Type7928-43-8 - Uniweld Type 7928-43 Series #8 Oxy-Acetylene Heating Tip

Technical Overview of the Uniweld Type 7928-43-8 Heating Head

The Uniweld Type 7928-43-8 is a specialized heating head assembly engineered for industrial oxy-acetylene applications requiring significant thermal input. Part of the Type 7928-43 series, this component is designed to facilitate heavy-duty preheating, metal straightening, and bending operations where a standard welding tip would provide insufficient heat distribution. The head features a multi-flame design, often referred to in the industry as a "rosebud," which allows for a broad, even application of heat across a larger surface area compared to single-orifice tips. This design is critical for maintaining metallurgical integrity during thermal manipulation, as it reduces the risk of localized hot spots that can lead to material degradation.

Technically, this heating head is calibrated for use with Oxygen and Acetylene gas. It is sized as a #8 tip, indicating a high flow capacity and substantial BTU output suitable for working with thicker steel sections and structural components. Proper integration into a torch system is essential for safety and performance; this specific model is designed to mate with the Uniweld UM43 mixer. The mixer ensures the correct volumetric ratio of oxygen to fuel gas before it reaches the heating head, preventing flashbacks and ensuring a stable flame cone. The assembly is intended for use with Uniweld's 43 Series torch handles, such as the 43L9, providing a secure and ergonomic platform for the operator.

The construction of the Type 7928-43-8 utilizes high-conductivity alloys to manage the intense heat generated during operation, dissipating thermal energy to prevent tip overheating. Operators must ensure that their gas supply system—specifically the acetylene cylinder capacity—is sufficient to support the withdrawal rate required by a #8 size tip to avoid drawing acetone from the cylinder. This component represents a critical tool for MRO (Maintenance, Repair, and Operations) environments, fabrication shops, and structural steelwork where controlled, high-intensity heating is a daily requirement.