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In order to improve the current PE jaw crusher working property, we commit ourselves to research for latest technology and quality control. Hydraulic jaw crusher and mobile jaw crusher are newly developed with higher upgrade standard. However, hydraulic and mobile jaw crusher are expensive. So we have updated some property of jaw crusher to make it more stable with higher crushing strength. We have also put PEX jaw crusher into market. For detail information, please feel free to contact us.Then, let`s come to jaw crusher working principle. Jaw crusher adopts curved extrusion mode. Belt and pulley is rotating driven by motor. With eccentric shaft force, movable jaw will do periodical rotation to make a moving distance gap with fixed jaw. When the movable jaw gets far from fixed jaw, the lower side of fixed jaw and movable jaw will form a crushing chamber. And material will be crushed, then go out from lower side. The brief working motion is the above. As for the detail working catalogue, you can send us email and our engineer will explain for you.Jaw crusher is necessary equipment in aggregate sand making production line with large scale. Jaw crusher mainly acts as one primary crushing plant in the first phase of the production line because it is of high crushing force, big feeding size port and stable structure. Because the first crushing phase is with heavy load, good quality primary jaw crusher is essential for complete sand making production line. Hongxing has monitored every manufacturing step for quality control carefully during machine manufacturing flow. The final jaw crusher is tested for double times before being sent for use. So customers can rest their heart on the stable property and good quality.We should first know what structure jaw crusher adopts. Jaw crusher structure: main frame, eccentric shaft, fixed jaw plate, movable jaw plate, flywheel, adjusting screw, reset spring, toggle plate, adjusting toggle seat.sand making equipment: http://www.info-crusher.com/goods/sand-machine.html