Trench cutters are used to produce diaphragm walls in thicknesses of 500 mm to 3200 mm. As they transport the spoil continuously, they are particularly suitable for depths of more than 40 m.
Trench cutters operate with two opposite-running cutter wheels which, depending on configuration, are suitable for a wide variety of strata, including even ultra-hard rock. The soil material is cut by the rotation of the wheels,
crushed, mixed with slurry and transported to the surface by a suction pump.
Hydraulic steering flaps control the cutter in both horizontal directions. The penetration depth and speed are regulated by controlled activation of the cutter weight.