Unusual and extreme project for Simex

The TF 1100 drum cutter was required to operate in temperatures down to 40 degrees below zero. (Photo: Simex)

The excavation was carried out during the winter in extreme weather conditions but necessary for the completion of the work. The very low temperatures that make the ground frozen in permafrost conditions, in fact, allowed the transit of heavy vehicles and the effective excavation of the ground.

During the spring thaw, the whole area turns into swamp, not passable by heavy machines.

The Simex attachment could maintain productivity of 20 m³/h in extreme environmental conditions and at the same time guaranteeing high reliability, despite strong stresses and almost seamless processing.

Features of the drum cutter include a direct drive hydraulic piston motor, which directly delivers power to the drums without mechanical transmission components, guarantees high torque and high performance, shaft transmits motion only and bears no load thanks to double support bearings for each drum. Filter on feed and on drainage lines, both integrated, protect the hydraulic system from any external impurities.

In this context, Simex TF drum cutter granted a double advantage – the excavation of a narrow and deep trench; and a milled material suitable to be immediately reused on site in the excavation backfilling.