The whole overhead  crane is made up of two end girders ,two main girders ,trolley and crane assembly; 
1、After the crane is carried to construction site, firstly, installing the bridge frame, and then main girder and end girder are connected together, and finally installing the handrail and accessories.
2、After the bridge frame is installed completely, and then installing the whole machine.
3、The trolley is installed on the bridge frame.
4、Installing the electrical appliance.
5、Crane adopts reducer which  is consist of motor, brake and speed reducer. End girder 1 adopt wheels without flange1 and horizontal guiding wheel; End girder 2 adopts wheels without double edges.
6、Trolley adopts reducer which is consist of motor, brake and speed reducer. And trolley adopts wheels with double edges.
7、The whole machine adopts frequency speed control with PLC control.
8、The crane adopts remote control operating.