Alpha's aluminum oxide flap discs are designed for metal grinding, polishing, and deburring, addressing the pain points of low efficiency and poor surface quality in processing faced by overseas users.
Product Features:
・Efficient grinding performance: High-quality aluminum oxide abrasive combined with a multi-layer flap design boosts grinding efficiency by 30% compared to ordinary grinding discs, meeting the high-frequency metal processing needs of overseas users— a key advantage of Alpha's aluminum oxide flap discs.
・Long-lasting durability: The combination of high-strength base material and wear-resistant aluminum oxide extends service life, reducing the cost and time loss of frequent disc replacement for overseas users.
・Fine polishing effect: Precise abrasive grain distribution minimizes scratches on metal surfaces, satisfying overseas users' high requirements for the surface finish of processed parts.
・Versatile compatibility: Compatible with mainstream grinding equipment and suitable for various metals such as stainless steel and carbon steel, covering multiple scenarios like overseas auto repair and hardware manufacturing— expanding the application range of aluminum oxide discs and aluminum oxide flap discs.
・Safety and stability: Strict quality control ensures no easy cracking during high-speed operation, complying with overseas safety standards and avoiding potential work safety hazards.
Specification:

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China AO:AXFDA001 | Import AO:AXFDA002 |
Material:Refined aluminum oxide grain with X weight flexible cotton cloth. Backing:Reinforced fiberglass backing. Type:T27(flat)/T29(conical) Flaps Version:Single/double/Interleaved fitted version in standard and high density. Recommended Applications:Deburring;removing welding seams and spots;removing scale,rust,and oxidation of any kind. Work Surfaces:Alloyed and unalloyed steel,aluminum,nonferrous metals and alloys,steel,plastic,wood etc. | Material:Imported aluminum oxide grain with X weight flexible cotton cloth. Backing:Reinforced fiberglass backing. Type:T27(flat)/T29(conical) Flaps Version:Single/double/Interleaved fitted version in standard and high density. Recommended Applications:Deburring;removing welding seams and spots;removing scale,rust,and oxidation of any kind. Work Surfaces:Alloyed and unalloyed steel,aluminum,nonferrous metals and alloys,steel,plastic,wood etc. |

Diam.×Bore(mm) | Grit Available | Max. RPM | Packing (units/pcs) |
100×15 | P24/P36/P40/P60/P80/P100/P120/P150/P180/P240/P320 | 15,300 | 10 |
100×16 | P24/P36/P40/P60/P80/P100/P120/P150/P180/P240/P320 | 15,300 | 10 |
115×22 | P24/P36/P40/P60/P80/P100/P120/P150/P180/P240/P320 | 13,300 | 10 |
125×22 | P24/P36/P40/P60/P80/P100/P120/P150/P180/P240/P320 | 12,200 | 10 |
150×22 | P24/P36/P40/P60/P80/P100/P120/P150/P180/P240/P320 | 10,200 | 10 |
180×22 | P24/P36/P40/P60/P80/P100/P120/P150/P180/P240/P320 | 8,500 | 10 |
230×22 | P24/P36/P40/P60/P80/P100/P120/P150/P180/P240/P320 | 6,600 | 10 |
250×22 | P24/P36/P40/P60/P80/P100/P120/P150/P180/P240/P320 | 6,000 | 10 |
Why Choose Alpha Technology for Flap Discs?
Precision Engineering
High-durability abrasives such as ceramic alumina and zircon are adopted to ensure efficient grinding, deburring, and stainless steel surface finishing. This not only reduces the risk of thermal damage but also extends the tool life.
Global Expertise, Local Solutions
Leveraging transnational industry management experience and local partners, we accurately meet regional market demands (e.g., adaptation of high-temperature-resistant materials to tropical climates) and provide customized specifications (Type T27/T29, 40-320 grit).
Rigorous Quality Assurance
Through ISO certification and strict QC processes, pre-production samples of each batch are tested to ensure a stable friction coefficient and low wear rate, complying with the international standard of JB/T 9713.
Value-Added Flexibility
We support OEM/ODM services and offer a variety of options ranging from fiberglass backings to eco-friendly materials. These products are suitable for scenarios involving carbon steel, alloys, etc., helping to reduce the overall grinding cost.
Efficiency-Driven Design
The unique flap structure continuously releases new abrasives, enabling uniform surface treatment and low-vibration operation. This increases work efficiency by over 30% while reducing worker fatigue.
FAQ
Q: Is aluminum oxide better than ceramic sanding discs?
A: Alpha Technology’s aluminum oxide (used in aluminum oxide discs and aluminum oxide flap discs) and ceramic sanding discs each have advantages: Aluminum oxide offers high cost-effectiveness and strong versatility, suitable for regular metal/wood sanding; ceramic sanding discs excel in sharpness and durability but come with higher costs. The choice depends on the sanded material, precision requirements, and budget—there is no absolute "better" option.
Q: What are the disadvantages of aluminum oxide?
A: The disadvantages of aluminum oxide (a key component in Alpha Technology’s aluminum oxide discs and aluminum oxide flap discs) include: Its durability is inferior to high-end abrasives like ceramic, and it is prone to wear when sanding high-hardness materials for a long time; when sanding high-heat-resistant materials, its heat dissipation is average, which may affect efficiency.
Q: Is aluminum oxide dust harmful?
A: Aluminum oxide dust (generated from the use of Alpha Technology’s aluminum oxide discs and aluminum oxide flap discs) is harmful: Long-term inhalation can irritate the respiratory tract, and excessive inhalation may cause lung problems (such as the risk of pneumoconiosis). It is necessary to wear dust masks, ensure good ventilation in the working environment, and avoid dust accumulation.