Bevcon jaw crushers are used for primary crushing in a mine or ore processing plant. Jaw crushers are developed to reduces large size rocks or any hardest ores and as well as soft rock, recycling, slag etc. by using compressive force for breaking of particle. Product is fed into the top of the jaw crusher by a vibrating grizzly feeder. Mechanical pressure is achieved by eccentric rotating drive shaft causes the two jaws of the crusher of which one jaw is fixed mounted in a “V” alignment stationary breaking surface, while the other reciprocates movable jaw exerts force on the rock by forcing it against the stationary plate. The space at the bottom of the “V” aligned jaw plates is the crusher product size gap or the size of the crushed product from the jaw crusher. The material remains in the jaws until it is small enough to pass through the gap at the bottom of the jaws.