At Liebherr-Werk Ehingen and Liebherr-Werk Biberach in Germany a new three-axle mobile folding construction crane, the MK 63, is under development.
The new unit will be the smallest in the MK range behind the four-axle MK 80 and the five-axle MK 100. Both these mobile folding tower cranes, or truck tower cranes, have a maximum capacity of 8.8 tons. The MK 100 lifts 1.7 tons at its maximum radius of 170 feet. There is also an MK 110 version of the MK 100 with more on board counterweight.
The existing models comprise a self-erecting tower crane from Biberach mounted on an Ehingen-built carrier.