CS6290NH4 - Victor Cutskill 6290NH-4 Harris Style Propane Cutting Tip Size 4

Technical Overview of the Victor Cutskill CS6290NH4

The Victor Cutskill CS6290NH4 is a precision-engineered replacement cutting tip designed to interface seamlessly with Harris-style oxy-fuel cutting equipment. This specific model belongs to the 6290NH series, which denotes a two-piece tip architecture optimized for alternative fuel gases such as Propane and Natural Gas. Unlike single-piece acetylene tips, the two-piece design features a splined brass inner member and a heavy-wall copper outer shell. This configuration allows for the recessing of the preheat flames, protecting the tip face from the intense heat reflected during the cutting of heavy plate and ensuring flame stability even when the torch is moved rapidly.

Rated as a Size 4 tip, the CS6290NH4 is calibrated for heavy-duty industrial applications. It provides a cutting capacity range of approximately 4 inches to 6 inches (100 mm to 150 mm) of mild steel. The tip geometry includes specifically sized preheat orifices that accommodate the higher volume requirements of alternative fuels to achieve necessary preheat temperatures. The cutting oxygen bore is machined to strict tolerances to maintain a laminar flow, ensuring clean, straight cuts with minimal slag accumulation. This tip is fully compatible with Harris Model 62, 42, 72, 73, and 85 torches, as well as compatible aftermarket attachments that utilize the 6290 seating style.

Maintenance and durability are key aspects of the Victor Cutskill line. The copper outer shell resists spatter adhesion and heat deformation, while the brass inner core ensures a gas-tight seal against the torch head. Users should ensure their equipment is set to the appropriate pressure settings for a Size 4 tip to maximize performance and safety. This component serves as a direct functional equivalent to the Harris 6290-4NH, offering professional-grade performance for fabrication, demolition, and structural steel work.