How Long to Replace the Rollers of powder grinder?

The rollers is the core component of powder grinder, powder grinder work mainly rely on the roller under the action of centrifugal force, multiple squeeze to complete material powder grinder l ring, so roller device is easy to appear wear away, how long does it take to replace roller device used is more appropriate?
 
Specifically, powder grinder grinding material is through the rolling mill roller and part of a huge extrusion for the material, finally makes the material crushing, slowly working long hours, roller will gradually thinning, when wall thickness less than 10 mm roller, roller will be scrapped, in general, the use of the roller time reaches 500 hours need to change again, and the need for timely cleaning roller set inside the bearing device.
 
If not timely replacement of grinding roller, roller will be serious wear and tear, become irregular oval, not only raises the noise and vibration of machine work, and the finished product material particles grinding fineness is also very uneven. In addition, check regularly whether the roller device connecting nut loose, become loose, should be timely fastening; And the shovel, and wearing parts for wear serious, such as bearing, completes the daily maintenance of each parts, can prolong the service life of ultrafine powder grinder.
 
All in all, users in the use of powder grinder, pay attention to the roller device use time, to scrap the limit, must be timely replacement. Otherwise it will greatly influence the running efficiency of the whole machine, powder production will be greatly reduced.