998740 - Oxweld 1566HS Size 10 High-Speed Acetylene Machine Cutting Nozzle (4-6 Inch Capacity)

High-Velocity Precision for Heavy Fabrication

The ESAB Oxweld 1566HS Size 10 Cutting Tip (SKU: 998740) represents the pinnacle of acetylene machine cutting technology. Engineered for industrial environments where throughput and edge quality are paramount, the 1566HS series distinguishes itself with a specialized divergent bore design. Unlike standard straight-bore tips that limit oxygen velocity, the divergent throat expands the cutting oxygen stream, accelerating it to supersonic speeds. This fluid dynamic advantage allows the operator to increase machine travel speeds significantly—often by 30% or more—without compromising the integrity of the cut.

Designed for heavy-duty applications, the Size 10 orifice is calibrated for severing mild steel plates ranging from 4 inches to 6 inches in thickness. The nozzle features a robust one-piece construction with a heavy chrome plating. This plating serves a dual purpose: it provides a hardened surface that resists the adhesion of molten spatter, and it acts as a thermal reflector, repelling the intense radiant heat generated during heavy plate cutting. This results in a cooler-running tip with a substantially extended service life compared to bare copper alternatives.

The internal geometry includes precision-milled preheat splines that ensure a uniform and stable flame ring, essential for maintaining the ignition temperature on thick sections. By optimizing the oxygen jet shape, the 1566HS minimizes kerf width and slag adhesion, delivering a 'finished' edge that often requires little to no secondary machining or grinding. This nozzle is fully compatible with standard Oxweld machine torches, making it a drop-in upgrade for fabrication shops looking to boost efficiency.