998797 - ESAB Type 55 Multi-Flame Heating Head - Size 55 Acetylene

Heavy-Duty Industrial Heating Solutions

The ESAB 998797 Rosebud O-A Tip AY #55 is a premier solution for industrial maintenance and fabrication environments requiring substantial heat input. Known in the trade as a "rosebud" due to its multi-flame configuration, this heating head is engineered to deliver a high volume of BTUs over a wide surface area, making it distinct from concentrated welding or cutting tips. This specific model is calibrated for Oxy-Acetylene gas mixtures, leveraging the high flame temperature of acetylene to rapidly bring heavy steel sections to working temperature.

In MRO (Maintenance, Repair, and Operations) settings, time is often the most critical resource. The Size #55 orifice arrangement ensures that operators can achieve the necessary thermal soak for tasks such as straightening bent structural members, preheating heavy castings before welding to prevent cracking, or expanding parts for shrink-fit assemblies. The tip is constructed from high-grade copper, which provides excellent thermal conductivity and durability against the intense reflected heat generated during operation.

Safety and compatibility are paramount with high-flow heating equipment. The ESAB 998797 is designed to fit specific heavy-duty handles within the ESAB, Purox, and Oxweld families, ensuring a secure gas seal and proper flow characteristics. Industrial safety officers should note that due to the high withdrawal rate of acetylene required by a #55 rosebud, it is essential to manifold cylinders or use sufficient cylinder sizes to prevent withdrawing acetone from the supply tank (adhering to the 1/7th rule). This tip represents a robust, professional-grade component for serious metalworking applications.

Key Industrial Applications

• Structural Straightening: Applying heat to correct deformations in I-beams and channels.
• Preheating: Raising the temperature of thick plate or castings prior to welding to ensure weld integrity.
• Shrink Fitting: Expanding bearings, collars, or rings for assembly onto shafts.
• Bending and Forming: Softening bar stock or plate for manual or mechanical bending.