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Room and pillar

12HM series

Continuous miners

  • Maximum cutting height (in) 138 - 237
  • Maximum cutting height (mm) 3 500 - 6 000
  • Minimum cutting height (in) 73 - 118
  • Minimum cutting height (mm) 1 860 - 3 000

Specifications

Metric Imperial (US)
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  • Cutter head design: Ripperveyor or solid head (12HM27 model)
  • Cutter head diameter (in): 47.25 - 62.5* (*optional higher power)
  • Cutter head diameter (mm): 1 200 - 1 588* (*optional higher power)
  • Weight (lbs): 190,000 - 405,000
  • Weight (kg): 86 180 - 184 090
  • Ground pressure (kPa): 209 - 317
  • Ground pressure (psi): 30 - 46
  • Ground clearance (in): 12
  • Ground clearance (mm): 305
  • Conveyor width (in): 38
  • Conveyor width (mm): 965
  • Tram speed (m/min): First - 4.6, Second - 9.1, Third - 19.8, Third (optional, turbo) - 25.9
  • Tram speed (ft/min): First - 15, Second - 30, Third - 65, Third (optional, turbo) - 85