programmable welding carriage
Arc Runner - Steelmax - ToolsArc Runner - Steelmax - Tools

Arc Runner Portable Programmable Welding Carriage

The Steelmax® Arc Runner is a portable, programmable welding carriage designed to produce consistent, high-quality welds. The powerful magnetic base and closed loop electronic speed control provide speed stabilization in all positions. The unit enables weld bead geometry that is exact to the required specifications, substantially reducing costly over welding and decreasing filler metal usage.

The Arc Runner can be programmed in continuous or stitch welding modes. Two easy-to-use function buttons enable programming of weld length, distance between welds, reverse fill, crater fill time and other required patterns and parameters. The Arc Runner travels at full speed between stitches, which saves valuable welding time.

An optional pendulum torch oscillator is available for the Arc Runner to produce weave welds. The oscillator allows for precise control of weave width, weave speed and left/right side wall dwell.

Arc Runner’s micro processor allows for development, storage and reproduction of up to 40 different welding programs for various joint configurations and multi-pass, multi-layer welds. Once an optimum weld procedure is developed, stored and programmed, Arc Runner will repeat it over and over again.


  • Compact, lightweight design with durable cast aluminum housing
  • Permanent magnet clamping system with on/off lever ensures positive magnetic traction
  • Maintenance free, 4-wheel planetary gear drive system
  • Standard torch holder for welding torches with diameters of  5/8˝ – 7/8˝ (16-22 mm); optional large holder for diameters up to 1-3/8˝ (35 mm)
  • Precise cross-slide torch adjustment
  • Multifunctional LED display and 2 function buttons for welding pattern programming
  • Closed-loop speed control system stabilizes travel speed to reduce weld defects and costly repair work
  • Consistent heat input reduces distortion
  • Automatic ARC ON/OFF system initiates welding and travel, simultaneously
  • Self-guiding roller arms eliminate the need for track
  • Improves work environment – reduces fatigue and repetitive stress – removes operator from heat and fumes
  • Capable of carrying and controlling 2 torches (without oscillation)
  • Up to 40 complete programs may be stored in non-volatile memory
Arc Runner Technical Specifications
Part NumberSM-WC-AR or SM-WC-AR-230
Power Supply115-230 VAC / 50-60 Hz

(separate units due to plug interface)
Welding PositionVertical/Horizontal
Chassis to material clearance3/16″ (5 mm) minimum
Drive SystemFriction drive with worm gear reduction

Four wheel drive, heat resistant silicone wheels
Tracking method2 roller guides in various configurations
Towing ForceVertical: 33.7 ft. lbs (150 Nm)

Horizontal: 49.5 ft. lbs (220 Nm)
Torch adjustment:


1-3/8″ (35 mm)

1-3/8″ (35 mm)
Guide roller adjustment3″ (75 mm)
Control panel:

Travel direction switchFunction button F1Function button F2Arc ignition switchSpeed Knob
Program start, direction left / stop / program start, direction rightContinuous welding, dash, crater fill, backweldValue change “+” or “-”TEST / 0 / IHorizontal speed: 0 – 47-1/4″/min (0-1200 mm/min)

Vertical speed: 0 – 43-3/8″/min (0-1100 mm/min)
Automatic stopLimit switches at both ends
Noise Level< 70 dB
Dimensions15″ x 14-5/8″ x 15-3/8″ (382 mm x 372 mm x 390 mm)
Weight29.8 lbs (13.5 kg)


Oscillator Technical Specifications
Oscillation typePendulum
Amplitude R-150 mm0.08-1.2” (2-30 mm)
Frequency12-115 cycles/min
Dwells0-3 s.
Weight5.5 lbs (2.5 kg)
Product CodeSM-WC-AR-OSC
Dual Torch Mount
Enables mounting of second torch for dual-sided fillet welding
Product Code: SM-PDT-0466-40-00-00-0
Torch Extension Arm
Enables extended reach for torch placement
Product Code: SM-PRD-0466-43-00-00-0
Edge Following Guide Arms
Enables guiding off an outside edge
Product Code: SM-PRW-0476-21-00-00-0
Adjustable Guide Arms
Enables guiding on lap joints and templates
Product Code: SM-PRW-0476-22-00-00-0
Flexible Guide Rail
72” Long for LR and AR
Product Code: SM-PRW-0466-50-01-01-0
Flexible Guide Rail Alignment Tool
Quickly aligns the flexible guide rail to the appropriate distance from the joint
Product Code: SM-UST-0466-53-00-00-0
Rail Guide Arms for Arc Runner (set of 2)
Product Code: SM-PRW-0476-50-01-00-1
Magnet for Flex Rail
(LR and AR) - 10 required
Product Code: SM-BLO-0466-50-01-10-0
Quick Connect Torch Holder
Quick connect/release torch holder
Product Code: SM-ZRZ-0466-04-01-00-0

General RFI