The Sandvik MT520 is a new roadheader in the 91-t class, built for increased productivity and safety. The machine has easily exchangeable modules, which form the basis for cost-effective excavation in cutting conditions up to a compressive strength of around 100 MPa, where the ICUTROCTM hard-rock capability is not required. The MT520 can be fitted with an 8 m cutting height module, an in-line cutter head, on-board diesel power pack, slewing belt conveyor, water hose and cable reel, and a high-pressure water spray ring system for efficient dust suppression and pick cooling.
The roadheader cab is fully air-conditioned with ergonomic controls mounted on shock-absorbers and active stabilisation of the machine during cutting minimises vibrations. An integrated dust-extraction system ensures a healthy work environment for the tunneling team.
For maximum cutting performance in soft ground, the cutter head can be changed in less than a shift. The full cutter motor power of 315 kW is available both on the transverse and on the in-line cutter head model. The machine also has modules for automatic fire suppression, directional control system, profile control and visualisation.
Main dimensions:
• Total weight: 99-104 t
• Cutter head: 315 KW
• Maximum cutting height: 7.1 m (8.0 m with extension module)
• Maximum cutting width: 10.3 m (10.8 m with extension module).
