Counter with mechanical impulses for production machines (Forms, pistons, moulding forms, for safes, selling machines, casinos..., etc.) or all machines being equipped with an opening/closing device. Each counter is equipped with a metal lock. The interlocking points close when reaching its final position. The metal locks are numbered and they are supplied along with the counters.
The counters are easy to mount into a specified opening at the housing of the machines. The fixing devices are bolts or spikes (only one fixing tool is needed). The counter might alternatively be mounted externally.