08L450 - Walter ALU Grinding Wheel 4-1/2 Inch Type 27 for Aluminum

Advanced Abrasive Technology for Soft Metals

The Walter ALU™ Grinding Wheel (SKU: 08L450) represents a significant advancement in abrasive technology specifically tailored for soft, non-ferrous metals. Standard grinding wheels often fail when applied to aluminum due to the metal's low melting point and tendency to adhere to the abrasive grain, a process known as loading or clogging. Once a wheel is clogged, it ceases to cut effectively and begins to generate excessive heat, which can damage the workpiece. The Walter ALU™ series utilizes a proprietary formulation that resists this adhesion, ensuring consistent cutting action throughout the life of the wheel.

Beyond its non-loading properties, the 08L450 is engineered to improve process efficiency in industrial environments. A critical feature of this wheel is its composition, which is entirely free of waxes and lubricants. In traditional aluminum grinding, lubricants are often used to prevent clogging, but these leave a residue that must be chemically removed before welding to prevent porosity and defect. By eliminating these contaminants from the wheel itself, Walter allows operators to bypass the cleaning step entirely, moving directly from grinding to welding or coating. This 4-1/2" x 1/4" x 7/8" Type 27 wheel is optimized for angle grinders and delivers a high removal rate that significantly outperforms general-purpose abrasives on aluminum substrates.

The structural integrity of the wheel is designed to withstand the rigors of heavy-duty grinding while maintaining safety and balance. The Type 27 depressed center profile allows for aggressive material removal at a 15 to 30-degree angle, making it ideal for smoothing welds, beveling edges, and general fabrication tasks on aluminum structures. For MRO professionals and fabrication shops, the Walter ALU™ offers a tangible reduction in cycle time and consumable usage.