Calibration and Haul-Off Unit
The supplier:
Hapro
The purpose of the calibration unit is to precisely fix the geometry of the web immediately after it exits the flat die. The melt is still pliable immediately after the die, and this is when the required parameters must be fixed: thickness, cross-web uniformity, and surface smoothness. The purpose of the haul-off unit is to provide stable product conveyance and create the optimum tension.
Thus, the calibration and haul-off units perform different but related functions: the first provides measurement and process-control accuracy, while the second ensures the stability of the geometry and quality of the finished product.
Key Specifications
| Parameter | Value |
| Maximum width | 75 mm |
| Thickness range | 0.8–2.0 mm |
| Haul-off speed | 0.24–2.5 m/min, manually adjustable |
| Type | Belt |
| Total power | 1.0 kW |
| Cooling | Water |
| Power supply | Single-phase, 220 V |
| Weight | 180 kg |
| Dimensions (L × W × H) | 1200 × 600 × 1300 mm |
