The fast-erecting crane programme of lattice construction extends from 26 to 120 mt. These cranes have various jib lengths and hook heights as well as simple erecting kinematics.

These cranes can be transported on the road as complete ready-to-use units. They need very little erecting space and, thanks to the 34 K to 120 K.1 cranes' quick-climbing system, complete tower segments can be installed quickly and easily, with the under-hook height adjusted to suit the construction site. These cranes have both the 45° obstruction-avoidance angle and the 30° raised-jib working angle.

The 42 K.1, 81 K and 120 K.1 are furthermore also available with crawler tracks.