SOB augers
The SOB method has been an integral part of deep foundation for years; nevertheless, many of the augers available on the market cannot withstand the required torques and tensile forces. LEFFER SOB augers are designed for torques of up to 470 kNm and are available in 600 mm, 900 mm and 1200 mm diameters.
Pulling forces of up to 900 kN can be accommodated. This ensures safe pullback during concreting and SOB pile foundations of large diameters and at depths of up to 30 m.