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Welders for Sale (875)

United Rentals offers a wide selection of top-notch welders for sale from the best manufacturers. Whether you're a professional welder or a DIY enthusiast, we have the tools you need to tackle any project with confidence.

For our full list of welders, view the items below. For more information about welders, visit our resource section.



FAQs About Welders

United Rentals has the best selection of welders for sale in the business. We carry welders from trusted manufacturers like Lincoln Electric, Miller and Multiquip. You can find everything from small portable welders for light-duty work to large welders for heavy-duty fabrication. Our selection includes AC/DC and MIG welding machines, rack welders and other portable welders. Whether you need something small or large, United Rentals has the welder you need. Our inventory is always changing, so check back often to see what’s listed near you. Unsure of what size welder you need? Check out our Project Uptime article, What Kind of Welder Do I Need? Request information on any of the welders for sale above.

Learn more about our welders in our FAQ section below.

What tools do welders use?

Welders use several different tools depending on their welding process. MIG welders typically use a wire brush to clean the weld area, a chipping hammer to remove slag and a grinder to adjust the weld bead. TIG welders may use a wire brush but also a torch to heat the weld area.

What gas do welders use?

MIG welders use an inert gas like argon to shield the weld from the atmosphere. This produces a weld with a smooth, shiny appearance. TIG welders use a non-consumable tungsten electrode to weld the weld area. This creates a weld with a very clean appearance and is often used for welding aluminum. GMAW welders use a consumable electrode to fuse the weld area. This produces a less clean weld than TIG welding, but it is faster and easier to learn.

What are spot welders used for?

Spot welders are used to weld two pieces of metal together. They are typically used in sheet metal fabrication, where they are used to fuse panels and other pieces of metal. Spot welders use a few different welding processes, including resistance welding and arc welding.