Why do international customers choose white powder to meet needs of industry?
The successful transformation from doubt to understanding and finally belief
Three months ago, Mr. Kim, a Korean grinding tool manufacturer, contacted us for the first time. He was experiencing problems with imported white fused aluminum oxide grinding powder: unstable particle size, numerous surface scratches after polishing, and significant batch-to-batch variation, resulting in a product qualification rate of only 70%.
While searching online for high-purity white corundum for abrasives suppliers, he noticed our expertise as a manufacturer, distinguished by our high purity, low impurity content, and strict grading control. He then sent us an inquiry.
In response to this situation, we immediately provided detailed technical information:
Chemical purity test report (Al₂O₃ ≥ 99.6%, Fe₂O₃ ≤ 0.05%);
Particle size distribution analysis (D50 control error ±0.2μm);
SGS third-party testing and certification.
Finally, after testing a small sample, the customer reported significant improvements in polishing accuracy and surface finish from our white corundum, with a 40% improvement in mirror finish and a product qualification rate of 98%. Finally, the customer decided to cooperate with us for a long term and purchase 80 tons of products every month.
The best performance is in actual application.
White fused aluminum oxide is widely used in the following applications:
Precision grinding and polishing for stainless steel, glass, electronic components, and more.
Surface pretreatment: High hardness ensures impurities are removed without damaging the substrate.
Wear-resistant material additives: Improve resin-bonded grinding wheels and enhance cutting efficiency.
The white corundum powder for surface processing has high purity and hardness are derived from arc furnace melting at temperatures exceeding 2000°C.
Mohs hardness: 9.0, second only to diamond.
Microhardness: HV 2200–2300.
Chemical inertness: No significant chemical reaction in acidic and alkaline environments, stable in pH 2–12.
Melting point: 2050°C, capable of withstanding high-temperature conditions.
These properties ensure its superior performance in demanding industrial and precision manufacturing applications.
Why trust us?
High-quality white fused aluminum oxide micro-powder with high batch consistency: Using a laser particle size monitoring system, each batch is tested for over 20 indicators.
Traceability: Serial numbering throughout the entire process from raw materials to smelting to crushing to screening.
Fully certified: ISO 9001, SGS, and ROHS certified.
Stable supply capacity: Annual production exceeds 80,000 tons of white fused alumina, with guaranteed delivery.
Dedicated technical support: Free particle size optimization and grinding testing services are provided to customers.
Thanks to these advantages, we have established a stable wholesale customer base in over 30 countries worldwide.
