The Harris 6290 series is one of the most widely used lines of oxy-fuel cutting nozzles (tips) for industrial metal cutting and fabrication. Designed for hand torches and machine torches, the 6290 designation refers to the tip's seating geometry, thread size, and compatibility with Harris torch models.
Key Series Variants & Gas Compatibility
The 6290 line is categorized into distinct model suffixes based on the fuel gas type and cutting application:
- 6290 / 6290-AC (Oxy-Acetylene): Solid one-piece copper tips designed for acetylene hand cutting. They feature small preheat ports suited for high flame velocity.
- 6290-NX (Oxy-Propane / Natural Gas): Two-piece tips with a brass inner core and chrome-plated copper outer shell. Designed for medium preheating on clean steel plates.
- 6290-NFF (Alternative Fuel / Heavy Preheat): Two-piece tips formulated for propane or natural gas. Ideal for cutting rusty, painted, or heavily scaled steel plate.
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