It is used for vibrating the mix in moulds according to strictly controlled programme at a frequency of 12,000 + 400 cycles per minute.

The vibrator is mounted over coiled springs and the vibration are developed by means of a revolving eccentric shaft. The center of gravity of the vibrator, including the cube and mould, is either at the center of the eccentric shaft or within 25mm. blow it. The machine is provided with belt guard and a time switch. Suitable operation on 220 volts, 50Hz, single phase, AC supply. Supplied complete with one cube mould made of MS of size 7.06 cm.