Abstract:
The organic manure hammer and spreader was designed and constructed from locally
available materials for crushing the cow dung into small size particle enough to pass through
the holes of the detachable concave sieve positioned beneath the hammer assembly. The
crushing process is achieved by the use of swinging hammers in beating the material fed into
fine particles. Based on the power ratings and output shaft speed of the existing grinding
machines in industries; it was found that the rotor shaft speed of 1500rpm is suitable to crush the cow dung, a speed of around 50rpm is required to move the conveyor in respect to the ground wheels and the friction imposed by the ground.