Many polyurethane manufacturers face bubble defects, batch performance inconsistency, poor temperature control and safety risks during prepolymer synthesis. Our Haifeng HF-Premix prepolymer reactor is specially designed for TDI, MDI and NDI prepolymer production, with high vacuum degassing, intelligent temperature control and multi-point safety interlock to deliver uniform, high-quality prepolymer for stable CPU elastomer manufacturing.
Technical Specifications
| Parameter | Detailed Specifications |
|---|---|
| Model | HF-Premix (Customizable configurations. Also available: Haifeng Polyurethane Lab Machine For Chemical R&D) |
| Vessel Capacity Options | 50L, 100L, 150L, 200L, 250L, 300L, 500L, custom volume supported |
| Vessel Dimensions | Φ400×400, Φ500×500, Φ600×500, Φ600×700, Φ700×700, Φ800×900, customizable |
| Working Temperature | 80–120℃ |
| Ultimate Vacuum Degree | 6×10²Pa |
| Stirring Speed | 0–150rpm, adjustable |
| Stirring Motor Power | 0.55–2.2kW, varies by configuration |
| Electric Heating Power | 9–18kW, varies by configuration |
| Total Weight | Approx. 150–800kg, varies by configuration |
| Warranty | 1-year full machine warranty |
| Certifications | CE standard, EN 60204-1 electrical safety, ISO9001 quality system. View 【内链：About Us】 for full details |
| Brand | Haifeng |
Application Scenarios
- Synthesis of TDI, MDI and NDI based polyurethane prepolymers
- Dehydration and degassing pretreatment of polyols and other raw materials
- Two-step prepolymer process for CPU elastomer production, separating pre-polymerization and chain extension reactions
- Suitable for elastomer, coating, adhesive and sealant material production lines
Core Advantages
1. Robust Structure & Long-Term Stability
The reactor vessel features high structural rigidity, maintaining stable shape under long-term high temperature and vacuum working conditions. It ensures lasting alignment accuracy of the stirring system and stable performance throughout extended production cycles.
2. Uniform Product Structure & High Batch Consistency
The two-step prepolymer process allows sufficient reaction between polyols and isocyanates, generating elastomers with uniform microstructure. The finished prepolymer delivers excellent comprehensive mechanical properties and highly repeatable batch quality, widely verified in the polyurethane industry.
3. High Vacuum System, Bubble-Free Products
Optimized tank welding structure and precision sealing technology, combined with reliable dynamic sealing of the stirring shaft, maintain a long-lasting high vacuum environment. It effectively suppresses bubble generation, improves product compactness and reduces internal defects in finished prepolymers.
4. Intelligent Temperature Control, Flexible Process Switching
Equipped with automatic temperature regulation system, realizing rapid heating and uniform temperature distribution during the whole reaction process. It also comes with efficient and reliable cooling solution, enabling flexible and convenient process switching for different formula requirements.
5. Reliable Discharging & Easy Maintenance
Inner tank wall and stirring blades are specially polished. Combined with optimized vessel bottom design and discharging valve layout, it minimizes residual material at the bottom, ensures more complete reaction, reduces cross-contamination between batches, and simplifies cleaning and maintenance.
6. Multi-Point Safety Interlock, Compliant Operation
The system integrates multi-point interlock protection logic, with automatic warning and disposal functions for overpressure, overtemperature and stirring abnormal conditions. It complies with chemical production safety specifications and reduces manual operation risks.
Warranty & After-Sales Service
- 1-year warranty covering all core mechanical and electrical components
- On-site installation, commissioning and operator training by professional engineers
- Lifetime remote technical support & process parameter debugging guidance
- Fast supply of original spare parts to minimize downtime
- View Cases for our global polyurethane industry project cases
