The wire rope broken wire number, corrosion (wear) amount, and the deformation, use the length and fixed state should comply with the national standard provisions,the selection of wire rope should comply with the requirements......

With the increase of the use frequency of the crane, all kinds of accidents is rising, the most common accident was overturned and folding boom. The main cause is overturned accident crane lose stability. The cause of the loss of stability is hanging heavy overload......

SC/SCD type construction lifter is a kind of the gear, rack drive, with crane cage manned, small, and along the guide frame for vertical transportation of construction machinery. It can be layered conveying for all types of building materials and construction personnel......

Ac motor in the operation due to friction, vibration, insulation aging, and other factors, the hard to avoid failure. If these faults in time, found out and check, can effectively prevent the accident......

The tower to purchase must have effective production license of professional manufacturers to buy, and the manufacturers to provide the quality certificate, high strength bolt connection......