mainly used to lifting crane equipped with

Into items, it is mainly used to lifting crane equipped chainb lock appropriate spreader can also after lifting material and liquid material. Crane work is characterized by intermittent movement, that is in a working cycle, to pick up, transport, unloading corresponding mechanism is work alternately. The agencies are often in starting, braking and running manual hoist condition of the positive and negative direction. The classification and features of the crane crane according to the structure classification according to the structure is divided into boom crane type crane and bridge type crane. Crane overview the status quo of hangzhou a manufacturing unit with an electric hoist bridge crane load across a runtime easily occurs in the car derailment problem, the crane lifting weight of 10 (t vice hook for 3 t), lifting height of 8, to 28 m span, the car track is 1600 m, work level for A4, no machine design. The crane has been in operation for more than five years, usually use frequency is higher.