The B400 Bracing Series is heavier and stronger than B300 which helps to support excavations with loading up to 260 kN/m in frame without struts. The B300 and B400 series are compatible and can be use together in one frame by using special adapters.
The B400 Series Bracing is recommended for excavations from 4.5 m to 16 m and is also installed within the excavation using either excavators or cranes.
Sections are made of steel, grade S460. Similar like in B300 series frame is installed by using fine adjuster with 500 mm stroke and rough adjuster with 600 mm stroke. All of this assembled with removable hydraulic jack operated with manual pump.
