... Speed: single or inverter 4.A factory QD5-50/10T Model Double Girder Crane1.IntroductionThis crane mainly consists of ... /30tons,160/32tons,200/50tons,400/80tons,560/250tons.6. Technical parameters for reference: Lifting Capacity(T)51016/ ... 30Cabin control45,6045,6045,6045,6045,60Lifting height(m)6,9,12,18,24,306,9,12,18,24Span ... on the span and lifting weight) QD5-50/10T Model Double Girder Overhead Crane