Crusher can be divided into categories according to medical crushers and mining crushers. Which is mainly used for medical gravel stone crushing, the general resonance and other ways of stone crushing, avoid risks caused by surgery. According to the principle of crushing, heavy-duty mining machinery used crushing machinery are jaw crusher, impact crusher, vertical shaft impact crusher, hydraulic cone crusher, hammer crusher, hammer crusher, roll crusher, compound crusher, cone crusher, two-stage crusher, gyratory crusher, mobile crusher. Gyratory crusher cone crusher is the use of conical cavity in the housing cycle in the movement of materials have squeezed split and bending role in crushing a variety of large-scale crushing machinery hardness of ore or rock. Broken cone with the spindle bearing beams in the middle of the bush, which is placed in the lower end of the hollow shaft of the eccentric. Bushings rotation, broken cone machines around the center eccentric cycle exercise its crushing action is continuous, so the efficiency is higher than jaw crusher. By the early 1970s crusher, large gyratory crusher has been able to handle material per hour, 5,000 tons, the largest feeding diameter up to 2000 mm. Gyratory crusher used in two ways to achieve nesting population adjustment and overload insurance: First, using mechanical means, top of their spindle nut adjustment gangue crusher, rotate adjusting nut, cone crusher can be lowered or raised, so that the discharge mouth becomes larger or smaller, overloading, cut off the drive pulley on the insurance sales to achieve the insurance; the second is the use of hydraulically hydraulic gyratory crusher impact crusher, the shaft is located in the hydraulic cylinder plunger on a volume change under the plunger hydraulic oil can change the upper and lower cone crusher location, thus changing nesting population size. Overloading double roll crusher, the spindle downward pressure, forcing the plunger into the hydraulic oil in the hydraulic system accumulator, broken cone ensuing decline to increased nesting mouth with material into the crushing chamber of non-broken (iron, wood, etc.) in order to implement the insurance. Crusher | crusher manufacturers | Lei Machinery (certified merchants) are provided by Lei Machinery Co., Ltd. Zhengzhou. Zhengzhou Lei Machinery Co., Ltd. (www.hnzljx.net) (www.hnzljx.net) is specialized in "Raymond, shredders, mills," the business, the company adhering to the "honesty, hard service" concept To provide you with the highest quality products and services. Welcome to inquire! Contact: Manager.