World's highest demolition machine : SK3500D
This is the world's highest crane for dismantlement. It has the highest working range over 65 meters (213.3 ft). Right now, they are seeking official recognition by thr Guinness Book of Records.
(Kobelko-Kenki/ via Weekly Teinou Bee Woman: Approx. $10,000,000)
RelInfo: how stuff works: How Do They Grow?
(1) The crew hangs a weight on the jib to balance the counterweight. (2) The crew detaches the slewing unit from the top of the mast. Large hydraulic rams in the top climber push the slewing unit up 20 feet (6 m). (3) The crane operator uses the crane to lift another 20-foot mast section into the gap opened by the climbing frame. Once bolted in place, the crane is 20 feet taller! Once the building is finished and it is time for the crane to come down, the process is reversed -- the crane disassembles its own mast and then smaller cranes disassemble the rest.
