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TPU Pelletizing Line Twin Screw Extruder
**Product Specifications:**
- **Model No.:** TSH-85
- **Engagement System:** Full Intermeshing
- **Screw Channel Structure:** Deep Screw
- **Exhaust:** Yes
- **Automation Level:** Fully Automatic
- **Computerized Control:** Yes
- **Screw Diameter (mm):** 81
- **Capacity (kg/h):** 400–500
- **Trademark:** CHUANGBO
- **Packaging:** Wooden Cases
- **Specification:** Customizable
- **Origin:** Nangjing, Jiangsu, China
- **HS Code:** 8477900000
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**Product Description:**
The twin-screw extruder is an advanced and versatile machine, especially suitable for high-viscosity reaction systems. It offers significant advantages in terms of heat and mass transfer, interface renewal, and a narrow residence time distribution. Its large specific surface area makes it ideal for devolatilization, while its low operational threshold allows for smooth continuous operation.
This type of extruder, also known as a twin-screw reactor, is not only used for mixing, shearing, conveying, and extruding but also for polymerization reactions. As a result, the processing techniques involved are more complex, requiring multiple technologies to be integrated. Although it's not commonly used, it plays a crucial role in specialized applications.
Each application has unique requirements in terms of structure and parameters, which often necessitate custom-built machines tailored to specific materials and polymerization processes.
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**Typical Applications:**
- TPU reactive extrusion (for polyurethane fibers, elastomers, and adhesives)
- PC melt-phase polycondensation
- PMMA bulk polymerization
- Acrylic resin polymerization
- Nylon polycondensation
- Various grafting reactions
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**Process Flow for TPU Reactive Extrusion Line:**
1. Metering feeder system
2. Material silo
3. Mixing head
4. Main extruder
5. Diverter valve
6. Screen changer
7. Underwater pelletizer
8. Centrifugal dewatering
9. Vibrating sieve
10. Product container
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**Advanced Manufacturing Platform:**
The gearboxes are designed with optimized gear ratios using CNC technology, ensuring high precision and reliability. They feature imported bearings, high-quality gears, and a robust lubrication system to enhance performance and durability.
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**Construction Materials:**
Barrels and screw elements are typically made from high-quality nitrided steel or high-speed tool steel. For special applications, corrosion-resistant or abrasion-resistant materials can be used to meet specific processing needs.
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**Key Parts Machined with CNC Technology:**
All critical components are manufactured using advanced CNC machining techniques, ensuring precision, consistency, and long-term performance. This level of engineering guarantees reliable operation under demanding conditions.
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This extruder is a powerful solution for industries requiring precise control over chemical reactions and material processing. Whether you're working on polymers, adhesives, or specialty chemicals, this machine delivers efficiency, flexibility, and high-quality output.