0558005085 - ESAB Oxweld 1566HS Size 1 MAPP/FG-2 Cutting Tip

Technical Overview of the ESAB 1566HS-1 Cutting Nozzle

The ESAB 1566HS-1 (SKU: 0558005085) is a specialized cutting nozzle engineered for industrial oxy-fuel cutting applications utilizing MAPP or FG-2 fuel gases. Part of the renowned Oxweld 1566 series, this nozzle features a two-piece construction, distinguishing it from standard single-piece acetylene tips. The two-piece design consists of a heavy-duty brass inner member with precision-milled splines and a copper outer shell. This configuration is essential for alternate fuel gases, as it creates a recess at the tip end where combustion can anchor effectively, providing a stable and intense preheat flame despite the lower flame propagation rates of MAPP and FG-2 compared to acetylene.

The "HS" designation stands for High Speed. This nozzle is designed with internal geometries that optimize the oxygen stream, allowing for faster travel speeds without sacrificing cut quality. The Size 1 classification indicates its suitability for cutting mild steel with a thickness of approximately 3/4 inch (19 mm). Operators using the 1566HS-1 can expect a clean kerf and minimal top-edge rounding when parameters are set correctly. The nozzle is chrome-plated, a standard feature for high-quality ESAB consumables, which significantly reduces the adherence of molten spatter during piercing and cutting operations, thereby extending the service life of the tip and reducing maintenance downtime.

Compatibility is key with the 1566 series; it is designed to seat perfectly in Oxweld torch heads, including models C-32, C-66, C-77, and C-97. The seating surfaces are machined to tight tolerances to ensure a leak-proof seal and proper gas separation within the torch head. Industrial MRO professionals should ensure that the torch injector or mixer is compatible with alternate fuels before installation, although the nozzle itself is the primary determinant of flame characteristics at the workpiece. This nozzle represents a robust solution for fabrication shops looking to leverage the availability and heat characteristics of MAPP and FG-2 gases.