ESAB Launches Three Water-Cooled MIG Guns  for High Amperage Welding Applications

September 30, 2020

Annapolis Junction, Md. – Tweco, ESAB brand, has launched its Tweco Fusion Pro 7W and 9W water-cooled MIG guns for high-amperage welding with solid and cored wires and the Tweco MXH 420W PP (push-pull) water-cooled gun for MIG aluminum and longer reach applications.

“These water-cooled guns represent a new series of Tweco high-performance guns that offer superior comfort, ergonomics and lower total cost of operation,” says John Esposito, Global Product Manager, ESAB Welding & Cutting Products. “Water-cooled guns weigh an average of 38% less than comparably-rated air-cooled guns. Coupled with advanced cooling performance the extends consumables life, they promote all-day operator comfort in high-heat applications like pulsed MIG welding and welding with large diameter cored, solid and aluminum wires. They are win-win for operators and your bottom line.”

The Fusion Pro 7W is rated at 450A @ 100% duty cycle with mixed gas, 500A @ 100% duty cycle with CO2. The 9W is rated at 500A @ 100% duty cycle with mixed gas, 550A @ 100% duty cycle with CO2. The 9W features a dual-circuit cooling system that brings cooling water all the way to the seat of the gas nozzle, as well as to the conductor tube. The guns are available with 10, 12 and 15 ft. cable lengths, and the back-end can be configured for Tweco-style, Euro-style and competitive wire feeder connections.

The Fusion Pro 7W and 9W feature an advanced ergonomic design with rubberized soft-grip areas to promote a sure grip while helping avoid hand fatigue. In addition, knuckle joints and spring supports at the gun/cable transitions point improve flexibility to reduce wrist strain. Both guns feature Tweco’s new M series threaded contact tips that are available in pure copper (Ecu) or a premium CuCrZr alloy that resists wear so operators can weld longer on a single tip.

“These guns stay cooler and feel more comfortable. Operator’s will experience a noticeable advantage between Tweco and competitive guns,” adds Esposito.

The MXH 420W PP, rated at 400A @ 100% duty cycle with mixed gas, delivers consistent wire feeding performances over long distances and for challenging situations with soft and smaller diameter wires at wire feed speeds up to 26.5 fps. This push-pull gun offers “plug-and-play” performance with any ESAB 3004 feeder system (Aristo®, Origo® or Warrior® Feed) by using the MXH adapter.

The MXH sports a comfortable pistol grip and well-balanced design. The operator can manipulate the gun with less fatigue, as well as adjust wire feed speed at the gun for even more control. The simple feed rolls are easily replaced, and the strong feeding mechanism provides positive performance with the 20- and 33-ft. cable length options. The MXH uses time-proven PSF wear parts that also include long-lasting contact tips made from a CuCrZr alloy.

Smart Investment

“While water-cooled guns require a higher initial expense, their enhanced cooling capabilities provides a better payback,” says Esposito. “To start, consumables last about twice as long compared to an air-cooled gun, and that also means half the amount of downtime related to consumable changes. Next, a cooler-running gun reduces or eliminates the ‘stick-slip’ phenomena that occurs when components overheat and seize the wire, which is evidenced by erratic feeding performance. A more stable arc also lowers spatter, and spatter doesn’t adhere as readily, so there is less need to clean the nozzle and less risk of shielding gas turbulence.”

At ESAB, we exist to shape the future of welding and cutting. We connect fabricators with the widest range of products under our industry-leading brand portfolio with the latest technologies to solve virtually any industry challenge — then we back it up with our knowledge, experience and passion to help them be more productive than ever before. To learn more, call 1-800-ESAB-123.

ESAB’s new water-cooled MIG guns — the Fusion Pro 7W, Fusion Pro 9W and MXH 420W PP — keep the operator more comfortable and promote longer consumables life in heat-heat applications.

ESAB’s new water-cooled MIG guns — the Fusion Pro 7W, Fusion Pro 9W and MXH 420W PP — keep the operator more comfortable and promote longer consumables life in heat-heat applications.