4-3/8" / 3-5/8" * 2-1/4" * 7/8" 4.3inch 110/90*55*22.23mm cup grinding wheel for steel
4-3/8" / 3-5/8" * 2-1/4" * 7/8" 4.3inch 110/90*55*22.23mm cup grinding wheel for steel
4-3/8" / 3-5/8" * 2-1/4" * 7/8" 4.3inch 110/90*55*22.23mm cup grinding wheel for steel

4-3/8″ / 3-5/8″ * 2-1/4″ * 7/8″inch 110/90 * 55 * 22.23mm Cup Grinding Wheel for Steel

Product Overview​​
The ​​4.3-inch Cup Grinding Wheel​​ is engineered for heavy-duty steel grinding and surface preparation, featuring a ​​reinforced ceramic bond​​ and ​​zirconia-alumina abrasive grains​​ for exceptional durability and cutting efficiency. Designed with a ​​cup-shaped profile​​, this wheel maximizes contact area while minimizing vibration, making it ideal for ​​high-speed angle grinders​​ (up to 12,000 RPM) and industrial grinding machines. Its ​​22.23mm arbor​​ ensures compatibility with standard 7/8″ tool interfaces, widely used in shipyard maintenance, structural steel fabrication, and automotive repair. The wheel’s ​​multi-layered abrasive structure​​ prevents heat buildup during prolonged use, achieving a balance between aggressive material removal and surface finish quality.

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Product Advantages

1.​​Enhanced Heat Resistance​​: The ​​ceramic bond​​ ensures thermal stability at temperatures exceeding 800°C, reducing wheel wear by 40% compared to resin-bonded alternatives.
2.​​High Grinding Efficiency​​: ​​Zirconia-alumina grains​​ self-sharpen during operation, maintaining consistent cutting performance even on hardened steel (HRC 50+).
3.​​Low-Vibration Design​​: The ​​cup geometry​​ distributes grinding forces evenly, reducing operator fatigue and extending tool lifespan by 30% in high-torque applications.

Applications

1.Structural Steel Fabrication​​: Perfect for smoothing welds and deburring beams in bridge and skyscraper construction.
2.Automotive Repair​​: Removes rust and preps surfaces on chassis, exhaust systems, and engine components.
3.Shipyard Maintenance​​: Efficiently grinds marine-grade steel plates and corroded surfaces in harsh saltwater environments.

Specifications

D x T x H mm INCH RPM GRIT PCS/CTN G.W. kg/CTN L x W x H cm
110/90*55*22.23 4-3/8” / 3-5/8” * 2-1/4” * 7/8″ 8680 16 18 16 35*25*24
110/90*55*22.23 4-3/8” / 3-5/8” * 2-1/4” * 7/8″ 8680 24 18 16 35*25*24
110/90*55*22.23 4-3/8” / 3-5/8” * 2-1/4” * 7/8″ 8680 36 18 15 35*25*24
110/90*55*22.23 4-3/8” / 3-5/8” * 2-1/4” * 7/8″ 8680 60 18 15 35*25*24

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