QT20(TC3006)is the horizontal jib frame, trolleying structure, slew on the top tower crane. It adopts the double wire winding electromotor series resistance velocity modulation. And the operating performance is reliable. The tower crane foundation may be press heavily -like or fixed type, energy conservation and environmental protection. This machine all necessary select the domestic famous brand product, the main electrical part is selected from imported completely, the safety device is reliable. It is widely adapted in each kind of large-scale architectural construction. This kind machine is good capability and low price, it is more suit for low or small building.Technical ParameterItem Technical Parameter Working Distinction of Lifting Structure m4Working Distinction of Slew Structure m3Working Distinction of Trolleying Structure m3Rated Lifting Torque(kN.m)200Max.Lifting Weight(t)2.5Working Range(m)2.5~30Rated Lifting Weight of Max Range(t)0.6Lifting Speed(m/min)5.6/23.1Slewing Speed(r/min)0.7Jibbing Speed(m/min)30.5Raising Speed(m/min)0.6Total Power(kW)14.7Fixed Lifting Height(m)25Attached Lifting Height(m)50Attached Total Height(m)55.2Fixed Total Height(m)29.8Balance Weight3Total Weight(t)11