Choosing the right installation technology

KRINNER ground screw drivers

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.

Manual screw driver

KRE 17 – The affordable entry-level model

Manual screw driver

KRE 17 – The affordable entry-level model

With the KRE 17, you can quickly and efficiently install professional foundation solutions by hand. All KRINNER ground screws with a pipe diameter of 140 mm and a length of 1600 mm can be driven in with these machines.

Performance characteristics:

  • 230 volt
  • Approx. 3,000 Nm torque
  • Compatible with all Krinner screw driving attachments
Manual screw driver

KRE 20 – The powerful step up

Manual screw driver

KRE 20 – The powerful step up

In principle, the KRE 20 covers the same areas of application as the KRE 17, but it is more powerful with more torque.

Performance characteristics:

  • 230 volt
  • Approx. 3,500 Nm torque
  • Compatible with all Krinner screw driving attachments
Hydraulic excavator add-on (free pendulum)

KRB 250 – The powerful solution

Hydraulic excavator add-on (free pendulum)

KRB 250 – The powerful solution

With the KRB 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.  

Performance characteristics:

  • Base vehicle required: Excavator weighing from 8 t
  • Approx. 20,000 Nm torque
  • Hydraulic driver add-on
  • Automatic orientation in the X-axis
Hydraulic excavator add-on (drill attachment)

KRL – The perfect combination of precision and strength

Hydraulic excavator add-on (drill attachment)

KRL – The perfect combination of precision and strength

With the KRL, 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.    

Performance characteristics:

  • 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)
Self-driving caterpillar

KRD 30 – Lightweight but powerful

Self-driving caterpillar

KRD 30 – Lightweight but powerful

Just like the KRL, the KRD 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.   

Performance characteristics:

  • Approx. 8,000 Nm torque
  • 2.4 m drill lift  
  • Only 1.1 t transport weight  
  • Precisely-defined feed force

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