Cabins in over hand travelling cranes are developed based on the human engineering principles. They have reliable security protection devices and comfortable operating environment, the wide field of vision, and the use of advanced welding technology and manufacturing processes .So that the whole cab appearance of smooth and beautiful. All doors and windows are up to seal anti-vibration requirements With the whole use of CNC machine tools for processing cold-rolled steel plate after the welding,It appear smoothly and the structure is intensity enough. The windows glasses are 5MM tempered glasses with the transparency higher than 80%,.There is a bottom window in the cabin.The interior of cabin is paved with insulating non-slip rubber carpet. The flooring is 3MM removable stell plate. And the connector of control cables have anti-wear treatment.Standard configuration: Overhand light, wall fans, bells, fire extinguishers, door limit switch Selectable configuration: linkage units, foot switches and other braking devices, air conditioners, switch box.