shop crane is in a certain range of vertical lifting and carrying heavy loads of multi-level action lifting machinery. Also known as crane. At present, the major heavy lifting Equipment Co., Ltd. Guangdong Shun launch has gradually canceled hoist with function. The main features of the tire cranes are: its driving cab and crane cab combined, is evolved by the crawler crane (crawler) will be tracked and walking stents have become part of the running gear tire chassis, overcome The disadvantage of crawler crane (crawler crane) track shoes on pavement damage, belonging to material handling machinery. Shop Lifter equipment to do some work is characterized by intermittent movement, that in a work cycle Reclaimer, transport, unloading and other movements of the respective agencies are working alternately, development and use of cranes on the market more widely. Because they are not leg slings and hoists with often some accidents, driving speed are more cranes (crawler) fast; job stability, lifting capacity, can hoist travel within a specific range, but must ensure that the road smooth solid tire pressure to meet the requirements, hanging above the ground shall not exceed 50CM; prohibition to walk long distances with a load. To ensure the safety of operations, the current domestic basically prohibit the outriggers are not hoisting operations.