Rail Razor Mowers


Overcome the obstacles of workforce safety and excessive expense that come with mowing around guardrails and signposts. The innovative, efficient and pretty darn ingenious Diamond Rail Razor is a must-have. Our newly re-designed Rail Razor is unlike anything you've ever seen.

  • Cuts around entire post
  • Mows up to an 8" x 10" post
  • Front-mount unit mows left or right-hand
  • Mows 24" on either side of post
  • Mounts to a wide variety of tractors, as well as skid-steers
  • Alternative to high labor and asset costs
  • Safer than a crew working on the side of the road

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First First First


Diamond provides you with the ultimate alternative to weed-whacking and budget-busting. The Diamond Rail Razor is one of our sharpest, most innovative offerings ever.

No more road crews risking their lives to trim around guardrail posts and signs. Simply drive in a straight line parallel to the rail as the deck height self-adjusts to the terrain and automatically cycles around the post for minimal operator fatigue.

Mowing speed is approximately 1 mph. (How many miles can you weed-whack in an hour?) This is an innovation that makes sense at every turn.

Rail Razor Features:

  • Low hydraulic requirements allow you to run it off of many tractor or skid-steer systems.
  • Replaceable rub pads protect both the post and the mower.
  • Self-adjusting ROSTA belt tensioners.
  • Cost-effective, easy-to-maintain blades.
  • Blades are sharpened on both sides for twice the life.
  • Blades provide exceptional loft for a clean cut.
  • Gentle enough to mow around signposts without damage.

Rail Razor Features:

  • Mows around up to 8" x 10" posts.
  • Guardrail must be at least 16" from the ground with a 3" cut height.
  • Angular adjustment from -19° to +45° side-to-side and +26° to -6° front-to-back.
  • Requires 12 GPM from the tractor’s remotes, otherwise optional 3-pt reservoir and PTO pump.
  • Cutting head weighs 450 lbs.
  • Posts must be spaced at least 6 ft. center to center.
  • 48" wide cut, unexpanded.
  • Mows 24" on both sides of the post.
  • Cut height from 3" up to customer's preference.
  • Tractor centerline is 79" from the guardrail when mowing.
  • Automatically cycles around posts.
  • Gauge wheels follow the terrain.


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