... big arm, upper and lower quadrangled wheel, active power, main reducer, main frame and other components. It is mainly used in ... washing machine (roughing device), jig (cleaning equipment),it is used for the completion of ore washing, chose, crushing, screening, conveying, ... up of the tape conveyor belt, chute, motor, reducer, it is used for the abandoned gravel and tailings(Weifang Lingwei Machinery Co ...