Thanks to its easy transportability and capacity to install conductor drums without the need of a crane this design is the most popular amongst transmission line contractors worldwide. With the drum shaft being inserted conductor drums can be rolled into the drum stand and then lifted with two manually operated hydraulic jacks. Once in operating position, the drum shaft will be rested on a mechanical holding device, so that the hydraulic jacks are freed from any constant load. The drum stand (DST) is equipped with two disk brakes for stationery purposes. For the most efficient operation, we highly recommend the use of hydraulic drum-drive motors.