A vacuum technology innovation for die-casting machines: Tandem vacuum for proportional de-airing of the mould.
Tandem Vacuum is a new vacuum system for evacuation of the mould of a die-casting machine. The system is innovative and boasts different technology to hitherto existing vacuum systems.
The power of the injection plunger is used and causes evacuation to take place proportionally to the injection. The vacuum this creates is therefore adjusted to the mould filling process. No additional power is needed apart from the kinetic energy of the injection plunger.
The system is characterised by high negative pressure and repeat accuracy of the evacuation. It can be connected to all de-airing systems.
On account of the fitting depth of the vacuum cylinder, the construction means that in some machines the system can only be used in the lower and middle injection position.