Jaw Crusher VS Impact Crusher

Jaw crusher and impact crusher are both the important equipments in the stone production line, but in some respects, there exist many differences between them. According to the working principle, jaw crusher and impact crusher have their own characteristics. In addition, from the using range of the two devices, there is also a big difference.

Main Application

Jaw crusher is one of the most popular stone crushing equipments in the word. Its widely used in mining, smelting, building material, highway, railway, water conservancy and chemical industry. Jaw crusher is ideally suitable for primary crushing. The highest anti-pressure strength of crushed material is 320 mpa.

Impact crusher with its superior performance and good performance, is widely used in highway construction, water conservancy projects, and construction, chemical, coal, coke and other industrial sectors with gravel processing and other fields. Impact crusher is suitable for secondary crushing and fine crushing.

Application Materials

Jaw crusher is mainly suitable for the big stones, granite, limestone, and construction waste.

Impact crusher due to the plate hammer easy to wear and tear, it is restricted in the application of hard material broken, usually used in coarse crushing, broken or finely in limestone, coal, calcium carbide, quartz, dolomite, sulfide ore, gypsum and chemical raw materials, etc. The broken material is the cubic shape and without tensility and cranny.

Working Principle

Jaw crusher working principle

This machine is driven by motor,the motor transmits power through belt, drives the moving jaw do periodic motion to the fixed jaw surrounding the eccentric shaft. The angle between toggle plate and moving jaw increases when moving jaw moves up. So the moving jaw closes to the fixed jaw. The stuff will be crushed in this process. The angle of Jaw Crusher between toggle plate and moving jaw decreases when moving jaw moves down; the moving jaw of Jaw Crusher moves away from fixed jaw by the pulling of rod and spring, and the products after crushing will be discharged from the outlet of Jaw Crusher.

Impact crusher working principle

This machine crushes materials with impact force.When the materials enter in the blow bar region, they're crushed due to high-speed impact from the blow bar and are thrown on the impact plates about the rotor for secondary crush. Then a supplies will likely be shot time for the blow bar again to the third crush. This method repeats prior to the materials are crushed to the needed size and discharged from the lower the main machine. The size and form of the finished powder might be changed by adjusting the gap relating to the impact rack and rotor support. The machine employs self-weigh security device in the back frame. When other objects enter the impact cavity, they'll be forced out of the machine through the impact rack in the front and back from the machine.

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