Impact sand gravel making machine instruction Vsi impact crusher is new type sand making the machine, has better comprehensive performance than the rod mill sand making machine, the straight-through impact sand making machine, and the cone crusher and soft hammer crusher. It has the characteristics of stable and reliable work, convenient maintenance and high sand production rate. The equipment is suitable for stone shaping, production mechanism sand, sand making field, high-grade highway, railway, water conservancy, construction, cement, refractory, metallurgy, glass sand, and other industries. Structure VSI Sand Making Machine Features 1. Special light oil lubrication system ensures the temperature to be within 25 ºC. 2. Brand new automatic protection device provides the machine with vibrating, oil filtering and warning system. 3. A new type oil filtering device ensures the bearings and other transmission devices not being abraded and prolong their service time. 4. Optim...