Jaw Crusher Unit is a tool for crushing rocks or other materials that functions to reduce the size of the material into a smaller size. Here are some of its characteristics and uses: Function 1. Crushing rocks or other materials. 2. Reducing the size of the material. 3. Increasing the efficiency of material processing. Characteristics 1. Consists of two movable jaw plates. 2. Using pressure to crush material. 3. Can crush materials of different sizes. 4. Has a high processing capacity.