About the insurance function of Jaw Crusher’s Toggle Plate

Jaw Crusher has the advantages of high crushing ratio, evenly final product, simple structure, easy maintenance; low operation cost etc. jaw crusher is widely applied in the mining, smelting, building material, highway, railway, water conservancy and chemical industry and many other fields. It is mainly used to crushing materials whose compressive strength is not more than 320 Mpa.

Stone jaw crusher is mainly used for the primary crushing. At present, there are three types of jaw crusher: simple swinging type, complex swing type, compounded swing type. These three types jaw crusher need the toggle pate to

Toggle plate of primary jaw crusher not only can transmit the power to push the jaw plate to swing back and forth, but also can improve the safety index of jaw crusher. Change the length and size of the toggle plate can adjust the size of the discharge opening.


1.    Insurance Function of Jaw Crusher
When the impurity or some materials which are hard to crush, the back toggle plate will protect the main parts of jaw crusher from damage. The back toggle plate is usually made of steel, in the middle of which a groove or some small holes shall be made in order to reduce the cross section strength.

There is also a type of combination toggle plate which consists of two casted steel plates. When the uncrushable materials fall into the crushing chamber, jaw crusher will be over load and the huge crushing force will be transmitted to the toggle plate and break it off. In this way, the jaw crusher will stop.

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