Vibrators are characterised by their velocity n (in turns/min) and from the useful moment M (in Kg/mm). The type of application and the features of the product should be considered in the choice of the number of turns.

Vibrators at 3000 turns/min are used when a vibration at high frequency and low amplitude is requested, generally to avoid blockages of products that have become melted in silos, hoppers, and so on.

Vibrators at 1500 and 1000 turns are primarily used for processes of transport, sifting, and so on.

The amplitude of vibration can be varied only by a still motor through the regulation of the masses. The rotational velocity can be varied by supplying the motor with power through a frequency changer (inverter). In such cases, the regulation can occur with the motor in movement directly by the inverter or by a remote control. By utilising the brake features, you can also limit oscillations upon arrest of the machine. In the choice and the calibration of the inverter, you must keep in mind the following considerations:

1. All vibrators mounted on the same machine must start at the same time and be supplied by only one inverter.
2. You must never surpass the nominal velocity of the vibrator, to avoid resonance problems- instead, you must stay below 50% of the machine’s nominal velocity.
3. To achieve a good launch of the machine, we advise using inverters with nominal power 2-3 times greater than the total power of the vibrators mounted on it.