1502128 - Harris 6290-2 VVC High-Speed Propane Machine Tip

Technical Overview of the Harris 6290-2 VVC Machine Cutting Tip

The Harris 6290-2 VVC (SKU 1502128) is a specialized high-speed machine cutting tip engineered for industrial fabrication environments utilizing alternative fuels such as Propane, Natural Gas, or MAPP. Unlike standard hand-cutting tips, the VVC series is designed with a specific internal geometry that accelerates the cutting oxygen stream, allowing for significantly faster travel speeds on automated cutting tables. This specific model, the Size 2, is calibrated for optimal performance on mild steel plates ranging from 2 inches to 3 inches (approximately 50mm to 75mm) in thickness.

Structurally, the tip features a two-piece, double-shell design. The inner member contains the splines for the preheat gas mixture, while the outer shell directs the mixed gases and protects the internal components. A key technical advantage of the VVC series is its heavy-duty chrome plating. In high-heat machine cutting applications, reflected heat and flying molten slag can quickly degrade standard copper tips. The chrome finish on the 6290-2 VVC reflects radiant heat, keeping the tip cooler, and prevents spatter from adhering to the shell. This ensures consistent gas flow and reduces the frequency of tip cleaning required during long production runs.

The preheat slots are precision-machined to handle the lower burning velocity of propane and natural gas compared to acetylene. By creating a stable, heavy preheat flame, the tip ensures rapid ignition and maintains the puddle temperature required for high-speed severance. Operators should ensure their machine torch is equipped with the appropriate mixer for alternative fuels to maximize the efficiency of this tip. The 6290-2 VVC is a critical component for fabrication shops looking to leverage the cost savings of propane without sacrificing cut quality or speed.