Flexovit® N5259S 5" x 2" x 5/8"-11 T-11 ZA16PB Rail Resin Cupstone
Engineered for High-Performance Rail Grinding & Heavy-Duty Metalwork
The Flexovit® N5259S Rail Resin Cupstone is specifically designed to meet the extreme demands of rail grinding, track maintenance, and other heavy-duty metalworking applications. With its 5-inch diameter, 2-inch thickness, and rugged 5/8"-11 threaded arbor, this T-11 ZA16PB steelback cupstone delivers exceptional power, durability, and consistency in the harshest environments.
Premium ZA16PB Zirconia Alumina Grain for Superior Cutting
Built with high-performance ZA16PB zirconia alumina abrasive grain, the N5259S provides:
The coarse 16-grit zirconia alumina composition is optimized for reshaping, reprofiling, and maintaining steel rail surfaces. Its self-sharpening grain structure ensures continued cutting efficiency, even in prolonged heavy grinding.
Steelback Reinforcement for Rigidity & Safety
A critical feature of the N5259S is its steel backing plate, which delivers superior rigidity during intense grinding pressure. This reinforcement enhances:
It is specifically engineered to withstand the high lateral forces associated with rail maintenance and industrial metal shaping.
T-11 Cup Shape for Maximum Surface Engagement
The T-11 cup profile maximizes contact with railheads, welds, joints, and other contoured steel surfaces. Combined with its 2-inch thickness, this cupstone ensures extended life, improved balance, and efficient grinding across large or uneven areas.
Fast, Secure 5/8"-11 Mounting
Equipped with a 5/8"-11 threaded arbor, the N5259S provides quick, reliable attachment to standard right-angle grinders—minimizing setup time and maximizing on-site productivity.
Trusted for Rail, Construction & Heavy Industry
Professionals in railway maintenance, industrial fabrication, construction, and steelwork rely on the N5259S for applications where strength, precision, and long-term reliability are essential.
Backed by Flexovit’s industry-leading abrasive innovation, the N5259S Rail Resin Cupstone delivers unmatched performance for grinding, shaping, and maintaining steel rails and other demanding ferrous metal surfaces.
