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Welding

Swift & safe

By Gretchen Salois

Above: Gullco manufactured a cable-free carriage that includes a battery capable of lasting an entire shift for standard welding applications (upwards of nine hours at 14 IMP welding speed).

Powered by a low-voltage battery, a completely wireless automation carriage gives welders greater flexibility

September 2019 - Automation is increasingly becoming a go-to strategy for fabricators looking to complete jobs where talent may not be readily available. However, when repeatable tasks are automated, there remains a specialized set of jobs relegated to time-tested humans who can handle the one-off, sometimes awkward positioning a robotic welder simply cannot reach. For those tasks, an actual person is required and the latest in wireless technology now allows welders to weld wire-free, powered by convenient batteries that can withstand the rigors of a nine-hour shift.

A welder isn’t always relegated to a static welding cell. Tight spaces and awkward angles are the norm for those fabricating ships, railcars or pipelines.

The latest battery powered carriage from Gullco is a result of years of feedback from multiple end users. “But the ones who have wanted it most are shipbuilders and railcar manufacturers,” says Nick Drake, marketing manager at Gullco International Ltd., Newmarket, Ontario. “Any time you can eliminate one of the cables—especially an electrical cable—from the equation, [that] is preferable.”

FFJ 0919 welding image1

Pre-flow and post-flow settings on the carriage are programmable. The Moggy can run on a V-groove track.

Benefits of cable-free tools aren’t limited to shipbuilders and railcar manufacturers. “These trackless welding or cutting automation carriages are used on a variety of other applications, including beam welding, bridge and heavy equipment manufacturing, such as cranes,” Drake says.

Gullco removed an electrical cable while building a carriage that includes a battery capable of lasting an entire shift for standard welding applications (upwards of nine hours at 14 IMP welding speed).

Enclosure

For 50 years, Gullco has offered welding power supplies. Its Moggy welding carriage is now adapted to include a battery powered option. “The new wireless battery [version] has all the same features and durability of our older carriage and is fully enclosed so it’s safe from the harsh environment that welding is known for,” Drake says.

The battery is constructed to prevent over charging and over discharging. It can run in extreme temperatures. “It charges to full [power] in just over an hour,” he adds. The dual gun holder assemblies make automated simultaneous welding efficient.

FFJ 0919 welding image2

A quick-release, insulated torch holder detaches and reattaches readily.

FFJ 0919 welding image3

Gullco’s Moggy carriage has tool-less set up, adjustment and operation and is energy efficient and safe, using a 24V DC motor. It is universally compatible to all welding power sources and wire feeders and can tack feedback for accurate weld distance and stitch weld spacing. The carriage also has a weld step-back function. Pre-flow and post-flow settings are programmable, and the Moggy can run on a V-groove track. It can be set up to weld at the front, center or back of the carriage and operates in forward or reverse.

It also uses copper guide wheels that are configured to follow the material’s vertical member or the plate edge to guide the carriage during use. A quick-release, insulated torch holder detaches and reattaches readily and accurately.

Dual torch welding allows for the simultaneous activation of two wire feed signals. Fine adjustment slides provide precise control over torch positioning and adjustments. Silicone drive wheels are removable and are capable of precise traction on a variety of surfaces at a temperature range spanning -65 degrees to 450 degrees Fahrenheit. The carriage has an easily visible LED screen that allows for adjustments during welding.

FFJ 0919 welding image4

Gullco’s Moggy carriage has tool-less setup, adjustment and operation and is energy efficient and safe, using a 24-volt DC motor.

Accessorizing

The wireless Moggy trackless welding or cutting automation carriages are used in such applications as beam welding, bridge construction and mobile equipment like cranes. It can be equipped with accessories including weld oscillator, cutting torch attachment and internal radius guide wheels.

“Anywhere that a continuous fillet, lap or butt weld is being produced, a carriage similar to this can be implemented to produce a high-quality weld while reducing costs by eliminating defects or over-welding and increasing arc on time,” Drake explains. FFJ

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