SC40-3 - Smith SC40-3 Heavy-Duty Propane/Natural Gas Cutting Tip, Size 3

Smith SC40-3 Heavy-Duty Cutting Tip for Propane & Natural Gas

The Smith SC40-3 is a premium heavy-duty cutting tip designed specifically for industrial professionals utilizing alternate fuel gases such as propane, natural gas, or propylene. As a Size 3 tip in the SC40 series, it provides a robust cutting capacity of up to 2 inches (51 mm), making it an essential consumable for fabrication shops, scrap yards, and structural steel environments. Unlike standard acetylene tips, this unit features a two-piece construction with a medium preheat capability, which is critical for maintaining the higher ignition temperatures required by alternate fuels.

Engineered for compatibility, the SC40-3 fits seamlessly with Smith Equipment's SC and DG series hand torches, as well as specific machine cutting torches like the SC770 and SC772A. It is also compatible with cutting attachments such as the SC205 and SC209. The tip utilizes Smith's renowned "In-Tip" mixing technology. This safety-forward design mixes the oxygen and fuel gas inside the tip rather than in the torch head, significantly reducing the risk of flashback and protecting the operator and equipment from sustained backfire damage.

Maintenance and longevity are key features of the SC40-3. The tip boasts a concave end that recesses the orifice, protecting the seating surface from nicks and damage during rough handling. Additionally, the fully swaged smooth bore reduces turbulence in the gas flow, allowing for faster preheat times, cleaner cuts, and minimal slag accumulation. This design not only improves cut quality but also extends the service life of the tip, reducing downtime for cleaning or replacement. Whether you are performing manual hand cutting or automated machine cuts, the Smith SC40-3 delivers consistent, high-performance results.