48H396 - Walter COOLCUT XX 4.5 Inch Ceramic Resin Fiber Disc Grit 36

Technical Analysis: Walter COOLCUT XX™ Ceramic Sanding Disc

The Walter COOLCUT XX™ (SKU: 48H396) represents a significant advancement in resin fiber disc technology, specifically engineered for high-production environments requiring rapid stock removal. This 4-1/2" disc utilizes Walter's proprietary Cyclone™ Technology, a sophisticated blend of premium ceramic grains that are geometrically optimized to fracture under pressure. This self-sharpening mechanism ensures that fresh, sharp cutting edges are continuously exposed, maintaining a consistent material removal rate (MRR) throughout the lifespan of the disc. Unlike conventional aluminum oxide abrasives that dull and generate excessive friction, the ceramic structure of the COOLCUT XX™ cuts cooler, mitigating the risk of heat-affected zones (HAZ), thermal discoloration, and warping, particularly on heat-sensitive alloys like stainless steel.

Designed with a 36-grit profile, this disc is categorized for coarse applications, making it the optimal choice for leveling heavy weld seams, removing mill scale, and aggressive surface preparation. The 7/8" arbor configuration ensures compatibility with standard angle grinders when paired with an appropriate backing pad. The disc is constructed with a heavy-duty vulcanized fiber backing that provides the necessary rigidity to withstand high contact pressures, further enhancing the grain's ability to penetrate the substrate. For industrial MRO operations, the extended service life—up to six times that of standard discs—translates to reduced downtime for changeovers and lower total cost of ownership.

Operational efficiency is maximized when this disc is used in conjunction with Walter's Turbo-Action™ backing pads, which are designed to facilitate airflow behind the disc, further reducing operating temperatures. The COOLCUT XX™ is compatible with a wide range of ferrous and non-ferrous metals, including carbon steel, stainless steel, and aluminum, making it a versatile consumable for diverse fabrication challenges.