62781 - Pferd Polifan Zirconia Flap Disc Type 29 4.5-Inch 40 Grit

High-Performance Grinding with Pferd Zirconia Alumina

The Pferd 62781 Type 29 Flap Disc is engineered for industrial professionals who demand efficiency and longevity in their abrasive consumables. Built with premium Zirconia Alumina grain, this 4.5-inch disc is designed to withstand the rigors of heavy-duty stock removal on hard materials. Unlike standard aluminum oxide discs, Zirconia Alumina features a self-sharpening micro-crystalline structure that fractures under pressure to reveal fresh, sharp cutting edges. This mechanism ensures that the disc maintains a consistent cutting rate throughout its service life, reducing downtime associated with frequent disc changes.

This specific model features a Type 29 conical profile. The angled design allows for greater surface contact when held at the standard grinding angle of 15 to 25 degrees. This makes it exceptionally effective for contour work, edge grinding, and aggressive weld seam removal. The 40 grit abrasive is coarse, making it the ideal choice for the initial stages of fabrication where rapid material removal is the priority over surface finish. It bites into the metal effectively, stripping away heavy welds, mill scale, and imperfections with ease.

Pferd has optimized this flap disc for use with high-powered angle grinders, specifically those rated at 8.5 Amps or higher. High-torque tools are required to apply sufficient pressure to fracture the tough Zirconia grain properly. When paired with the right tool, this disc delivers an outstanding ratio of stock removal to disc wear. It is versatile enough to handle both Carbon Steel and Stainless Steel (INOX), making it a staple inventory item for fabrication shops, maintenance departments, and structural steel operations. The robust fiberglass backing plate adds stability and safety during high-speed operation.

Industrial Applications

• Structural Steel Fabrication: Rapid removal of heavy weld seams and beveling plate edges.
• Tank and Vessel Manufacturing: Grinding stainless steel welds and blending contours.
• Maintenance and Repair: Aggressive cleaning of rusted surfaces and heavy deburring.