The Sandvik MR620 roadheader – an extremely powerful boom type roadheader in 100 ton class – has proven its unique transverse cutting technology in hard rock applications worldwide. Full torque to the cutterhead is provided even at speeds below 1.5 m/sec. The MR620 is an universal machine with an extended field of operation for mechanized roadway development in hard and abrasive rock formations.
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- Economical excavation of rock exceeding 100 MPa uniaxial compressive strength
- Robust telescopic cutter boom - optimum cutting power application, sump-in without tramming, straight face, even in high profiles
- Proportional load sensing hydraulic system - optimum utilization of energy
- High pressure pick flushing system - efficient dust suppression and cooling of cutting tools
- Modular design - easy maintenance and assembly/ disassembly
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| Dimensions (without optional equipment) |
| Machine weight | 128 t |
| Machine length | 15.5 m |
| Machine height | 2.5 m |
| Cutting profile |
| Cutting height | 5.4-5.9 m |
| Cutting width | 7.9-8.9 m |
| Installed electric power |
| Total installed power | 540 kW |
| Cutter motor power | 300 kW |
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