Many quarries and mines' profit margins will continue to decline, in part because their maintenance teams do not fully understand the maintenance requirements of the mills they are responsible for. Here are three completely different types of crusher maintenance that must be thoroughly understood regardless of which type of crusher is used.

Preventive
The implementation of preventive maintenance plan is a way to keep the mill in good condition for a long time. Preventive maintenance will include periodic inspection, inspection and regular maintenance recommended by the mill manufacturer. Preventive maintenance is usually set daily (8 hours), weekly (40 hours), monthly (200 hours), annual (2000 hours) and liner change schedule. Adjust and replace worn parts prior to major mill failure according to planned inspection and inspection. Preventive maintenance is the key component of the mill life.

Predictable
It refers to monitoring the status of pulverizer during operation. This is achieved by using available predictive maintenance tools such as, but not limited to, lube oil temperature sensors or thermometers, lube oil pressure sensors or meters, lube oil tank return screen, lube oil filter status indicator, mill coast down time, no load head rotation, lube oil analysis report, mill drive motor power consumption readings, vibration sensors Readings and complete daily operator mill log sheet. These predictive maintenance tools can be used to help understand and understand the normal operation or characteristics of the mill. Once the normal operating conditions or characteristics have been determined, any collected data that appears to be abnormal compared with normal conditions will indicate that there is a problem with the pulverizer and further research is needed. At this point, parts can be ordered and manpower arranged before the crusher fails. It is always considered to be cost-effective to maintain the pulverizer based on abnormal operating conditions.

Reactivity
Here, preventive and predictive maintenance is ignored, and the mill is allowed to operate without taking any measures to correct the abnormal condition until the actual failure of the pulverizer. This "if you don't break it, don't solve it" attitude will bring short-term savings to the mine, but it will lead to huge maintenance costs and production interruption, because a small problem will snowball into a catastrophic crusher failure.

Benefits of a well-designed maintenance plan
Over the years, it is well documented that if preventive and predictive maintenance is ignored, the pulverizer will face the problems of poor online availability, staggering high operating costs and shortened service life. The implementation of preventive and predictive maintenance procedures is a key factor in expanding or maximizing the performance of a pulverizer. Some mines can earn enough profit each year to offset the cost of continuous and unnecessary replacement of mill parts and the loss of revenue associated with mill failures and prolonged downtime. At best, these organizations are making less profit than they should be; worse, they are heading for financial disaster.