Application Of Twin Screw Extruder
- Modified granulation: glass fiber reinforced PA, flame retardant ABS, cable materials
- Masterbatch: Color masterbatch and functional masterbatch
- Highly filled and composite materials: Wood-plastic composites (WPC), PP/PE filled with calcium powder/talcum powder, CNT conductive composites
- Recycled materials: cleaning and granulation of waste PET bottle flakes, modification of PLA/PBAT fully biodegradable materials
- Biodegradation: Modification of materials such as PLA, PBAT, PBS, etc
- Fine chemicals, pharmaceuticals, and food: reactive extrusion degassing, pet food extrusion, synthesis of high-end pharmaceuticals, etc
Composition Of Twin-screw Extruder
Utilizing a modular screw assembly and quick-release latch structure, the conveying, kneading, and shearing components can be freely combined.
This meets the production needs of modern enterprises, which require personalized, small-batch, and multi-formula production
Feeding system:
- Single screw volumetric feeding, double screw volumetric feeding
- Different feeding systems are selected for different materials. Common ones include:
1. High-speed mixer, horizontal mixer, screw feeder
2. Mixer, elevator, conical double forced feeder
3. Fully automatic weighing and feeding system, with independent conveyance for each raw material. (Feeding accuracy > 99.5%)
Extrusion system:
- Foundation part: base, water pipe support frame, etc.
- Power part: motor, coupling, gearbox
- Core part: barrel, screw shaft, screw elements, filter, head
- Auxiliary part: side feeder, soft water cooling system, vacuum system
Cooling and pelletizing system:
- Water strand pelleting system
- Air cooling strand pelleting system
- Water Ring pelleting system
- Die face air cooling hot cutting system
- Underwater pelleting system
- Water-cooled flow pelleting system (PET)
Different Torque Models
In response to the surging market demand for engineering plastics and complex materials, high torque output is increasingly favored.
The specific torque can exceed 14 Nm/cm³, far surpassing the industry mainstream level. The maximum diameter of the screw can be 300mm.
1. MT series: The most common and widely used mainstream model (Standard type)
| Type | L/D | Main Power(kw) | Screw Diameter(mm) | Screw Speed (rpm) | Output(kg/h) |
|---|---|---|---|---|---|
| MT20 | 28~48:1 | 4 | 21.7 | 600 | 3~15 |
| MT36 | 28~62:1 | 22 | 35.6 | 600 | 60~100 |
| MT50 | 28~62:1 | 75 | 50 | 600 | 150~250 |
| MT65 | 28~62:1 | 90 | 62.4 | 600 | 250~350 |
| MT75 | 28~62:1 | 132 | 71 | 600 | 400~650 |
| MT95 | 28~62:1 | 250 | 93 | 600 | 700~1000 |
2. MH series: Common high torque, paired with a D-type gearbox, torque level: 8~11 Nm/cm ³
| Type | L/D | Main Power(kw) | Screw Diameter(mm) | Screw Speed (rpm) | Output(kg/h) |
|---|---|---|---|---|---|
| MH25 | 28~48:1 | 7.5 | 25 | 500/600 | 15~30 |
| MH36 | 28~62:1 | 30 | 35.6 | 500/600 | 80~120 |
| MH50 | 28~62:1 | 90 | 50 | 500/600 | 200~300 |
| MH65 | 28~62:1 | 132 | 62.4 | 500/600 | 300~450 |
| MH75 | 28~62:1 | 220 | 71 | 500/600 | 500~750 |
| MH95 | 28~62:1 | 250 | 93 | 500/600 | 750~1100 |
3. MU series: Performance extrusion, torque level: 13 Nm/cm ³
| Type | L/D | Main Power(kw) | Screw Diameter(mm) | Screw Speed (rpm) | Output(kg/h) |
|---|---|---|---|---|---|
| MU25 | 28~48:1 | 15 | 25 | 600 | 25~40 |
| MU36 | 28~62:1 | 37 | 35.6 | 600 | 100~200 |
| MU50 | 28~62:1 | 110 | 50 | 600 | 250~450 |
| MU65 | 28~62:1 | 220 | 62.4 | 600 | 500~700 |
| MU75 | 28~62:1 | 315 | 71 | 600 | 750~950 |
| MU95 | 28~62:1 | 650 | 93 | 600 | 1000~1500 |
4. MU+ series: Performance beast, torque level: 16~18 Nm/cm ³
| Type | L/D | Main Power(kw) | Screw Diameter(mm) | Screw Speed (rpm) | Output(kg/h) |
|---|---|---|---|---|---|
| MU+65 | 28~62:1 | 315 | 62.4 | 600 | 800~900 |
| MU+75 | 28~62:1 | 450 | 71 | 600 | 950~1400 |
| MU+85 | 28~62:1 | 630 | 81 | 600 | 1500~1800 |
| MU+95 | 28~62:1 | 1000 | 93 | 600 | 2000~3000 |