Jaw crusher is a stone crusher that consists of moving jaws and fixed jaws, simulating animal’s jaws movement. It is widely used in medium-sized crushing of various ores and bulk materials in industries such as mining, smelting, building materials, roads, railways, water conservancy and chemical industry..According to the width of the inlet, it is divided into three types: large, medium and small. The feed inlet width is larger than 600MM for large machines. The feed inlet width is 300-600MM for medium-sized machines. The feed inlet width is less than 300mm for small-sized machines

When will it need to adjust the outlet size of jaw crusher?

1. User has certain size requirements for the outlet material after determining jaw crusher model.

2. As the continuous wear of the tooth plate, the discharge outlet gradually becomes larger, and the product continuously becomes thicker. In order to better coordinate with the secondary crusher, the size of the discharge port needs to be adjusted regularly.

What are the methods to adjust outlet size of jaw crusher?

1. Toggle plate adjustment. In addition to transferring power to make movable jaw plate swing back and forth, safety insurance, toggle plate also could ajust outlet size by changing its length.

2. Gasket adjustment.Put a set of gaskets between the back support seat of the rear toggle plate and the back wall of the rack, increase or decrease the number of gaskets or change its thickness, so as to reduce or increase the dischargeo utlet of jaw crusher.This method has the advantages of compact structure and reliable adjustment. So it is widely used in large and medium-sized jaw crushers.

3. Wedge adjustment.Adjust with two wedges placed between the backseat of the toggle plate and the frame. This method is suitable for small scale jaw crusher.

Large jaw crusher can not be adjusted by human power, it generally uses hydraulic adjustment. Small jaw crusher generally uses wedge adjustment or support device adjustment. If the force is not enough, a jack tool could be helped.

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