Smith ST635 Heavy Duty Propane Heating Assembly

Maximize Heating Power with the Smith ST635

When your job demands serious heat, the Smith ST635 Heavy Duty Propane Heating Tip delivers the thermal power you need to conquer the thickest materials. Designed for professional welders and fabricators who need to move beyond the limitations of standard heating tips, the ST635 is a beast of a "rosebud" that leverages the economy of propane and natural gas without sacrificing performance. With a staggering output of over 614,000 BTUs, this tip turns your heavy-duty torch handle into a furnace capable of bringing heavy plate, castings, and structural beams up to temperature in record time.

One of the biggest advantages of the ST635 is its ability to utilize low-cost fuel gases. While acetylene is excellent for welding, it can be prohibitively expensive for large-scale heating operations. By switching to propane or natural gas with the ST635, shops can realize significant cost savings while achieving a cleaner burn and a more diffuse heat pattern that is ideal for soaking heat into large masses of metal. Whether you are preheating for a critical weld, bending pipe, or straightening warped steel, this tip provides the consistent, high-volume heat necessary to get the job done efficiently.

Built for the Heavy Industrial Environment

Comfort and safety are paramount when working with high-output heating equipment. The ST635 features an extended 31-1/2 inch length, placing the flame well away from your hands and face. This design reduces operator fatigue caused by radiant heat exposure, allowing you to work longer and more precisely. The fluted tip design ensures the flame remains stable even when you are pushing the equipment to its limits.

To get the most out of this powerhouse, ensure your rig is up to the task. This tip is designed for the Smith WH200 and SW1B handles and requires 3/8-inch hose to feed its hunger for fuel. Don't starve your flame—pair this tip with the right high-flow regulators and flashback arrestors, and experience the difference that professional-grade heating equipment makes in your productivity. It is the ultimate solution for shipyards, rail yards, and heavy equipment repair facilities looking to optimize their heating processes.