CS6290NH5 - Victor CutSkill CS6290NH5 Harris Style Propane Cutting Tip, Size 5

Technical Overview: Victor CS6290NH5

The Victor CutSkill CS6290NH5 is a specialized oxy-fuel cutting tip manufactured to the specifications of the Harris 6290NH series. This tip is explicitly designed for use with alternative fuel gases, specifically Propane and Natural Gas. The 'NH' designation indicates a heavy-duty, high-speed design suitable for aggressive cutting applications. The tip features a two-piece assembly, a standard requirement for alternative fuels. The inner brass member contains splines for gas mixing, while the outer copper sleeve protects the flame and resists the adherence of slag and spatter. This recessed design anchors the flame, preventing it from blowing off the tip face even at the high flow rates necessary for cutting thick sections.

Operational Specifications

Rated as a Size 5, this cutting tip is engineered for the upper range of manual cutting capacities. It effectively processes steel plate with thicknesses between 6 inches (150mm) and 8 inches (200mm). To achieve optimal cuts at this thickness, operators should ensure their regulator and hose systems can supply the necessary volume of oxygen and fuel gas. The tip typically operates best with oxygen pressures in the range of 65-75 PSIG, depending on the specific torch length and hose diameter. The robust flow characteristics of the Size 5 orifice ensure that the cutting oxygen stream maintains its velocity and purity deep into the kerf, clearing molten slag efficiently from the bottom of the cut.

Precision and Efficiency

Victor CutSkill tips are manufactured with tight tolerances to ensure consistent gas flow and flame characteristics. The preheat orifices are machined to provide a heavy preheat pattern, which is essential for piercing and maintaining the cut on dirty or scaled plate often found in scrapping and demolition work. The smooth internal finish of the cutting oxygen bore minimizes turbulence, resulting in a straighter, cleaner cut surface that requires less post-cut grinding or machining. This efficiency makes the CS6290NH5 a cost-effective solution for high-volume cutting operations.

Interchangeability and Maintenance

This tip is fully interchangeable with OEM Harris 6290-NH tips and fits all standard Harris-style torch heads. Maintenance of the two-piece tip involves separating the inner and outer members for cleaning. Operators should use appropriate chemical cleaners or soft wire brushes to remove soot and slag, taking care not to damage the seating surfaces or the splines of the inner member. Regular inspection of the O-rings and seating surfaces on the torch head is recommended to ensure a safe, leak-proof connection during operation.