Application:
This machine is suitable for blowing polypropylene (PP) plastic film, which is widely used in food, clothing, garbage bags, vest bags and other consumer and industrial packaging.
Main Features:
This machine adopts blow-down type to blow polypropylene (PP) plastic film. Its extruder, cylinder and screw rods are made of quality alloy steel after nitrogen treatment and precision machining, with the best hardness and corrosion resistance, specially designed screw, high output, good plasticization. The main motor adopts frequency control, improve the speed regulating stability of the screw and material barrel adopt 38 chrome-molybdenum aluminum which has been nitrogen treated and the traction frame adopts lifting type, no matter big or small size film can get the optimal cooling effect. Winding adopts friction rewinding with rotary die to get better quality product.
Main Technical Parameters:
| Model | SJ-PP-B60 | SJ-PP-B65 | SJ-PP-B70 |
| Screw diameter | Φ60mm | Φ65mm | Φ70mm |
| Screw L/D ratio | 1:27 | 1:27 | 1:27 |
| Screw speed | 10-120rpm | 10-120rpm | 10-120rpm |
| Folding width of film | 300-800mm | 400-900mm | 500-1000mm |
| Die head diameter | Φ250mm | Φ300mm | Φ350mm |
| Main motor power | 18.5kw with frequency control | 22kw with frequency control | 30kw with frequency control |
| Traction motor power | 1.5kw with frequency control | 2.2kw with frequency control | 2.2kw with frequency control |
| Max. output | 40kg/h | 45kg/h | 50kg/h |
| Single-face film thickness | 0.008-0.15mm | 0.008-0.15mm | 0.008-0.15mm |
| Total power | 45kw | 50kw | 65kw |
| Overall dimensions | 4300×2600×4200mm | 4500×2800×4500mm | 4800×3000×4800mm |
| Machine height | 4.5-5.5.2m | 4.8-5.5m | 5.5-6.2m |





