48L015 - Walter Field-Mate Pneumatic Drum 5" x 3-1/2" (5/8-11 Arbor)

Technical Overview of the Walter 48-L-015

The Walter 48-L-015 Pneumatic Drum is a specialized accessory designed for the Field-Mate linear finishing system. Engineered to hold abrasive belts securely, this 5-inch diameter drum utilizes air pressure to expand its rubber body, gripping the belt from the inside while providing a cushioned backing. The drum features a standard 5/8"-11 internal thread, making it directly compatible with Walter Field-Mate tools and other linear polishers with matching spindles.

With a width of 3-1/2 inches, this drum accommodates a wide range of abrasive belts, including coated abrasives, non-woven conditioning belts, and felt polishing belts. The pneumatic nature of the drum is its defining technical feature; by adjusting the internal air pressure, operators can modify the drum's hardness. Higher pressure creates a firmer face for flat surfaces, while lower pressure allows the rubber to deform and conform to curved or irregular workpieces. This adaptability reduces the risk of gouging and ensures a consistent finish across complex geometries. The unit is rated for a maximum speed of 3,800 RPM, aligning with the optimal speed ranges for linear finishing applications.

Maintenance and Compatibility

The 48-L-015 is constructed from high-durability rubber resistant to wear and heat buildup. It includes a standard air valve for inflation, accessible from the side of the drum. Regular inspection of the valve and rubber surface is recommended to ensure safety and performance. This component is essential for professionals utilizing the Field-Mate system for tasks ranging from heavy stock removal to mirror-finish polishing.