TYPE7928-43-4 - Uniweld Type 7928 #4 Oxy-Acetylene Rosebud Heating Tip (Harris Style)

Uniweld Type 7928-43-4 Heating Head Overview

The Uniweld Type 7928-43-4 is a premium-quality heating head designed for heavy-duty industrial applications involving preheating, straightening, and bending of ferrous metals. Modeled as a direct replacement for Harris-style equipment, this multi-flame tip—commonly referred to as a "rosebud"—delivers a concentrated and high-volume heat output essential for efficient metalworking. It is engineered to operate exclusively with Oxy-Acetylene gas mixtures, leveraging the high flame temperature of acetylene to rapidly bring workpieces to the required working temperature.

Constructed from high-grade copper, the Type 7928-43-4 ensures excellent thermal conductivity and durability under high-heat conditions. The tip features a multi-port face that distributes the flame evenly over a wider surface area compared to standard welding tips, preventing localized overheating while ensuring deep heat penetration. This specific model is a Size #4, offering a balanced heat output suitable for a wide range of structural steel and pipe fabrication tasks.

Integration into existing torch setups is seamless for users of Harris-style equipment. The heating head is designed to thread onto a Uniweld UM43 mixer (or equivalent Harris-style mixer), which then connects to a standard 43 Series torch handle, such as the Uniweld 43L9. This modular assembly allows for quick changeovers between cutting, welding, and heating attachments without the need for entirely different torch bodies.

Safety and performance are paramount in the design of the Uniweld 7928 series. Users must ensure that their acetylene supply is sufficient to support the withdrawal rate of a #4 heating tip to prevent solvent withdrawal from the cylinder. When paired with the correct mixer and handle, this heating head provides a stable, flashback-resistant flame that professionals rely on for critical maintenance, repair, and fabrication operations.