The jaw crusher is widely used for medium crushing and fine crushing the ores and rocks with various hardness in metallurgy, mining, chemical, cement, construction, refractories and ceramics and other industrial sectors. The jaw crusher has the characteristics of great crushing ratio, simple structure, reliable work, uniform particle size, operating cost, easy maintenance and so on. The jaw crusher can crush the various soft and hard ore whose crushing gravel equipment compressive strength is not higher than 300MPa (MPa). The correct operation of the jaw crusher: After the preparation work, you should operate the machine according to the required order. When you start the main motor, you should pay attention to the system cabinet ammeter. After the start of 30 ~ 40s peak current, the current will be reduced to the normal work current value. In normal operation, the current should not exceed the specified value for a long time. After the normal operation of the crusher, you can actuate the feeder, and adjust the rotational speed of the feeder in order to change the volume of feed according to the size of the feed block and the operation situation of the crusher. Usually, the accumulation of material in the crushing chamber should be more than 2/3 of the height of the crushing chamber. The diameter of the material block is preferably not more than 50% into the feed port width. At this time, the production capacity of the crusher is the highest. When the diameter of the material block is 80% of the feed port width, the production capacity will be decreased significantly. If the material block is larger, it will cause congestion which will affect the normal production. The check preparation of the jaw crusher before starting:Carefully check if the main parts of the crusher are normal, such as jaw plate, bearings, connecting rods, thrust plate, rod springs, pulleys and V-belts and others. Fasten the bolts and other connection parts. Check if the protection devices are intact, such as pulley, flywheel housing. Check the auxiliary equipments are intact, such as feeders, belt conveyor, lubrication station, electrical, instrumentation and signal equipment. Check if there is material in the crushing chamber. If there are large pieces of material, you must removed the material before you can start the crushing chamber. Mobile impact crusher : http://www.china-crusher.com/impact-breaker1.htmlImpact crusher : http://www.china-crusher.com/impact-breaker1.html
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