ML338 - 5-Inch Rigid Blue Replacement Caster for Welding Carts

Keep Your Gear Rolling Smoothly

There is nothing more frustrating in the shop than a welding cart with a bad wheel. You try to pull your welder over to the next joint, and the cart gets stuck on a zip tie or veers off into a workbench. Stop fighting your equipment and fix it with the ML338 5-Inch Rigid Blue Caster. This isn't just a cheap plastic wheel; it's a solid replacement part built to handle the grit and grime of a real welding shop. If your cart is dragging, wobbling, or just plain stuck, this is the upgrade you need to get back to work.

Built for the Shop Floor

Welding shops are tough on wheels. Between metal shavings, concrete dust, and the heavy weight of gas bottles and transformers, standard casters just don't last. This 5-inch caster features a tough blue tread that stands up to abuse. It’s a rigid caster, meaning it doesn't swivel. This is perfect for the back wheels of your cart, giving you the stability you need to push your gear in a straight line without it wandering all over the place. The 5-inch size is a sweet spot—big enough to roll over extension cords and cracks in the floor, but low-profile enough to keep your center of gravity safe.

Heavy Duty Load Support

We know your rig is heavy. A fully loaded MIG welder plus a T cylinder of Argon/CO2 adds up to a lot of weight. The ML338 is designed to carry that load without buckling. The solid construction means you don't have to worry about airing up tires or dealing with flats. It’s ready to roll whenever you are. The rigid frame is made of steel, ensuring that when you push your cart, the energy goes into moving the welder, not bending the wheel bracket.

Easy DIY Replacement

Don't buy a whole new cart just because a wheel blew out. Swapping out a caster is one of the easiest repairs you can do. This unit bolts on to most standard cart patterns. Check your old wheel, make sure you need a rigid (fixed) one, and grab this replacement. It’s a small investment that saves you a ton of hassle every time you move your machine. Keep your focus on the arc, not on wrestling with a broken cart.