Features: Balanced and fast Dual-cylinder lifting system Chain-driven system Automatic safety locks,easy to operate Low ceiling design Cable-equalization system Triplicate safety locks Plastic powder coat finish . Working noise í_ 75dB ú¿ A ú¬ Rise time 50s Drop time 40s Working temperature -5 íµ í½ 40 íµ Motor power 2.2Kw/220 í½ 380V Working pressure 14Mpa relative humidity 80% Using altitude í_ 1000m lifting capacity 3200kgs/7000lbs Lifting height 1800mm . width between post 2680mm Whole height 2757mm Package size 1070 í- 450 í- 2977mm 20 container 24sets 40 container 48 sets. Two Points Lock Release: Manual,PneumaticíóElectric.(Optional).