Smith ST602 Heavy Duty Acetylene Rosebud Heating Tip

Get the Job Done with the Smith ST602 Acetylene Heating Tip

When you are staring down a piece of bent structural steel or need to pre-heat a thick casting before laying a bead, you don't have time to wait around for a small torch to do the work. You need the Miller Smith ST602. This is a heavy-duty, multi-flame heating tip—often called a "rosebud" in the shop—that is built to dump serious heat exactly where you need it. Running on acetylene, this tip cranks out over 40,000 BTUs per hour. That means less time holding the torch and more time bending, forming, or welding. It’s designed with six individual flame ports that work together to create a powerful, soaking heat that penetrates deep into the metal.

The ST602 is 16 inches long, which is a huge plus when you are working on large assemblies. That extra length keeps your hands and your torch handle further away from the radiant heat of the workpiece, saving your gloves and keeping you comfortable. It fits right onto your standard Smith heavy-duty handles like the WH200, SW1A, or SW1B. If you are already running Smith gear in your rig or shop, this tip drops right in and gets to work. It is perfect for those tough jobs: straightening warped frames, bending heavy bar stock, shrinking stretched metal, or just getting a part hot enough to accept a braze.

A word of advice for the pros using this tip: it eats gas to make that heat. You need to make sure you have enough acetylene supply. If you are running small tanks, you might starve the tip, which is dangerous and bad for the equipment. Make sure you are following the "1/7th rule" for acetylene withdrawal. For a tip this size, you might need to manifold cylinders together if you are doing long heating runs. Also, use high-flow flashback arrestors to keep the gas moving freely. Treat it right, and the ST602 will be the most reliable tool in your kit for heavy thermal work.