The KR 20 is a powerful tool for manual driving. This tool is designed for one-person insertion of Krinner ground screws. Maximum torque is 4500 Nm.
 
The weight of the tool is 17,5 kg (175 N). With the aid of a telescopic bar and guide bars, the tool requires 32kg (320 N) to operate. 

With the telescopic bar retracted, the KR 20 is 1.70 m long and with the telescopic bar extended, the tool is 2.80 m long.

The KR B 40 Ground Screw Driver is designed for easy insertion into soil class VII (difficult rock) within minutes in combination with appropriate pre-drilling equipment.

​

The machine is to be mounted on a carrier machine (excavator) of 1.5 t to 3.0 t deadweight, in compliance with the tipping load chart of the excavator.

​

The excavator-mounted machine is equipped with a Lehnhoff 01/03 quick coupling. Please inquire about compatibility with other models.

The powerful KR 55 is suited to medium to large-scale projects. It easily drives in ground screws up to 2,5 meters in length. 

This tool is designed for one-person operation. Maximum torque is 5000 Nm. 

Combined with the corresponding mast, the KR 55 is 3.00 m long. The tool is 1.20 m wide. The corresponding mast can be tilted in four directions to a driving angle of 20°. Total height when the mast is erected is 3.70 m; height when lying is 1.70 m.

The KR B 60 Ground Screw Driver is designed for easy insertion into soil class VII (difficult rock) within minutes in combination with appropriate pre-drilling equipment.

The machine is to be mounted on a carrier machine (excavator) of 5.0 t
to 12.0 t deadweight, in compliance with the tipping load chart of the excavator.
The excavator-mounted machine is equipped with a Lehnhoff 08 quick coupling.

Please inquire about compatibility with other models.

For manual screw-in of smaller to medium sized ground screws up to ground class III KRINNER offers hand screw-in keys and various screw-in attachments.

For smaller ground screws in easy soluble soil KRINNER offers moreover screwing bars.