26. On What Basis Are Materials To Be Crushed Evaluated Apart From Size?
The choice of the crusher machine to be employed to crush the materials depends on the following properties apart from the size of it: Hardness: The hardness affects the power consumption and the wearing of the machine. With hard materials it is necessary to use a low speed machine along with pressure lubrication. Structure: Normal granular materials can be crushed by using compression and impact methods. On the other hand for fiber like materials compression and impact methods don't work instead a tearing action is required.