4″ 80 Grit Aluminium Oxide Flap Disc

Qing Yang Professional Abrasive Solutions ​ ​

As a leading flap discs manufacturer in China, Qing Yang® focuses on providing high-precision 4-inch aluminum oxide flap discs for the industrial sector. The product adopts a reinforced fiber matrix with a thickness of 6.5mm, taking into account both rigid support and flexible grinding characteristics, and is suitable for standard angle grinder (5/8″-11 thread) operation scenarios.

Product advantages​ ​

• High-density aluminum oxide coating achieves uniform material removal rate
• Thickened substrate design extends service life by 20% (compared to the industry standard 4mm thickness)
• Multi-layer sand flap structure avoids the risk of sudden fracture

​ ​Technical specifications​ ​

​ ​Industrial application scenarios​ ​

Applicable to the entire process of metal surface treatment:

• Cleaning of steel structure welds (flap disc for steel)
• Deburring of castings (metal grinding flap discs)
• Fine grinding of titanium alloy surfaces (metal polishing flap disc)

Fully compatible with angle grinder flap discs from brands such as Bosch and Makita.

​ ​Enterprise customization service ​ ​

Support ODM/OEM in-depth cooperation:

• Packaging customization: heat shrink film/color box/tin can packaging
• Color coding: identification system distinguished by particle size
• Brand authorization: private label flap discs Minimum order quantity 100,000 pcs (special specifications negotiable)

​ ​Global supply chain guarantee ​ ​

Current main supply market:

• Middle East: Saudi Arabian pipeline engineering supporting company
• Southeast Asia: Vietnamese machinery processing plant
• South America: Brazilian auto parts company Support full container shipment (bulk order flap discs) and FOB terms

​ ​Quality verification process ​ ​

Provide three-stage quality control:

1. Substrate tensile strength test (＞18kN/m²)
2. Dynamic balance check (≤15g·mm)
3. Free sample measurement (free flap disc samples)

​ ​Disclaimer ​​：This article mentions brands such as Bosch and Makita only to illustrate device compatibility. Qing Yang® has no commercial affiliation with these brands.