Stone crushing machinery - jaw crusher

A jaw crusher is a type of stone crushing machinery used in the quarrying and mining industries to crush raw materials like stone, coal, ore, and more. It is one of the most common types of crushing equipment and is widely used in various industries, including construction, road building, and mineral processing.

The jaw crusher works on the principle of a movable jaw plate and a fixed jaw plate, which are mounted on an inclined frame. The raw material is fed into the crushing chamber between the jaw plates, where it is crushed under the pressure of the moving jaw plate against the fixed jaw plate. The crushed material then passes through the discharge opening at the bottom of the crusher.

There are several types of jaw crushers available, depending on the size and capacity requirements of the application. Some common types include:

1. Laboratory Jaw Crusher: Designed for small-scale applications and laboratory testing, these crushers are compact and portable, with capacities ranging from a few tonnes per hour to several dozen tonnes per hour.

2. Small Jaw Crusher: Ideal for crushing smaller materials and laboratory samples, these crushers have a capacity of up to about 100 tonnes per hour.

3. Medium Jaw Crusher: Suitable for medium-sized operations, these crushers can process materials with a hardness factor up to about 180 MPa and have a capacity of up to several hundred tonnes per hour.

4. Large Jaw Crusher: Designed for heavy-duty applications, these crushers can handle larger materials and have a capacity of up to several thousand tonnes per hour.

Jaw crushers are known for their rugged construction, durability, and efficient crushing performance. They are also relatively easy to maintain and operate, making them a popular choice for stone crushing applications. When selecting a jaw crusher, it is important to consider factors such as the type of material to be crushed, the desired output size, and the capacity requirements of the project.