Vibratory drives
Vibratory drives are subdivided into four distinctive groups which are:
Electromechanical drives
(From 500 to 3.500 vpm) Mavi drives of the VIMOT series are electric motors, unbalanced, and the vibration force output is determined by changing the relative position of counterweights on the shaft or during operation by means of frequency inverters.
Electromagnetic drives
(1.500, 1.600 , 3.000 or 3.600 vpm) Electromagnetic vibrators of our VIMAG line, are two mass linear vibration drives, leaf springs equipped. Varying the voltage in the electromagnetic coil, which atracts one of the masses, will increase or decrease the vibration stroke. Frequency is not variable.
Natural frequency crank drives
(From 470 to 720 vpm) These drives are of very simple and robust concept, probably the oldest type known. An eccentric shaft is driven by a standard electric motor (pneumatic or hydraulic may be used too). The eccentricity impels one or two sturdy crank arms, connected to the equipment´s main body: conveyor, feeder or screener.
Vibratory cells
(650 to 800 vpm, extra heavy duty) These extra sturdy and reliable drives (fig.4) are specially designed for very heavy vibratory equipment, and where an absolute non-dynamic synchronisation is needed, in order to produce linear vibrations.
