CS1381 - Victor Cutskill CS1381 Airco Style Acetylene Cutting Tip Size 1

Technical Specifications: Airco Style 138-1

The Victor Cutskill CS1381 is a precision-engineered one-piece cutting tip designed for use with Acetylene fuel gas. It serves as a direct functional replacement for the industry-standard Airco 138-1 tip. This nozzle is compatible with all standard Airco-style cutting torches and cutting attachments that accept the 138 series seating configuration. The tip geometry features a flat seat with a specific taper designed to seal effectively against the torch head, ensuring separation of the preheat gases and the cutting oxygen stream until they exit the tip.

Operational Parameters:
The Size 1 classification of the CS1381 indicates its orifice sizing, which is calibrated for cutting mild steel thicknesses in the range of approximately 3/4 inch (19mm). Operators should adjust their oxygen and acetylene pressure regulators according to standard charts for Airco 138 series tips to achieve a neutral preheat flame and an optimal cutting stream. The one-piece copper construction is typical for acetylene tips, allowing the tip to withstand the high thermal soak of the process while maintaining the integrity of the preheat holes.

Design and Maintenance:
This tip features a central cutting oxygen bore surrounded by a ring of preheat orifices. The internal swaging of the tip is smooth to minimize turbulence in the gas flow, which is critical for maintaining a long, straight cutting stream. Regular maintenance should be performed using standard tip cleaners designed for the specific drill sizes of the 138-1 to remove carbon deposits and slag spatter. Avoid using drills that are too large, as enlarging the orifices will degrade performance and flame stability. The copper alloy shell provides excellent thermal conductivity, helping to keep the tip cool during extended cutting operations and reducing the risk of flashbacks associated with overheated tips.

Compatibility Note:
This tip is strictly for use with Acetylene. It is not designed for alternate fuels such as Propane, Propylene, or Natural Gas, which require two-piece tips with recessed cutting faces (such as the Airco 144 series). Ensure your gas supply matches the tip specification before ignition.