RIDUR concrete system shafts

The shafts are manufactured with monolithic concrete cones to absorb loads. You can achieve the required height with shaft rings in standard heights of up to 2.1 m. A wedge sliding seal and threaded sleeves for conductor installation are already set in concrete. The manhole cover height can be flexibly adjusted thanks to a continuously adjustable telescope (0-30 cm and 0-10° inclination). Matching ladders are either pre-assembled or supplied.