Mechanism of topkit tower crane QTZ145F10( FO/ 23B) Hoisting 45LVF 25 m/ min 0-34 0-64 0-94 0-17 0-32 0-47 t 5 2.5 1.25 10 5 2.5 70RCS 25 m/ min 0-40 0-80 0-20 0-40 t 5 2.5 10 5 75LVF 25 m/ min 0-74 0-136 0-200 0-37 0-68 0-100 t 5 2.5 1.25 10 5 2.5 Trolleying( m/ mi n) 0-55 Slewing( r/ min) 0-0.7 Travelling( m/ min) 0-30 Power supply 380V/ 50HZ 440V/ 60HZ Necessary power supply 75KVA Mast section 1.6* 1.6* 3 m 2* 2* 3 m Max height( m) Mast section Stationary type Travelling type Internal climbing type 1.6* 1.6* 3 m 44.8 49.4 243 2* 2* 3 m 58.6 61.6 243