Jaw Crusher

Jaw crusher machine is the necessary machine in sand making production line. It has wide application and high performance. The related jaw crusher maintenance not only can increase jaw crusher machine’s service life time but also can improve the output and reduce the maintenance costs. It will improve clients’ profits.

In our country, the most important application field of jaw crusher is the in the cement, mining, and highway industries. The jaw crushers of this three industries account for about 30% of the whole crusher industry. In addition, aw crusher is mainly used in mining, construction, metallurgy, coal, water conservancy engineering, chemical, glass and so on. The jaw crusher is widely used in industry in our country.

Because the service life of some small jaw crusher is only 3~5 years, the annual domestic jaw crusher replaced approximately composes 20% in the whole crusher industry. Even the replacement number is such a large quantity, in our country, there are many jaw crushers in overage operation. At present, the overall using situation of jaw crusher is aging. The crusher comprehensive update only is a matter of time, and more large-scale renewal will soon come.

Jaw Crusher Main Parts Material:

The eccentric shaft generally adopts the 40Cr. Flywheel and sheave is made of cast iron. The jaw plate is made of special steel casting and it is high manganese steel which includes the 11%-14% manganese. The jaw beds mostly are made of cast steel parts. The moving jaw assembly is made with high quality cast steel. Frame adopts the casting steel. The bearing set is made of ZG270-500. The fixed jaw plate blot is 35# and so on.

How to Do the Jaw Crusher Machine Maintenance Work?

It needs to check the machine various performance and index regularly. Jaw crusher machine is the necessary machine in stone production line and its index will show the machine’s crushing performance. If it does not have good maintenance, it will make some damage. It needs to check jaw crusher machine’s wear parts’ worn situation. You need to do a timesheet to show the wear parts service lifetime and it will be convenient to change. Check the machine’s discharging material size which has relationship with jaw crusher’s fixed jaw plate and moving jaw plate. The worn of these wear parts will make the discharging material become larger. Clients need to adjust the discharging material size.

It needs to check the transportation part which includes belt wheel, eccentric shaft and so on. Through the triangle belt, jaw crusher will transport the energy. When the triangle is loose, it will have abnormal phenomenon in the working process. Clients need to tighten the triangle belt. Lubrication system is the important part of jaw crusher machine. Its lubrication will make the machine work normally and clients need to have the lubrication timely.

The above is the minor maintenance of jaw crusher machine and the check works in short time. The machine also needs medium maintenance, which includes changing toggle plate, board and check the bearing bush and so on. Though it changes the wear parts on time, it is hard to avoid the toggle plate and board will be worn or broken under large crushing force. The clients need to have a medium maintenance for jaw crusher has been used for several months.

Besides the minor maintenance and medium maintenance, clients need to have the overhaul after the jaw crusher machine has worked for one year or two years. The overhaul is mainly to change the eccentric shaft and other large parts. When the eccentric shaft has been used for a longer time, it is easy to be worn. The clients need to check the machine regular based on the machine’s specification.