The Continuous Flight Auger (CFA) process is one of the quietest forms of piling, making it ideal for environmentally sensitive areas. The method enables piles to be formed in water-bearing layers, without the need for casing or bentonite, therefore it is considered as one of the cheapest types of deep foundations. Also it is suitable for constructing piles in some layer: silts, clays and in mixtures of layers. Our company provides continuous flight auger piles (CFA) ranging from 30 cm to 80 cm diameter & it’s depth up to 40 m. Each rig has a sophisticated instrumentation system to allow the rig operator to monitor drilling speed and torque.