Classic bored pile system which transfers torque and vertical crowd force to drilling tools via a telescopic kelly bar.

• Borehole wall is supported either by excess hydrostatic pressure or by drill casings.
• Installation of drill casings by rotary drive or by casing oscillators attached to rig.
• By using different drilling tools the system can be employed in all types of soil (including bedrock).
• Diameters 600 - 3000 mm 
• Drilling depth 15 - 90 m