Jaw plate

The movable and fixed jaws of the jaw crusher are in direct contact with the materials and are used to squeeze all kinds of hard materials. It is the most important wear part of the jaw crusher. So how long can a set of jaws be used?

In fact, the service life of the jaw plate is mainly determined by the material of the jaw plate and the hardness of the material.

Jaw plate material

Usually most of the jaws are made of high manganese steel (ZGMn13 or ZGMn13-4). High manganese steel has high impact resistance and excellent wear resistance under strong impact and wear conditions, and is the preferred material for wear parts of primary crushing equipment.

Material hardness

Combining our large amount of usage data, we analyze five common host rocks in China:

Limestone (Mohs hardness 3-4)

Using ZGMn13 jaws to crush limestone, the service life of the movable jaws is usually 1300-2000 hours. The service life of the fixed jaw is 1000-1500 hours.

Use ZGMn13-4 jaw plate to crush limestone, the service life of the movable jaw plate is usually 1500-2100 hours. The service life of the fixed jaw is 1000-1500 hours.

Tuff (Mohs hardness 4.5-6)

Using ZGMn13 jaw plate to crush tuff, the service life of the movable jaw plate is usually 500-650 hours. The service life of the fixed jaw is 280-320 hours.

Using ZGMn13-4 jaw plate to crush tuff, the service life of the movable jaw plate is usually 500-700 hours. The service life of the fixed jaw is 450-600 hours.

Basalt (Mohs hardness 5-5.7)

Using ZGMn13 jaw plate to crush basalt, the service life of the movable jaw plate is usually 300-380 hours. The service life of the fixed jaw is 280-320 hours.

Using ZGMn13-4 jaw plate to crush basalt, the service life of the movable jaw plate is usually 330-400 hours. The service life of the fixed jaw is 280-320 hours.

Granite (Mohs hardness 5-6.6)

Using ZGMn13 jaws to crush river pebbles, the service life of the movable jaws is usually 300-350 hours. The service life of the fixed jaw is 280-300 hours.

Use ZGMn13-4 jaw plate to crush river pebbles, and the service life of the movable jaw plate is usually 320-400 hours. The service life of the fixed jaw is 280-320 hours.

River pebble (Mohs hardness 6.5-8)

Using ZGMn13 jaws to crush river pebbles, the service life of the movable jaws is usually 250-320 hours. The service life of the fixed jaw is 250-300 hours.

Use ZGMn13-4 jaw plate to crush river pebbles, and the service life of the movable jaw plate is usually 280-350 hours. The service life of the fixed jaw is 260-300 hours.

The above data on the service life of the jaws is for reference by the quarry operators. If you have any questions or purchase jaws, please contact us.

Leave a Comment

Your email address will not be published. Required fields are marked *