A short history of tower crane remotes

摘要

Radio remote controls are now standard equipment on most self-erecting tower cranes, and are even becoming common in some parts of Europe for top-slewers. Almost all self-erecting tower cranes come with a remote control. A growing number of top-slewing tower cranes use them as well. For example, the Potain lgo series of self-erecting cranes, and the new lgo T and MCT city-class tower cranes all use remote controls. All of the Liebherr Litronic cranes, and the EC-HM range and EC-B range can be used with remote controls. "In Europe, remote controls are used only with small top-slewing tower cranes, up to 100tm or 120tm," says Hans-Martin Frech, marketing director at the Liebherr Biberach tower crane factory. The limiting factor, he says, is that operators of larger cranes need to feel the crane reacting to the load so they do not operate too roughly.