DymaxRail X2-15T hi-rail attachment on track excavator

INNOVATIVE RAILROAD MAINTENANCE EQUIPMENT

DymaxRail manufactures hi-rail attachments, rail carts, road-rail trailers, and custom maintenance-of-way equipment for Class I railroads, shortlines, transit agencies, and rail contractors. Its X2 Hi-Rail System converts existing excavators and backhoes for rail work without permanent machine modifications.

Rear rail gear installed on 15-ton track excavator with DymaxRail X2 hi-rail system

Transform your excavator or backhoe into a hi-rail machine.

Dymax Rail Rider is a fully detachable hi-rail system for new or used backhoes and excavators. With this simple, stable attachment, you don’t need a dedicated rail machine.

  • No cutting. No welding.
  • No permanent modifications.
  • Brand agnostic.
  • Installs in days, not months.
  • Protects OEM warranty and resale value.

railroad maintenance attachments for every task

Your hi-rail machine is only as productive as the attachments on it. These are the ones your crew will reach for every shift.

Move Equipment and Materials by Road or Rail

WHERE NO PRODUCT EXISTS, WE BUILD ONE.

FIVE GENERATIONS OF BALDERSON ENGINEERING

Dymax five-generation heavy equipment manufacturing heritage

The Balderson family was building innovative, durable attachments before most of the major equipment manufacturers existed. Five generations in, the problems have changed, but the starting point is the same.

Our customers describe a problem. We figure out how to build the solution.

Today, that work continues at DymaxRail — innovative hi-rail systems, rail carts, and specialized rail machines. If your problem is outside of the box, bring it to us.

CUSTOMER STORIES

X2 Hi-Rail Systems on Cat and Deere Excavators: 2026 Deliveries

See the X2 hi-rail systems that are working on rail from Arizona to Alberta to NYC.

LO-RAILER MOVES EQUIPMENT & SUPPLIES AFTER CALIFORNIA RAIL WASHOUT

When coastal erosion severed the only rail line between San Diego and LA, a DymaxRail Lo-Railer supported the emergency response.
Crawler crane delivered to the bridge replacement site using rail-based equipment transport.

Kiewit Bridge Rebuild with 100-Ton DymaxRail Machinery Cart

Remote access? No problem! Kiewit hauled cranes, girders, and drilling equipment to the bridge site with a 100T rail cart.
Close-up of DymaxRail cart with drilling equipment positioned directly over the dam deck during deep anchor shaft drilling.

Nicholson Uses Custom Dymax Rail Cart to Reinforce Eucha Dam

A removable decking system transforms this custom 30T rail cart into a mobile drilling platform.
Hi-rail excavator attachment mounted on an excavator during an on-track rail maintenance orientation in Alabama.

Hi Rail Excavator Orientation with SDAC Rail

SDAC replaces 500 rail ties a day with a Dymax Rail Rider hi rail attachment, cribbing bucket, tie inserter, and thumb.

How Vossloh Moves Heavy Milling Equipment by Rail

This road rail trailer handles heavy equipment without the need for cranes.
Back end of a large metal structure on a track dolly cart at night. It is rolling away from the viewer.

Track Dolly Carts Help Ducci Move Heavy Structures on Metro-North

Cool video showing night work on Metro North railroad.

Low Profile Rail Cart Improves Tunnel Access for Maintenance Crew

Sound Transit uses a DymaxRail Low Profile Machinery Cart to move man-baskets and aerial lifts through tight tunnels.

Custom Built Road Rail Tag Trailer with Hi Rail Gear

Metro North needed faster track access and the ability to reach remote worksites by rail.

TELL US WHAT YOU’RE WORKING ON.

TOGETHER, WE WILL IDENTIFY THE RIGHT SOLUTION FOR THE JOB.