We have the right screw-driving technology and know-how for all our KRINNER ground screws. We have a range of screw drivers that we designed and manufactured ourselves to meet the diverse range of possible applications. You can choose from electric manual screw driving tools, hydraulic excavator add-ons and self-driving caterpillars. Each machine fulfils different requirements and has specific advantages. However, all KRINNER machines have one thing in common: they are very light and simple to operate, but they are extremely powerful.
With the KR B 250 you can even drive very large foundation types into hard layers of the ground. It can even cope with rocky substrates with just prepared sounding drillings and nothing else.
- Base vehicle required: Excavator weighing from 8 t
- Approx. 20,000 Nm torque
- Hydraulic driver add-on
- Automatic orientation in the X-axis
With the KR L, you can install ground screws extremely precisely and exactly with corresponding power thanks to the drill guide. This way all KRINNER ground screws can be installed for all types of application, but in particular the large V-series ground screws.
- Approx. 15,000 Nm torque
- Quick-change device
- For projects with large foundations (diameters up to 140 mm; wall thickness up to 6.3 mm)
Just like the KR L, the KR D 30 provides an outstanding level of precision during installation thanks to its drill guide. In addition, due to its light and manoeuvrable design it can be used in particularly small and difficult to access construction sites. Adaptors for various different drilling tasks (down-the-hole-hammer, core drilling bit or augers) complete the performance profile.
- Approx. 8,000 Nm torque
- 2.4 m drill lift
- Only 1.1 t transport weight
- Precisely-defined feed force