Design and Development of Coconut Shell Shredder

Abstract

This project aims to design and develop a coconut coir shredding machine and evaluate its shredder efficiency. The device is 40 cm. wide, 70 cm. long, and 102 cm. high.  The machine is powered by the three-horsepower ac motor. The power is then transmitted by the belt, connected to the pulley, to move the axle which was attached to the three-layer blade one of which is the sickle blade and the other two are the hardened leaf springs. The tank is 2 mm. thick and 50 cm. high with a diameter of 40 cm. To find out the efficiency of the device, two types of materials, the whole fresh coconut and the fresh coconut coir, were used. It was found that, for the whole fresh coconut, the shredding rate was 385.2 kg/hr. with the shredding efficiency of 98.60 percent. For the fresh coconut coir only, the shredding rate was 763.2 kg/hr., and the shredding efficiency was 97.61 percent.