Jaw crusher with crushing ratio, even granularity, simple structure, reliable operation, easy maintenance, operating costs and economic characteristics. Jaw crusher is widely used in many sectors in mining, smelting, building material, highway, railway, water conservancy and chemical industry, etc., not to exceed 320 MPa compressive crushing various materials. Jaw crusher purpose and scope 1, the series crusher is mainly used in metallurgy, mining, chemical, cement, construction, refractory and ceramic and other industrial sectors for the broken and crushing all kinds of hard ores and rocks with. 2, the series is best suited crusher crushing compression strength not higher than 300MPa (MPa) in a variety of soft and hard ore, the largest block of the material to be broken is not greater than the technical parameters specified in the table. Jaw Crusher Features 1, using the world-class manufacturing processes, selection of the most high-end production of materials. 2. More advanced movable jaw assembly, to make it more durable. Movable jaw assembly adopts high-quality cast steel structure, and by two large steel flywheel drive. Besides heavy eccentric shaft has also adopted forging billet for processing, which makes everything all JC series jaw crusher with exceptional reliability. 3, using integrated steel bearing structure. Overall steel housings to ensure full cooperation with the broken frame, but also greatly enhance the radial strength of the bearing seat, and split bearing not have this advantage. 4, using the finite element analysis techniques, the crusher has a higher strength. 5, the crushing chamber symmetrical "V" shaped configuration, so that the actual and nominal inlet width consistent with the width of the feed port. 6, the discharge opening to adjust more quickly and easily. European version of the JC series jaw crusher discharge port is equipped with wedge adjustment device which is simpler than the old gasket adjustment, safety and faster. 7, the choice of bearing size larger, higher carrying capacity. All JC series jaw crusher are equipped with the same specifications than other crushers larger and more durable eccentric shaft bearings, the higher carrying capacity and effective labyrinth seal greatly extend the life of the bearing. 8, the latest use of tooth shield, increasing the effective length of the jaw, and higher yields. Jaw crusher jaw crusher working principle works jaw crusher works for the song moving extrusion type, its working principle is: motor drive belt and pulley, through the eccentric shaft to move up and down movement of the jaw, when the movable jaw rises between the angle between toggle plate and moving jaw becomes large, thus promoting the movable jaw plate close to the fixed jaw plate, with the same time the material is crushed or split pieces to achieve the purpose of crushing; when moving jaw down, the angle between toggle plate and moving jaw smaller, movable jaw plate under the action of the rod, spring, leaving the fixed jaw plate, then the crushed material from the crushing chamber discharge port. With the continuous rotation of the motor for the periodic motion of mobile jaw crusher crushing and waste material, to achieve mass production. Jaw Crusher