Then the rotor wear rate is reduced greatly, reduce the replacement frequency of the rotor. The last point is the equipment to reduce energy consumption by 50% or more, but also occurred in the production of non clogging phenomenon in the process of. Dry sand making machine has the following advantages: First: the sand making machine technology, quality stable and reliable. Second: dry machine sand density sand making machine production high, less absorbent, grain type.    Third: full automatic production, can operate one, greatly reduce the manpower cost input. Fourth: dust 100% full absorption, zero emission. This point is reflected in the design of dry sand making machine in the concept of environmental protection. Fifth: no sewage generated, no pollution to the environment. With shockproof pad, low noise, noise pollution is reduced.    Sand making machine can be used in many fields, such as grinding PPK finely process mining, building materials, metallurgy, chemical industry, mines, refractories, cement, abrasive etc material breakage etc.. Customers in the selection of the equipment, can the comprehensive consideration of various factors, such as the application domain, the crushing of material hardness, moisture etc.. Of course, more important is to consider the cost of the investment problem.