Mechanism of topkit tower crane GH5015 Hoisting( m/ min) 5.4 30 60 2.4 15 30 Hoisting( t) 4 4 2 8 8 3 Trolleyin g( m/ min) 15-38-58 Slewing( r/ min) 0-0.7 Travelling( m/ min) 12.5/ 25 Power supply 380V/ 50HZ Necessary power supply 60kva Mast section 1.6* 1.6* 3 m Max height 120.8 m