Crane safety devices: Lifting Characteristics table. Set in the wall on the lower front side of the control room, which lists the ratings of various arm lengths and various operating margin down from the weight and height of lifting 35 tons crane for inspection during operation. When the job of lifting 35 tons crane price, must not exceed the values ??specified in the table. Crane structural classification: light small lifting equipment. Features small light lifting equipment is lightweight, compact and easy operation used 35 tons crane much money, the operation range projection point, line oriented. Light small lifting equipment, usually only a lifting mechanism, which only allows for a single heavy lifting movement. Electric hoist with a compact, lightweight, safe and reliable, high degree of component commonality, interchangeability, high lifting capacity, easy maintenance, is widely used and popular light lifting equipment.