WB-YF-A Automatic Batch Pre-expanderFunction：
The pre-expander forms the basis for further processing of EPS, it is the result of logical experience of physical processes in machine technology, intensive exchange of knowledge with users and raw material suppliers.
1. Advanced programming control system, highly user friendly, perfect automation of production.
2. Fully computerized memory, recording of massive settings.
3. Multiple safety assurances , enhanced protection of operators.
4. Precise weighing system, European standard weighing system is available, ensuring the accuracy from the very beginning.
5. Perfect sealing and chamber pressure stabilizing, highly efficient heat transition, energy saving up to 50% comparing to continuous pre-expander.
6. Adopting best quality valves, electronic devices, to make sure stable, reliable and long lasting production.
7. Automatic sensor for material level control, fully automatic density monitoring and control device, make the products with even density.
8. Perfect sealing and drying system.
9. Faster discharging of pre-expanded materials by compressed air.
10. Drying system including fluidized bed drier is optional.
11. High throughouts at low energy consumption.
12. Second pass version is available.
Models
| Subjects | unit | WB-YF-500-A | WB-YF-1100-A | WB-YF-1600-A |
| （Length） | mm | 3000 | 1780 | 1850 |
| （Wide） | mm | 3780 | 3220 | 1850 |
| （Height） | mm | 3280 | 4250 | 5680 |
| weight | Kg | ≈1200 | ≈2500 | ≈3500 |
this information is for reference only, further details to be confirmed with the company.
Energy consumption
| models | unit | WB-YF-500-A | WB-YF-1100-A | WB-YF-1600-A |
| steam consumption | Kg/cycle | 2.5-5 | 4-8 | 10-17 |
| air consumption | m3/cycle | 0.4-0.8 | 1 -2 | 1.2-2.5 |
| power consumption | KW | 3.1 | 9.6 | 19.8 |
Functioning
| subjects | WB-YF-500-A | WB-YF-1100-A | WB-YF-1600-A | |||
| expansion rate | 12-14g/l | 12-30g/l | 12-33g/l | |||
productivity | 12 g/l | 70-90 kg/h | 12 g/l | 150-200kg/h | 12 g/l | 550-680 kg/h |
| 18 g/l | 100-130 kg/h | 18 g/l | 250-300 kg/h | 18 g/l | 700-850 kg/h | |
| 20 g/l | 150-180 kg/h | 20 g/l | 320-380 kg/h | 20 g/l | 900-1000 kg/h | |
| 35 g/l | 200-230 kg/h | 30 g/l | 410-500 kg/h | 30 g/l | 1200-1300kg/h | |
Instruction
| subjects | unit | WB-YF-500-A | WB-YF-1100-A | WB-YF-1600-A | |
| chamber | diameter | mm | φ500 | φ1100 | φ1600 |
| height | mm | 1000 | 1500 | 2500 | |
| size | m3 | 0.1963 | 1.4255 | 5.0265 | |
| steam | entry | mm | φ25 | φ50 | φ50 |
| Entry pressure | MPa | 0.4-0.8 | 0.4-0.8 | 0.4-0.8 | |
| compressed air | Entry | mm | φ25 | φ40 | φ50 |
| Entry pressure | MPa | 0.4-0.8 | 0.4-0.8 | 0.4-0.8 | |
| Drainage | motor | mm | φ65 | φ80 | φ100 |
| Drainage | mm | φ65 | φ80 | φ100 | |
| density calculation | -- | density calculation | density calculation | density calculation | |
| density tolerance | -- | ＜±3% | ＜±3% | ＜±3% | |
| spinning motor | KW | 1.1 | 4 | 11 | |