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1.The [http://www.crusher-cn.com/jaw_crusher.htm jaw crusher] by the change of the gap in the crushing cavity .The gap is opened and closed by the gyration of main shaft, which is derived by motor through cone gears.

2.The jaw [http://www.benconq.com crusher] is of high reduction ratio, high performance, low power consumption, and uniform size products. The crusher machine has been used in the secondary and tertiary crushing. 

3.The [http://www.benconq.com/jaw_crusher.htm jaw crusher] consists of body frame, transmission shaft, eccentric sleeve, cone bearing, breaking cone, supporting sleeve, adjusting sleeve, feeding part,spring,elastic coupling ,lubrication part , electric part, ect

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[http://www.jawcrushers.com.cn Crusher]:

The [http://www.jawcrushers.com.cn/jaw_crusher.html jaw Crusher] is widely used for crushing of hard and crispy materials, such as rocks, grinding materials, refractory materials, cement clinkers, quartzite, iron ores and concrete aggregates.The sand making machine is especially suitable for the sand and sandstone making for construction and road paving. The crusher can cycle many times with the close circuit and the sieve device will control the granularity of finished products.This vertical shaft impact crusher is applied widely for the powder process of mineral product including mental and non-metal ore, fireproof material, bauxite, diamond dust, glass raw materials, architectural materials, artificial sand and all kinds of metal ore materials, especially which has more advantages than any other machines in processing the more and most hard materials