Railtrac B42V


Railtrac B42V

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Railtrac B42V is a welding tractor system that can be configured to create the optimal solution for your mechanized welding application. To minimize problems associated with harsh environments, most mechanical parts are constructed in aluminum or stainless steel. The system is designed for horizontal and vertical up and down when applicable.

Railtrac B42V can be easily connected to most ESAB wire feeders with no major modification. Remote adapters have to be mounted in feeders Aristo© Feed 3004/4804, Origo™ Feed 304/484 and Warrior™ Feed 304. Railtrac B42V features different torch holders for various applications. 

With the optional Orbital kit you can convert the B42V into a pipe welder that can be used for orbital welding of pipes from 20 in. and up, in horizontal and vertical joints, with or without weaving.

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  • 42V AC powered from power source or battery driven with standard Makita 18V system
  • Possible to program a specific welding length with auto return to start position
  • Stepper motors both for drive and weaving function with extremely high precision. Wide speed range available in a single unit
  • Remote is programmable for weave patterns and travel speed and is capable of controlling voltage and wire feed speed in up to 5 standard programs
  • Unit can be programmed and run directly from the controls on the Railtrac machine if the remote control is lost, damaged or not preferred


  • Pipeline
  • Ship and Offshore Yards
  • Ship/Barge Building
  • Tank and Vessel Fabrication
  • Structural Steel Fabrication
  • Windtower
  • Heavy Fabrication
  • Repair and Maintenance

Specifications and Dimensions

Max Load 10 kg (22 lb)
Conditional Qualification w/Battery (optional)
Max Load 5 kg (11 lb)

Capacities and Temperatures

Temperature, Machine and Magnets 70 degC (158 degF)
Temperature, Vacuum Attachment 90 degC (194 degF)

Power Specifications

Standards CE; DIN40050

Welding Speeds

Conditional Qualification w/battery
Travel Speed 30 mm/sec (72 in./min) 25 mm/sec (60 in./min)

Measurements and Dimensions

Dimensions (LxWxH) 8.3 x 14.2 x 10.6 in.
Dimensions (LxWxH) 210 x 360 x 270 mm
Slide Height Adjustment ± 1.8 in.
Slide Height Adjustment ± 45 mm
Weight 17.6 lb
Weight 8 kg

Power Requirements

Battery Voltage, VDC 18 V
Connection Voltage 24 - 70 VDC 20 - 50 VAC
Max Power Output 50 W
Enclosure IP44

Interested in this product? Contact us.

Contact us online

ESAB Group (UK) Ltd

Warlies Park House
Horseshoe Hill
Phone: +44 (0) 1992 768515


Robert-Bosch-Str. 20
61184 Karben
Phone: +49 6039 40 0

Colfax Corporation

420 National Business Parkway
5th Floor
Annapolis Junction, MD 20701

Part Numbers and Accessories

Part Numbers : Railtrac B42V
Railtrac B42V Package 0398146016 FIND A DISTRIBUTOR

Makita® Battery Changer DC18RC (195585-0) can be bought locally in hardware store.

Accessories : Railtrac B42V
Battery 18V, 5Ah Li-ion, Makita®* 0457468074 FIND A DISTRIBUTOR
Battery charger 230 V AC Makita®* 0457468072 FIND A DISTRIBUTOR
Connection cable universal (only w. 12-pin) 0457360886 FIND A DISTRIBUTOR
Control Cable 5 m (16.4 ft.) 0457360880 FIND A DISTRIBUTOR
Flexible Alu Rail, 5 m 0398146119 FIND A DISTRIBUTOR
Flexible alu-rail, 2.5 m (8 ft.) 0398146115 FIND A DISTRIBUTOR
Flexible alu-rail, 2.5 m (8 ft.), 8 magnets 0398146112 FIND A DISTRIBUTOR
Flexible alu-rail, 2.5 m (8 ft.), vacuum attachments 0398146113 FIND A DISTRIBUTOR
Floating Head for Torch 0398145211 FIND A DISTRIBUTOR
Magnetic attachment 90°, at least 8/2.5 m (8/8 ft.) 0398146100 FIND A DISTRIBUTOR
Quick-extension bracket for flexible rail 0398146120 FIND A DISTRIBUTOR
Remote Adapter kit 0465451881 FIND A DISTRIBUTOR
Screw attachment for stiffened rail 0398146114 FIND A DISTRIBUTOR
Stiffener Bar, 2.5 m (8 ft.) 0398146116 FIND A DISTRIBUTOR
Tilt Bracket Railtrac B42V 0398145202 FIND A DISTRIBUTOR
Torch holder for PSF 0398145101 FIND A DISTRIBUTOR
Torch Holder Universal Ø15-30mm 0398145106 FIND A DISTRIBUTOR
Transformer 115VAC 0457467882 FIND A DISTRIBUTOR
Transformer kit 0457467880 FIND A DISTRIBUTOR
Turning Bracket Railtrac B42V 0398145203 FIND A DISTRIBUTOR
Vacuum attachment 200°, at least 4/2.5 m (4/8 ft.) 0398146105 FIND A DISTRIBUTOR
Vacuum attachment 90°, at least 4/2.5 m (4/8 ft.) 0398146104 FIND A DISTRIBUTOR

Makita® Battery Changer DC18RC (195585-0) can be bought locally in hardware store.

*Makita<sup>®</sup> Battery 5Ah Li-ion BL1850 (196673-6) can be bought locally in hardware store.

Not for use with Robust Feed