0333-0368 - Victor Size 4 MTHN Series Machine Cutting Tip for Propane

Technical Overview of the Victor 0333-0368 4-MTHN Cutting Tip

The Victor 0333-0368 is a specialized Series 1, Type MTHN cutting tip designed for industrial machine torch applications. Engineered to facilitate heavy-duty cutting operations, this tip is calibrated for use with alternative fuels, specifically Propane and Natural Gas. The two-piece design is characteristic of high-performance tips intended for these fuel gases, separating the preheat and cutting oxygen paths to maximize thermal efficiency and flame stability during automated cutting processes. With a designated Tip Size of 4, this component is capable of severing ferrous metals with a material thickness ranging from 7 to 8 inches (approximately 178mm to 203mm), making it an essential consumable for heavy fabrication and structural steel processing environments.

Operational parameters for the 4-MTHN are specific to ensure optimal cut quality and safety. The manufacturer specifies a cutting oxygen pressure range of 85 to 95 PSIG, which provides the necessary kinetic energy to oxidize and remove molten metal from the kerf at significant depths. The preheat oxygen pressure should be maintained between 30 and 35 PSIG to establish and sustain the ignition temperature of the base metal. When set correctly, operators can expect cutting speeds between 4 and 6 inches per minute (approx. 5/6 to 4/6 ipm notation in technical sheets), balancing speed with edge quality. This tip is compatible with Victor-style machine torches that accept Series 1 consumables, ensuring seamless integration into existing automated setups.

The MTHN series is distinct in its application for high-speed machine cutting. Unlike standard hand-cutting tips, the geometry of the MTHN tip is refined to maintain a coherent oxygen stream over longer distances, which is critical when cutting thick sections of up to 8 inches. The use of Propane or Natural Gas as a fuel source not only offers economic advantages but also reduces the frequency of tip cleaning compared to acetylene in certain heavy-duty applications due to the nature of the combustion and preheat flame characteristics. This product is supplied as a single unit, ready for installation in compatible high-speed cutting machines.