SC50-5 - Smith SC50-5 Heavy Duty Propane Cutting Tip Size 5

Technical Overview of the Smith SC50-5 Cutting Tip

The Smith SC50-5 is a premium heavy-duty cutting tip engineered specifically for use with alternate fuel gases, including Propane and Natural Gas. As part of the renowned SC50 series, this Size 5 tip is designed to deliver high-performance cutting capabilities for industrial applications requiring deep material penetration and substantial heat input. The tip features a two-piece construction, consisting of a brass outer shell and a copper internal splined insert, which is the standard configuration for optimizing the flame characteristics of slower-burning fuel gases like propane.

With a cutting capacity of approximately 6 inches (152mm), the SC50-5 is a workhorse for fabrication shops, scrap yards, and heavy manufacturing environments. The "Heavy Preheat" designation indicates that this tip is capable of generating a robust preheat flame, essential for bringing thick steel to ignition temperature quickly, even when using natural gas which typically has a lower heat transfer rate than acetylene. This ensures efficient starts and maintains cut speeds on heavy plates.

Safety and durability are core components of the Smith design philosophy. The SC50-5 utilizes Smith's signature "In-Tip" mixing technology. Unlike universal pressure torches that mix gases in the handle or head, Smith tips mix the oxygen and fuel gas within the tip itself. This significantly reduces the volume of mixed gas in the system, thereby lowering the risk of flashback and enhancing operator safety. Furthermore, the tip face features a concave design. This recessed geometry helps protect the critical orifice edges from damage if the tip accidentally touches the workpiece and aids in stabilizing the preheat flame against backfire.

This tip is highly versatile regarding equipment compatibility. It is designed to fit Smith DG200 and SC200 series cutting attachments, as well as all Smith SC and DG series hand torches. It is also compatible with Smith's 3-hose machine cutting torches and 2-hose machine torches (up to size SC50-6). The fully swaged smooth bore ensures laminar gas flow, resulting in clean, precise cuts with minimal slag accumulation, reducing post-cut grinding and cleanup time.