Features: 1) 4,000kg lifting capacity 2) Electric control system 3) Padded roof protection bar with cut off switch 4) Gear type auto arm locking mechanism 5) Cable remote control for convenient operation and safety 6) Dual balancing cable for precise carriage movement 7) Engineered self lubricating poly urethane carriage guide Specification Working noise75dBA Rise time50s Drop time40s Working temperature-540 ℃ Motor power2.2Kw/220380V Working pressure14Mpa relative humidity80% Using altitude1000m Lifting capacity4T/9000LB Overall length3750mm Overall width3395mm Maximum lifting height1850mm Motor capacity220V/380V Drive through2430mm Lock releaseElectric