Double girder overhead crane is composed of box type bridge frame, lifting trolley, crane traveling mechanism, and electrical system. It is rely on the bridge frame along the workshop orbital direction moving longitudinal, the trolley along the main beam direction moving transverse and the hook lifting movement to work. It could be classified into several working duties,e.g.A5,A6,A7 according to the working frequency and pure working time. Double girder overhead crane allocation hook used in machining, assembly workshop, metal workshop, metallurgy and casting workshop and warehouse handling work; allocation of grab is suitable for metallurgy, cement, chemical or open fixed span in bulk material handling.

Safety system
Weight overload protection device.
Top quality long time bearing polyurethane materials buffer.
Crane travelling limit switch.
Voltage lower protection function.
Emergency stop system.
Current overload protection system and so on.