ABSTRACT
A motorized tuber chipping machine was designed, constructed and tested for its efficiency using yam and cassava tubers. The purpose is to reduce the thickness and increase the surface area thereby improving drying. It consists of rotary blades, feeding chutes and electric motor. It is powered with the aid of a 2hp, 1800 rpm electric motor, using a pulley and belt. The device is manually fed with one tuber at a time. Performance of the device was evaluated using the following parameters: chipping efficiency, chipping capacity and percentage of non-uniform chips. The chipping efficiency, chipping capacity and percentage of non–uniform chips obtained was 78.19%, 6.6kg/min and 21.81% respectively. The chute is made adjustable to different tuber thickness so as to reduce vibration percentage of non–uniform chips.
