Grundomat uses impacts of relatively high frequency but low intensity, using a man portable bottom driven cylindrical air hammer. It can be applied where rig access is wholly restricted and/or loads are very low (≤50kN) and/or where the pile lengths will be less than about 8 meters. The most common diameter used by Substruck is 100 mm.
- Minimal vibration,
- Low head room,
- Limited access,
- Minimal noise / disruption,
- Minimal spoil,
- No requirement for piling mats,
- Easily cut down,
- No dust.
- Limited to low loads (SWL 30-50kN),
- Limited applications for tensile loads.