Jaw crusher is an important equipment in primary crushing,it is used widely in mining and construction.It has the best technology maturity in all kinds of crushers.
The quality of jaw crusher is decided by the accessories’ quality,the main accessories of jaw crusher are: jaw plate,moving jaw,main-frame,toggle plate,main bearing, side board, spring, bearing support, Bracing bar and so on.
Jaw plate is a wear part which is often made of high manganese steel.it include moving jaw and fixed jaw, the size of the jaw plate is different according to the model of jaw crusher.
The side board is to protect the machine from rolling friction and sliding friction, it is a wear part and made of high manganese steel.
The frame is often made of casting or sealing-in, the material of frame often use casting steel, for example ZG35. The quality of jaw crusher plate can be guaranteed in good state if the frame is well casted.The eccentric shaft should be in good quality, since it is the standard to judge the jaw crusher quality.Bearing support is often made of casting steel. The brand and type of bearing is of great importance for jaw crusher.Shaft are made according to national standard, such as Timken, SKF bearing .
The function of toggle plate is to ensure the whole equipment running smoothly.When some materials that are not suitable to crush(such as materials that are too hard or too big) fed into the machine,the toggle plate will be broken.and the machine will stop so as to protect itself.
The spring is made of steel, such as 60Si2Mn.The eccentric shaft is an important accessory of jaw crusher, it is made of alloy carbon steels, such as 40Cr.
As an important crushing equipment in mining and construction. The quality and technology are very important for the quality of a jaw crusher. Before selection, you should pay attention to the quality of the accessories, credit of the manufacturer, capacity of equipment, and so on.