ITALVIBRAS
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Vibration systems and methods
The systems that use the vibration technique can be divided into the following categories:
•
freely oscillating systems, which will be described in this guide
•
oscillating systems bound to resonance, which require specific in-depth research. Please contact the Technical Sales Service
of Italvibras if these systems are required.
The free oscillation system includes two different methods:
•
rotational: the vibrating force is directed in all directions through 360° in a rotational way, either clockwise or anticlockwise.
•
unidirectional: the vibrating force is directed in one single direction in fade-free sinoidal reciprocating mode.
The “rotational” method is obtained by using a single electric vibrator.
The “unidirectional” method is obtained by using two electric vibrators with the same electro-mechanical characteristics,
each turning in the opposite direction to the other.
Examples of how electric vibrators are used in different processes
The following examples illustrate a few typical uses:
Unidirectional method
Vibrating force in a single
direction, in sinusoidal
reciprocating mode.
Rotational method
Vibrating force directed
in all directions through
306°, in rotational mode.
SELECTING THE ELECTRIC VIBRATOR
For conveyors, separators,
sieves, sizing machines, un-
loaders, positioners, sorters,
feeders and fluidized beds:
unidirectional method.
For compacting tables and
tests (accelerated ageing,
stress, ecc.): unidirectional
or rotational method.
For compacting tables and
tests (accelerated ageing,
stress, ecc.): rotational
method.
For vibrating beds: rotatio-
nal method.
For filters: rotational method.
For silos and hoppers:
rotational method.