Page 2 of 3
1. System Thermal bolts
Automatic film and sheet extrusion-dies with thermal bolts "Thermal Bolts" utilizes thermal expansion of steel bolts. Bolts are heated with heating cartridges and chilled with air (external ventilation).
![]() |
|
![]() |
attach-able system |
extrusion-die manufacturer: GMA |
Consisting of:
- Thermal bolts with heating cartridges
- Casing with connection for ventilation
- Blower (ventilator)
Technical data’s:
- Push only or push & pull
- Operating range: 300 µm
- Partition: 30mm, 28 or 25.4 mm (1”) or according customers request
- Heating cartridges, rated power: 80 W
- Mechanical fine tuning with fine thread (0,5 mm/rev. or 0,25 mm/rev)
- Thermal separation to extrusion die (thermal brakes)