Machine Ways & Machine Rails

Detroit Edge Tool Company is the largest manufacturer of machine ways and rails in the world.

DETCO's machine way manufacturing facilities have the latest in CNC machining centers and grinders. With this precision machinery, DETCO produces high tolerance machine ways and machine rails demanded by machine tool builders. Machine ways and machine rails determine the basic accuracy of machine tools, assembly machines, and automation equipment. Flame hardened, or through hardened, DETCO's machine ways and machine rails are manufactured to OEM specifications. The chart below illustrates these tolerances.

Standard Specifications - Machine Way Tolerances
Closer Tolerances are
available upon request
Semi-finished Finished
Inches Millimeters Inches Millimeters
Dimensional +/- .003 +/- .075 +/- .001 +/- .025
Matched thickness or width .0015 .04 .0005 .013
Match at butt ends .001 .025 .00025 .006
Twist .002 T.I.R. .05 .001 T.I.R. .025
Flatness .0015/ft. .04/305 .0005/ft. .013/305
Straightness .0015/ft. .04/305 .0005/ft. .013/305
Squareness .0015 .04 .0003 .0075
Parallelism .0015 T.I.R. .04 .0002 T.I.R. .005
Hole location .001 .025 .0005 .013
Micro finish 32 0.8 8/16 0.2/0.4

DETCO manufactures The following products:

  • Cast Iron keepers
  • Guide Ways
  • Rails
  • Slide Ways
  • Transfer Bars
  • Tapered Gibs
  • Ways