Equiptrade Feeders: Feeder Body: Fully welded construction with ribbed and stiffened side plates; Impact Section: Bolted renewable liner plate supported by close pitched heavy rolled steel sections; Grizzly Bars: Fabricated from large section mild steel plate with tapered wearing surface of wear resistant steel, and can be supplied as single, double or triple step. Each grizzly bar is bolted to support beams; Coil Springs: Heavy duty helical coil springs are located under each end of the main body, to isolate vibration, and also to absorb the shock load imposed by the vehicles discharging quarried rock on to the feeder; Vibrating Unit: The vibrating mechanism is connected to the main body by a series of high tensile bolts; it is a fabricated, dust proof enclosure. Fitted with 2 contra-rotating geared eccentric shafts, mounted in heavy duty splash lubricated self-aligning roller bearings, to give linear action, acting at 45Deg. It is possible to adjust the amplitude by the addition of weights to the eccentric shafts. See MORE DETAILS.