MW411 - Smith MW411 Medium Duty Oxy-Propane Brazing Tip Assembly

Smith MW411 Medium Duty Propane & Natural Gas Brazing Tip

The Smith MW411 is a precision-engineered medium-duty brazing tip assembly designed specifically for use with alternative fuel gases, including propane, natural gas, and propylene. Unlike standard acetylene tips, the MW411 features internal geometry optimized for the flow rates and combustion characteristics of these slower-burning gases, ensuring a stable, focused flame that resists blow-off even at higher pressures. This tip is an integral component for professionals utilizing the Smith MW400 series ecosystem and is fully compatible with Smith WH100, MW5A, and CW5A torch handles.

In industrial and jewelry applications, the MW411 distinguishes itself with its versatility. It offers a substantial brazing capacity, capable of handling material thicknesses between 1/2 inch and 5/8 inch. This thermal output makes it suitable for a wide range of HVAC, plumbing, and general fabrication tasks where the cost-efficiency and availability of propane are preferred over acetylene. Furthermore, the tip is rated for high-temperature applications, specifically the melting of platinum (up to 2 ounces), demonstrating its ability to concentrate heat effectively despite the diffuse nature of propane flames compared to acetylene.

The assembly includes both the nozzle and the tip, ensuring a proper seal and optimal gas mixing at the point of combustion. Users must ensure they are utilizing the correct fuel gas settings—typically requiring different regulator pressure adjustments than acetylene—to achieve the neutral flame required for quality brazing. The Smith MW411 represents a robust solution for operators seeking to leverage alternative fuels without compromising on the quality or control of their brazing operations.

Technical Specifications: The tip falls under the Medium Duty division and is part of the MW400 series. It is not designed for use with acetylene. Proper flashback arrestors and check valves rated for fuel gas type should always be employed in the gas train when switching fuel sources.