Under normal circumstances, sand making machine use the high-speed rotation of the impeller assembly materials for the full impact of the crushing effect. Improper operation due to equipment wear the device will have a greater noise, leading to damage to sand making machine on the production of materials. So when the sand making machine abnormal noise working, immediately shut down for equipment inspection, trouble shooting in order to continue production work.From the working principle of sand making machine up analysis, sand making machine at work impeller device with full touch materials for a long time and impact, it is likely to cause loose bolts, and equipment parts fall off after working with the material in the cavity and generating device itself collide abnormal noise; when not broken when the material was fed into the working chamber, if any, will produce the mutual collision of the internal device, and a larger working noise.The common stone crusher in stone crushing plant contain jaw stone crusher, impact stone crusher, cone stone crusher, VSI sand making machine, etc. With more than 15 years’ experience in designing and manufacturing stone crusher plants equipment, Hongji is able to supply best stone crusher plants machines and complete stone crusher plants construction service.