... Long life time 5. Annual output: 360 sets Our QTZ80(TC6012) Tower Crane has merits as follows:1.Hoisting mechanism:three ... ,trolley rope-off protection, trolley. Technical Characteristics of QTZ80(TC6012)Working condition/mMin 2.2Max 60Hoisting height/mStationaryAnchorages45200Max hoisting load ... .7*2Power380V .50HZ In serviceOut of serviceReaction F190t118tReaction F270t92t TC6012 Tower Crane 6t