ST602 - Smith ST602 Heavy Duty Acetylene Rosebud Heating Tip

Technical Overview of the Miller Smith ST602 Heating Tip

The Miller Smith ST602 is a high-performance, heavy-duty multi-flame heating tip designed specifically for oxy-acetylene applications requiring substantial thermal transfer. Engineered to deliver an average heat output of 40,125 BTU per hour, this component is an essential tool for industrial environments focused on heat treating, metal forming, and heavy fabrication. The tip features a six-flame configuration utilizing drill size 64 orifices, which creates a concentrated yet broad heat zone ideal for rapid temperature elevation in localized areas. With an overall length of 16 inches, the ST602 provides necessary standoff distance, enhancing operator safety and comfort during prolonged heating cycles.

Compatibility is a key feature of the ST Series. The ST602 is precision-machined to fit Smith Equipment's heavy-duty torch handles, specifically the WH200, SW1A, and SW1B models. This integration ensures a leak-proof seal and optimal gas flow characteristics. Users must note that due to the high volume of gas consumption required to sustain the 40,000+ BTU output, proper gas supply management is critical. The withdrawal rate for acetylene must not exceed 1/7th of the cylinder capacity. For standard 350 cubic foot cylinders, the withdrawal rate is approximately 50 SCFH; if the application requires continuous high-output heating, manifolding multiple cylinders is mandatory to prevent acetone withdrawal and ensure safe, efficient operation.

Safety protocols for the ST602 also dictate the use of high-flow flashback arrestors. Standard arrestors may create flow restrictions that starve the tip, leading to potential backfires or unstable flames. It may be necessary to adjust outlet pressures to compensate for these restrictions. The ST602 is not merely a consumable; it is a precision instrument for thermal manipulation, capable of significantly reducing labor time in applications such as bending, straightening, shrinking, and pre-heating for welding. By providing a quick, concentrated heat source, it maximizes operational efficiency while maintaining the rigorous safety standards expected of Miller Smith equipment.