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Rail Path and Machinery Pad Milling or Machining

  • Rail Path and Machinery Pad Milling or MachiningMilling equipment is used to machine the Rail Path and Machinery Pads on new draglines and for major rebuilds on the same type of equipment.
  • Milling equipment runs on rails to machine circular paths for the swing rack and roller circle on the dragline.
  • Surface finish must be maintained within .0005 inch/inch with a flatness requirement of .020 inch over a circle up to 59 feet in diameter. The finished circular pad may be as much as 75 inches in width.