Rod mill Sand-type widely used, its performance has reached international advanced level, is the most effective, practical and reliable machine crushed stone, sand and gravel industry is a widely used construction equipment, sand gravel, one of the rod mill Sand type is mainly used for feldspar, quartz, minerals and other raw materials, processing, crushing, also applies to the production of abrasives, refractories, cement, steel grit, slag powder, copper ore, iron ore, gold ore, concrete aggregate , asphalt aggregate and other hard, brittle materials in the crushing and broken, is an efficient, energy-saving equipment, sand gravel, sand making energy-efficient than traditional, is the world's advanced system sand equipment. Rod mill Sand-style gear by the motor through the gear reducer and the surrounding low-speed synchronous motor drive or by direct transmission through the surrounding large gear to drive the cylinder rotation. Cylinder body with the appropriate grinding media steel bar. Grinding media in the role of centrifugal force and friction, was promoted to a certain height, the state was thrown down or fall off the vent. By grinding the material to mine from the mouth into the cylinder continuous internal movement of the grinding media is shattered, and through the overflow to the mine and the power of continuous product from outside, a process for the next operation.