High Performance 7x14x78 Hubbed Grinding Wheels China Factory Suppliers

Looking for reliable China suppliers of hubbed grinding wheels? Our factory produces high-performance T27 discs certified by ISO9001 and EN12413. Ideal for stainless steel and carbon steel, available at competitive wholesale prices from a leading China factory.
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Engineered for high-performance industrial applications, our 7" x 1/4" x 7/8" Hubbed Grinding Wheels are designed to deliver exceptional material removal and stability. Utilizing a sophisticated blend of brown aluminum oxide and high-tensile fiberglass reinforcement, these discs ensure maximum safety and efficiency when deburring welds or dressing metal surfaces using professional angle grinders.

These professional-grade grinding wheels are specifically optimized for ferrous metals, including stainless steel, iron, and carbon steel. With a maximum circumferential speed of 80m/s and a depressed center design, they provide the perfect balance of aggressive cutting power and precise control, making them the ideal choice for tank fabrication, power plant maintenance, and heavy-duty welding shops.

Detailed Parameters

Abrasive MaterialBrown Aluminum Oxide / Silicon Carbide Max Working Speed80 M/S (8850+ RPM)
Disc Dimensions7" x 1/4" x 7/8" Hardness GradeR Grade
Bonding AgentHigh-Quality Resin Bonded Disc TypeT27 Depressed Center
Reinforcement3-Layer High Tensile Fiberglass Grit Size Options24#, 30#, 46#
CertificationMPA, EN12413, ISO9001 HS Code68042210

Key Advantages

Enhanced Safety

Featuring three full-diameter high-tensile fiberglass reinforcements to prevent breakage under extreme pressure.

Extended Lifespan

Premium resin bonding and heat-treated grains reduce wear and tear, ensuring a longer service life per disc.

High-Speed Efficiency

Rated for 80m/s, providing rapid material removal and low friction for faster project completion.

Versatile Application

Optimized for all ferrous metals, rebar, iron pipes, and stainless steel tubing across various industries.

Smooth Finish

Precision grit sizing (24# to 46#) allows for seamless transitions from rough grinding to fine polishing.

Global Standards

Fully compliant with EN12413 and ISO9001 standards, guaranteeing consistent industrial quality.

Product Gallery

Management Platforms

OEM Customization

Acceptable OEM services to tailor grit size, hardness, and branding to your specific needs.

Quality Control

Rigorous testing based on ISO9001 to ensure every disc meets stability and safety thresholds.

Rapid Logistics

Strategically shipped from Tianjin port for efficient global delivery and supply chain stability.

Bulk Packaging

Securely packed in Kraft Cartons and Pallets to prevent damage during long-distance transit.

Inventory Range

Comprehensive stock of T27 and T41 discs in multiple diameters (125mm to 400mm).

Technical Support

Expert guidance on selecting the right abrasive grain (Alumina vs Carbide) for your material.

Investment Return Comparison

Performance MetricStandard WheelsOur Hubbed WheelsROI Impact
Wear RateHigh / RapidLow / ControlledLower Replacement Cost
Cutting SpeedModerateAggressive (80m/s)Reduced Labor Hours
Safety LevelBasic Reinforcement3-Layer FiberglassMinimized Downtime/Risk
Material VersatilitySingle MaterialMulti-Metal BlendLess Tool Changeover
Cost per UnitLow Initial CostOptimal ValueLower Total Cost of Ownership

Frequently Asked Questions

Q: What is the difference between Brown Alumina and Silicon Carbide grains?

Brown Alumina is ideal for general steel and iron due to its durability and cost-effectiveness. Silicon Carbide is harder and sharper, making it superior for extremely hard materials like pig iron or stone.

Q: Are these grinding wheels compatible with all 7-inch angle grinders?

Yes, as long as your grinder supports a 7/8 inch arbor size and can handle a depressed center (T27) disc type.

Q: What does the "R" hardness grade indicate?

The R grade refers to the bond hardness, determining how firmly the abrasive grains are held. This grade provides a balance between tool life and the ability to expose new sharp grains during use.

Q: Which grit size should I choose for polishing metal welds?

Use 24# for heavy stock removal and rough grinding, and 46# for a smoother finish and finer polishing of weld beads.

Q: Do these discs meet international safety certifications?

Absolutely. Our wheels comply with EN12413 safety requirements and are manufactured under ISO9001 quality management systems.

Q: Can these wheels be used on non-ferrous metals?

While optimized for ferrous metals, our silicon carbide/alumina mixture wheels are specifically designed to provide fast, consistent cutting for aluminum and other soft alloys.

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