.
Q3: How to choose suitable material grade?
A3: Nitrided 38CrMoAlA for ordinary plastic compounding; WR5 / high speed steel for medium filler; SAM26 / CPM10V for high glass fiber and high abrasive materials.
Q4: Can I customize lead and element length?
A4: Customization available. We design according to your screw configuration drawing and provide process optimization suggestions.
Q5: Production capacity and delivery time?
A5: Monthly production capacity: 8,000–12,000 PCS. Standard items: 3–7 working days; customized parts:7–15 working days. 12-month warranty under normal operating conditions.
Troubled by vent overflow or insufficient devolatilization on your ZE75 extruder? Our ZE75 reverse thread screw element builds reliable melt seal and stable backpressure. Send your screw drawing and processing requirements today. We provide material recommendation and sample support to stabilize extrusion quality and reduce defective rate.
