639606 - Oxweld 1566HS Size 4 Machine Cutting Nozzle for Propane/Natural Gas

High-Performance Machine Cutting with Oxweld 1566HS Series

The ESAB Oxweld Internal 1566 Series Size 4 Two-Piece Alternate Fuels Nozzle represents the pinnacle of machine cutting efficiency for industrial fabrication environments. Engineered specifically for use with alternate fuels such as Natural Gas and Propane, this nozzle is designed to maximize productivity without compromising cut quality. The 1566HS (High Speed) series is distinguished by its ability to maintain stable, high-velocity oxygen streams that facilitate rapid oxidation and material removal. With a cutting capacity of 4 inches, this specific Size 4 tip is an essential component for heavy fabrication shops processing medium-to-thick steel plates.

One of the defining characteristics of the 1566HS series is its "High Preheat" capability. In automated machine cutting, start times are critical to overall cycle time. The aggressive preheat flame pattern of this nozzle ensures that the steel reaches ignition temperature quickly, even when the surface is covered in mill scale, rust, or primer. This feature significantly reduces dwell time at the start of a cut, allowing the machine to transition to forward motion sooner. Once the cut is established, the nozzle supports travel speeds ranging from 7 to 13 inches per minute, depending on the specific alloy and plate conditions.

The two-piece construction of the nozzle includes a brass outer shell and a copper internal member. This design is standard for alternate fuel tips, as it allows the fuel gas to be recessed and mixed effectively within the nozzle for a stable flame front. The separation of the two pieces also simplifies maintenance; if the splines become clogged with carbon or slag, the internal member can be removed for thorough cleaning. Operating at a cutting oxygen pressure of 90 PSIG and a fuel pressure between 5 and 10 PSIG, this nozzle balances gas consumption with performance, consuming approximately 315-325 CFH of oxygen and 15-20 CFH of fuel gas during operation.

Reliability is paramount in machine cutting, where downtime translates directly to lost revenue. The ESAB Oxweld 1566HS Size 4 is manufactured in Mexico to stringent quality standards, ensuring concentricity and consistent flow rates. This consistency is vital for multi-torch operations where every nozzle must perform identically to prevent cut defects or lost parts. Whether used for straight-line cutting, shape cutting, or beveling, this nozzle provides the thermal intensity and aerodynamic precision required for high-quality cuts on carbon steel.