Vacuum Calibration Tank
The supplier:
Hapro
The primary purpose of the tank is to fix the exact shape of the product after the melt exits the extrusion die head, while the polymer is still pliable. If it is simply allowed to cool, the product may deform under its own weight or because of uneven cooling, and undesirable internal stresses may develop.
The vacuum pump creates negative pressure in the space between the product and the walls of the sleeve. Because of the pressure difference between the atmospheric pressure inside the melt and the vacuum outside, the plastic is pressed tightly against the cooled walls of the sleeve. Controlled cooling takes place at the same time, and the material gradually solidifies and assumes the required shape.
Key Specifications
| Parameter | Value |
| Head | Inner Ø10, outer Ø12.5 |
| Calibration | Vacuum |
| Maximum vacuum | −80 kPa |
| Total power | 1.0 kW |
| Cooling | Water |
| Power supply | Three-phase, 380 V |
| Weight | 260 kg |
| Dimensions (L × W × H) | 1500 × 600 × 1300 mm |
