Nandhi Primary Crushers are of single-toggle grease lubricated type, and of very robust construction with large mouth openings to allow free flow of rock boulders to be crushed into soiling. In this type of crushers, the moving jaw operates in an elliptical pattern. The crushing force is generated by the eccentric shaft which is then transferred to the crushing zone by a toggle plate system. A Separate grease hand pump is allow the grease from tank to bearing housing and moving jaw. It was done while the bearing housing and moving jaw assembly get heated And another oil hand operated pump is attached in the machine witha separate oil tank, will allow the oil from tank to cylinders for adjusting the output size of the matriels. and the jaw plates has longevity, incomparable with other models of jaw crushers. excelent performance and the most economical.