SC40-4 - Smith SC40 Series Size 4 Propane Cutting Tip

Smith SC40-4 Heavy Duty Propane & Natural Gas Cutting Tip

The Smith SC40-4 is a premium-grade, heavy-duty cutting tip engineered specifically for industrial cutting applications utilizing alternative fuel gases. Designed to operate efficiently with propane, natural gas, and propane-based mixtures, this tip is an essential component for fabricators and metalworkers seeking reliable performance without the use of acetylene. As a Size 4 tip in the SC40 series, it boasts a substantial cutting capacity, capable of severing steel plate up to 3 inches (76mm) thick with precision and speed.

One of the defining technical features of the SC40-4 is its two-piece construction. Unlike single-piece acetylene tips, this design separates the inner member from the outer shell. This configuration is critical for alternative fuels, which require a different mixing and preheat dynamic compared to acetylene. The "medium preheat" specification ensures that the tip delivers sufficient heat to the base metal to maintain the cutting reaction, even when using gases that burn at slightly lower temperatures than acetylene. Furthermore, the two-piece assembly simplifies maintenance; the outer shell can be removed to clean the splines of the inner member, ensuring consistent gas flow and flame quality over the lifespan of the consumable.

This tip is manufactured to Smith Equipment's rigorous standards, ensuring a perfect fit and seal with compatible equipment. It is designed for use with all Smith SC and DG Series hand torches, as well as compatible machine cutting torches and cutting assemblies. The precision-machined seating surfaces prevent dangerous gas leaks and flashbacks, prioritizing operator safety in heavy industrial environments. Whether utilized in structural steel fabrication, scrap yards, or general maintenance and repair operations, the SC40-4 delivers consistent, high-quality cuts with minimal slag accumulation.

Key Technical Specifications

• Series: SC40 Heavy Duty
• Fuel Gas Compatibility: Propane, Natural Gas, Propylene
• Tip Size: 4
• Cutting Thickness: 3 inches (76mm)
• Design: 2-Piece, Medium Preheat