Advanced design, compact layout, original shape and long lifespan Hydraulic system keeps both platforms at level position; Mechanical protection device throughout the travel distance provides safety and simple operations; Maintenance-free bearing with auto lubrication offers a long lifespan; Surface-mounted or ditch-mounted installation upon request. Specification : Capacity: 3000kg Lifting height: 330-1930mm Lifting time: 40s Power supply: 220V/380V/3kw Air supply required: 5-8kg/cm2