It is not just the biological life cycle existing in nature, sand making equipment also have their own life cycle, from initial design to produce to the market to sell until the termination of the use, it will experience a long period of time, and this is what we call the sand machine life cycle of the equipment. In recent years, continuous research and development of sand making machine set off the economic boom, sand making equipment constantly updated replacement is significantly faster, some mining equipment have not been really promoted , and they are forced to withdraw from the market. This is a good thing or a bad thing for the manufacture of mining machinery, in fact, I feel that the advantages outweigh the disadvantages. This is incentive for the research and development of new equipment, we promote the continuous progress of the enterprises, but also brings new challenges to the enterprise. Sand making equipment hammerhead is wearing parts, and therefore we should also grasp more knowledge on its maintenance. Sand making equipment hammer weight becomes lighter with the wear and tear of hammer, hammer weight reduction will affect the quality of the sand and gravel. After long time, the question inevitably suddenly burst out, such as the use time is longer, the wear of hammerhead will exacerbated, the fineness of the sand and gravel will change, the powder content is also reduced.