Techcrane has recently delivered the first ever all electric drive telescopic crane: Model GT30. It has a max nominal capacity of 15 tons driven by a stepless AC Variable Frequency Drive (VFD). Techcrane’s Rack and Pinion Drive System or RaPiDStm is coupled to one of the motors. A boom winch assembly allows for the “luffing” action. The swing and main winch are also driven in the same manner.