0333-0356 - Victor Size 3 MTHP Propylene Machine Cutting Tip

Technical Overview of the Victor 3-MTH-P Cutting Tip

The Victor 0333-0356 is a specialized Series 1 Type MTHP cutting tip designed for high-speed machine cutting applications utilizing Propylene as the fuel gas. Engineered for precision and efficiency in industrial environments, this Size 3 tip is capable of severing material thicknesses up to 6 inches (152mm). The MTHP series is distinguished by its ability to maintain stable preheat flames and high-velocity cutting oxygen streams, essential for automated cutting tables where consistency and edge quality are paramount.

Technically, the 3-MTH-P features a two-piece construction, a design necessity for alternative fuels like Propylene which require a recessed tip end to anchor the flame properly compared to Acetylene. The tip operates within a specific gas pressure envelope to achieve optimal performance: Cutting Oxygen requires 85-95 psig, while Preheat Oxygen should be set between 30-35 psig. The fuel gas pressure is rated for low-pressure delivery (8 oz +), ensuring safe and efficient mixing. Consumption rates are substantial, reflecting its heavy-duty capacity, with total oxygen consumption ranging from 285 to 320 cfh and fuel gas consumption between 12 and 65 cfh depending on the specific flame setting and cutting depth.

The physical architecture of the tip includes a brass body measuring approximately 0.8 x 0.8 x 3.3 inches, designed to dissipate heat effectively during prolonged cutting cycles. The cutting speed for this specific size ranges from 5 to 10 inches per minute (ipm), allowing for rapid processing of thick structural steel plates. By utilizing Propylene, operators can achieve cleaner cuts with less slag accumulation compared to standard propane tips, provided the oxygen-to-fuel ratios are strictly maintained according to the manufacturer's specifications. This tip is an integral component for fabrication shops requiring high throughput and minimal post-cut grinding.

Installation requires a compatible Victor-style machine torch. The seating surfaces are precision-machined to ensure a gas-tight seal, preventing backfires and leaks. Regular inspection of the seating area and the tip orifice is recommended to maintain the laminar flow of the cutting oxygen stream, which is critical for maintaining the verticality of the cut face on 6-inch materials.