The unique action of the Metso wobbler feeder can actually boost material production from 50% to 100%. This is accomplished, in one operation, by scalping out fines and feeding only oversize to your crusher or impactor. Maintenance is also reduced because abrasive, choking fines are bypassed. Wobblers are self-cleaning and resist clogging in wet, sticky materials. Metso wobbler feeders operate with low horsepower and headroom requirements, and without vibration, noise or transmitted stresses, making them ideal for both stationary and portable applications.