This series of plantform two traction wheel , four wheel mobile. Plantform lifting power for two-phase, three-phase or DC 24V, 36V power supply, also can be used as power to control diesel engine, with manual control and electric control, with hand pressure pump and manual descent device, normally used in the case of power failure, and can add flexible plantform, can be extended to the desired position in the plantform length deficiency. The lifting height of 4 meters to 20 metrs, special places can be equipped with explosion-poof motor, explosion-proof electric apparatus. Features: it is flexible,stable lifting, convenient operation, safe use and other characteristics, mainly for factories, airports, offices, shops, station and architectural decoration industry.