5 Inch Grinding Wheel Manufacturer | 125mm 3.0mm

Qing Yang® is a China grinding wheel manufacturer focused on the B2B market. Our core 5 inch grinding wheel in 125×3.0×22.2mm specification (5″ x 1/8″ x 7/8″) is designed for metal surface preparation, weld grinding and edge finishing on 125mm angle grinders. Compared with our 5 inch cutting discs, this 125mm grinding disc is built for controlled stock removal rather than through-cuts, giving distributors a dedicated option for grinding work instead of mixing it with cut-off wheels.

Product advantages of the 5 inch grinding wheel

• Wear-resistant 3.0mm grinding profile
  The 3.0mm thickness of this 5 inch grinding wheel balances fast stock removal with wheel life. Operators can dress welds, bevel edges and clean scale without the wheel glazing over too quickly or chattering on the work surface.
• Double fiberglass reinforcement for safety
  Two layers of glass fibre mesh are embedded in the bond, allowing the 125mm grinding wheel to run safely at 80 m/s and 12,200 RPM on standard 5 inch angle grinders. This matches the safety level expected by industrial users who already buy our cut-off wheels.
• Metal-focused abrasive formulation
  The aluminum oxide grain blend is tuned for carbon steel and stainless steel surface preparation. It removes weld beads and heat-tint while leaving a consistent scratch pattern that is easy to blend before painting or galvanizing.
• True 5 x 1/8 x 7/8 grinding wheel sizing
  With a 125mm outer diameter, 3.0mm (1/8″) thickness and 22.2mm (7/8″) bore, the wheel drops straight onto mainstream 5 inch grinders from brands like Bosch or Makita without adapters, making it a practical SKU for global distributors.

Technical specifications – 125mm grinding wheel

Main application areas for the 5 inch grinding wheel

Metal surface preparation before coating
Fabrication shops use this 125mm grinding wheel to remove mill scale and rust from carbon steel plates before painting or galvanizing. The 3.0mm profile keeps enough face area in contact for stable grinding, while the aluminum oxide grain cuts cleanly without burning the workpiece.

Weld bead removal and blending
On structural steel, pipe spools and automotive frames, the 5 inch grinding wheel is used to knock down weld beads and blend the toe of the weld into the parent material. Compared with a 5 inch cutting disc, this grinding wheel allows the operator to work on the weld crown without risking accidental cut-through.

Edge beveling and chamfering
When a small bevel is needed on plate edges or flat bar before welding, the 125mm grinding wheel gives better control than a larger 7 inch grinding wheel, especially on lighter machines in the 700–1,200 W range.

Deburring of automotive and machinery parts
Automotive and machinery factories use this 5 x 1/8 x 7/8 grinding wheel on 125mm angle grinders for burr removal on laser-cut or plasma-cut edges, brackets and small components, where a compact grinding wheel is easier to control than a 180mm or 230mm disc.

Accessories and compatibility for 125mm grinders

The 5 inch grinding wheel is supplied with standard T42 fixing nuts, so it can be mounted directly on 125mm angle grinders fitted with 22.2mm (7/8″) arbors. This allows distributors to list it alongside 125mm cutting discs as the dedicated grinding option for the same machines, simplifying range planning for 5 inch angle grinder discs.

In use, the 125mm grinding disc runs at up to 12,200 RPM on typical 5 inch grinders from Bosch, Makita and similar brands. Distributors do not need to stock special flanges or guards beyond what customers already use for standard 125mm grinding wheels.

OEM and wholesale supply from a 5 inch grinding wheel manufacturer in China

Qing Yang® supplies 5 inch grinding wheels directly from our ISO-certified grinding wheel factory in Zhejiang, China. For B2B buyers, this SKU is positioned as the 125mm grinding disc for surface preparation and weld grinding to sit next to your 5 inch cutting disc range, giving end users a clear choice between cutting and grinding.

• Private label 5 inch grinding wheel – We print your brand and safety information on the blotter, design matching cartons, and align the 125×3.0×22.2mm grinding wheel with your existing 125mm cut-off wheel SKUs so the range looks consistent on the shelf.
• MOQ and pricing – Standard MOQ is 100,000 pieces for new OEM projects, with volume-based pricing for annual demand above this level. For recurring local customers we can discuss flexible minimums from around 300 pieces per call-off, making it easier to top up stock without committing to a full container every time.
• Lead time and logistics – Sample grinding wheels are provided free of charge for cut and grind testing. Regular production lead time is 15–25 days after order confirmation, with FOB Ningbo / Shanghai and CIF options for key ports in the Middle East, Asia, South America and Europe.

Frequently Asked Questions – 5″ Grinding Wheel 125mm