... About 100Comprehensive working speed2 span in 3 daysAllowable wind speed in working condition(grade)≤62. Main structure and ... gearbox, transverse sliding rail, front connection frame, fixing device, rail clamping device, hydro-cylinder and pin shaft.Middle support: as ... power for telescopic support legse. Electrical systemMade up of motor and control cabinet with power about 130kw , connected by cable, ...