Rail Runner LT

PRICE

All Position Welding & Cutting Travel Carriage

The Steelmax Rail Runner LT is a digitally controlled rail mounted travel carriage designed for the mechanization of welding and thermal cutting processes. Mechanized control of the welding or cutting torch allows continuous welding or cutting, increasing operating factor and deposition rates in welding applications. The Rail Runner LT features a rack and pinion drive system with electronic speed control that produces weld bead geometry that is exact to your required specifications, reducing costly over welding and minimizing filler metal usage.

The Rail Runner LT can be used with semi-flexible rail for plate and tank applications with a minimum diameter of 32 ft (10 m) and can be adapted to ring rails for pipe and tube applications.

Standard ring rails are available for tube diameters from 8” (200 mm) up to 10 ft (3 m). Custom rolled rails can be used for tube diameters between 10 ft (3 m) and 32 ft (10 m).

An optional vacuum system allows the rails to attach to non-ferrous surfaces such as stainless steel and aluminum.

The Rail Runner LT is an economical system for a wide range of welding and cutting applications on flat or curved plate, tube and pipe.

Applications: Trailer manufacturing, truck tanks, oil tanks, water storage tanks, pressure vessels, bridge girders, structural steel, structural towers, panel welding, transformers, shipyards, and any application demanding long continuous welds.

FEATURES

  • Compact, lightweight design
  • Closed-loop encoder insures accurate speed control
  • Rack and pinion drive
  • Digital LED display for pre-setting travel speed
  • Automatic arc on/off initiates welding and travel simultaneously
  • Suitable for a variety of circumferential and irregular surface applications down to a minimum diameter of 8″ (200 mm)
    • Ring rails for diameters from 8″ OD up to 10 ft OD
    • Custom rolled rails for diameters from 10 ft OD up to 32 ft OD
    • Semi-flexible rails can be bent to a minimum radius of 16ft without permanent deformation
  • Gear-driven cross slide for precise torch adjustment
  • Application-specific accessory kits for oxy-fuel, plasma, MIG/MAG and SAW processes
SKU: SM-WC-RR-LT Category:

Description

  • Compact, lightweight design
  • Closed-loop encoder insures accurate speed control
  • Rack and pinion drive
  • Digital LED display for pre-setting travel speed

Technical Specifications

Rail Runner LT Specifications
Voltage115 - 230V 50 - 60 Hz
Power66 Watts
Rail options for round tube & pipeRing rails8" OD to 10' OD (200 mm to 3m OD)
Custom rolled rail10' OD up to 32' OD (3m to 10m OD)
Semi-flexible railMinimum Curvature Radius of 16' (5m)
Torch typesOxy-fuel, plasma, MIG/MAG, SAW
Torch diameterOxy-fuelup to 1-3/8" (35 mm)
Plasma, SAWup to 1-3/8" (35 mm)
MIG/MAG5/8" - 7/8" (16 - 22 mm)
Horizontal pulling force67.5 lbs
Vertical pulling force45 lbs
Horizontal speed range4 - 80 in/min (10 - 200 mm/min)
Vertical speed range4 - 80 in/min (10 - 200 mm/min)
Wight22 Lbs (10 Kg)
Part numberSM-WC-RR-LT

Additional information

Weight 22 lbs
Dimensions 18 × 14 × 16 in

Accessories

Ring Rail AccessoriesDescriptionPart Number
Ring trackDiameter custom configured within the range from
8" OD up to 10 ft OD (22 mm to 3,000 mm)
Contact for details
Support with boltsSM-WSP-0523-14-02-00-0
Support with magnetsSM-WSP-0523-14-12-00-0
Support with plastic feetSM-WSP-0523-14-11-00-0
Rigid Rail AccessoriesDescriptionPart Number
Rigid railLength 6.5 ft (2 m)SM-PRW-0482-47-00-00-0
Bracket for support units SM-DYS-0482-21-00-00-0
Magnetic unitSM-ZSP-0475-44-00-00-0
Heat-resistant magnetic unitSM-ZSP-0475-44-00-00-1
Magnetic pivoting unitSM-ZSP-0475-85-00-00-0
Magnetic spacing-adjustable unitSM-ZSP-0523-19-00-00-0
Narrow magnetic unit with hexagonSM-PDS-0585-10-00-02-0
Vacuum modular unitSM-MST-0541-10-02-00-0
Semi-Flexible Rail AccessoriesDescriptionPart Number
Semi-flexible trackLength 6.5 ft (2 m)
Minimum 16 ft (5 m) curvature radius required
Can be permanently custom rolled with radius range from 5 ft to 16 ft
SM-PRW-0482-15-05-00-0
Bracket for magnetic unitSM-DYS-0482-19-00-00-0
Bracket for narrow magnetic unitSM-DYS-0582-10-00-00-0
Bracket for magnetic unitSM-DYS-0482-19-00-00-0
Bracket for vacuum modular unitSM-DYS-0541-11-01-00-0
Magnetic unitSM-ZSP-0475-44-00-00-0
Heat-resistant

Application Use Cases

The S14-M suits mechanical fabrication, transportation, and construction work where angled cuts matter as much as a clean edge. It handles pipe, plate, channel, conduit, angle iron, metal studs, rebar, and tubing, making it useful for structural steel fabrication, custom metal frames, and repeatable angle cuts on production runs. Its 1750W motor and portable 72 lb frame support both jobsite work and continuous shop use.

Frequently Asked Questions

The S14-M offers a wider +/-46° mitering range compared to the S14's 45°, plus a heavier cast-aluminum base for added stability. Both share the same 1750W motor, 14" blade, and pipe capacity, with the S14-M priced for its extra versatility.

The S14-M comes in both 120V/60Hz (SM-S-14-M) and 230V/50Hz (SM-S-14-M-230) versions, so it runs on standard shop power or 230V circuits depending on your facility's setup.

A newly designed 14" laser-cut TCT blade for mild steel is included. The 1" arbor bore accepts other compatible 14" blades, so operators can swap in one suited to aluminum, stainless, or thinner materials.

The S14-M miters up to +/-46°, letting operators dial in custom angles for fabrication layouts. The precision miter table locks at the set angle, delivering repeatable, accurate cuts across a production run.

At 72 lbs, the S14-M is portable enough for jobsite use while still built for shop duty. Steelmax positions it for both field and shop environments, making it a flexible pick either way.


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