Features: Easy to operate Dual-cylinder two post Automatic stop bar Automatic arm unlocking Lifting fast,high-pressure cylinder Cable-equalization system Low energy consumption,low operational noise volume Automatic stop in the highest position Extra width between posts,no floor plate Long life hydraulic power unit Triplicate safety locks Plastic powder coat finish Specifications: Working noise :               75dB ( A ) Rise time :                        50s Drop time :                       40s Working temperature :     -5 ~ 40 Motor power :                   2.2Kw/220 ~ 380V Working pressure :           14Mpa relative humidity :             80% Using altitude :                 1000m lifting capacity :                 7000lbs/3200kgs Lifting height :                   1800mm width between post :        2777mm Whole height :                   3620mm Package size :                    1070  500 3740mm 20 container :                    14 sets 40 container :                    36 sets