Osborn Obex Screens are locally designed and built to meet the needs of Southern African mining and quarrying operating conditions. The extensive range of vibrating feeders have been tested and proven in ongoing programs of intensive field research, through years of use in mines and industry throughout Southern Africa.
Two vibrating motors rotate in opposite directions, synchronise and impart a vibrating force in a longitudinal direction. This lifts the material and carries it forward on each rotation, providing a constant feed rate. The amplitude can be varied by adjusting the out-of-balance weights on the vibrating motors to the required stroke.
The frequency depends on the use of 4-pole and 6-pole motors, as dictated by the applications.