Our Product Range
Key Transfer System
Get Latest Price
The fundamental functional characteristic of a key transfer system is that, depending on the operating state of the machine control system, the key is trapped and cannot be withdrawn either
- In automatic mode (with the guard locked) in a control element (usually in a key-operated selector switch) or
- In the guard locking device, namely in a lock, if the guard is open (in an electrically de-energised state).
In other words, a principle feature of the system is that the removable key is trapped either in the guard locking device or in the switch lock.
The locking device of the guard is designed in such a way that the key transfer can only be enabled if the guard is closed and locked (fail-safe). Only in this way can the key be transferred from here to the key-operated selector switch.
When the machine control system is switched on the key is trapped and cannot be removed for as long as the switch is set to ON.
If the transfer time between the opening of the key-operated selector switch and the locking of the guard is not sufficient for a hazardous machine motion to come to a standstill, a key-operated selector switch interlocking device may also be required.
View Complete Details