Battery powered, rail mounted tractors for mechanized MIG/MAG applications
- July 10, 2019
ESAB Welding & Cutting Products has introduced a range of welding tractors.
The range includes the Railtrac B42V rail-mounted tractor with new weaving unit, the Railtrac BV2000 rail-mounted tractor for rail hardfacing, the Miggytrac B501 compact battery-operated tractor and the Miggytrac B5001 compact programmable tractor.
“There are four great reasons to consider mechanized welding for long, and even not-so-long joints and seams: productivity, consistency, flexibility and ergonomics,” says Edward Hansen, global director of product management, Flexible Automation, ESAB.
Welding tractors increase travel speeds/deposition rates by 100 per cent compared to manual welding. They move faster, don’t need to stop for repositioning and enable welding with higher parameters and/or larger diameter wires. By making continuous welds, tractors reduce rework associated with start/stop defects. In applications where customers expect uniform weld bead profile and penetration, mechanized tractors deliver consistency without the cost or complexity of automation.
The Railtrac B42V is a universal rail-mounted tractor for welding or cutting that operates in the flat, horizontal or vertical positions. It features the new W8000 remote weaving unit for making weave welds up to 80mm (0 - 3.14 in.) wide and for weld path tracking.
Operators can program weave patterns, travel speeds and control voltage and wire feed speed for five standard programs. Stepper motors for both the drive and weave functions ensure smooth operation and high precision. The Railtrac B42V works with any wire feeder, but connecting it to an ESAB wire feeder enables adjustment of weld parameters and arc start and stop. For added flexibility, the Railtrac can be powered with 42V from the power source or an 18-volt Makita rechargeable battery, which is hot-swappable for continuous operation.
The Railtrac BV2000, also a rail-mounted tractor, can be configured to create the optimal solution for mechanized rail hardfacing applications. Its controls include six standard programs.
The Miggytrac B501 is a compact battery-operated tractor. Other than clamping a torch in the holder, there is no physical connection between the tractor and the power source. Miggytrac B5001 also works with any wire feeder, but connecting it to an ESAB wire feeder enables adjustment of weld parameters and arc start and stop. A color TFT LCD display with an intuitive GUI enables operators to adjust multiple functions to improve weld quality and program weld patterns.
“The TFT display separates the B5001 from the competition,” says Hansen. “It provides a better user experience and adds more functionality. For example, users can program a faster intermittent travel speed between stitch welds [up to 170 cm/min or 66.3 in./min.] to reduce cycle time. To reduce seam defects at the end of a weld, users can adjust crater fill and back fill functions.”
All Miggytracs use stepper motor drives to provide smooth travel at low and high speeds while high-friction wheels guarantee stable movement, even on inclined surfaces up to 45°. They can be powered by an 18-volt Makita rechargeable battery, which is hot-swappable for continuous operation. The Miggytrac B5001 can also be powered with 42V from the power source.