A well-known Egyptian manufacturer specializing in coatings and anti-corrosion materials has long been engaged in the production and application of zinc phosphate as a high-end anti-corrosion pigment. Zinc phosphate is an important non-toxic anti-corrosion pigment widely used in marine coatings, heavy-duty anti-corrosion coatings, and powder coatings. With increasingly stringent market demands for product performance, the customer needed to grind zinc phosphate powder to an ultra-fine level to improve its dispersibility, hiding power, and anti-corrosion efficiency in coatings.
The customer’s previous traditional mechanical grinding equipment struggled to stably achieve a particle size of D50 5-7μm, resulting in low yield, high energy consumption, and broad particle size distribution, which severely impacted downstream product quality and production efficiency.
After extensive evaluation and lab-scale testing, the customer ultimately selected the MJW series Air Classifier Mill from Qingdao エピックパウダー Machinery Co., Ltd. (Epic Powder) as the core grinding equipment.
Solution
Epic Powder provided a customized ultra-fine grinding system centered on the MJW500 Air Classifier Mill. The system integrates a high-precision turbine classifier, pulse dust collector, induced draft fan, and fully automatic PLC control, achieving closed-circuit grinding and dust-free production.
Performance Verification and Results
In the Egyptian client’s zinc phosphate grinding project, the MJW500 Air Classifier Mill performed exceptionally, fully meeting the client’s stringent specifications:
| パフォーマンス指標 | Target Requirement | Actual Achievement |
| 機器モデル | Epic Powder MJW500 | Epic Powder MJW500 |
| Final Particle Size D50 | 5 – 7 μm | Precisely controlled at 6.2 μm |
| Design Capacity | 138 kg/h | Stably achieved 130-150 kg/h |
| Product Quality | Narrow distribution, free of coarse particles | Meets standards for high-end coating applications |
結論
This project represents another successful case for Epic Powder in the field of ultra-fine grinding of phosphate-based materials in the Middle East-Africa region. The MJW series air classifier mill, with its characteristics of high efficiency, precision, and energy savings, has become the preferred equipment for the ultra-fine processing of anti-corrosion pigments such as zinc phosphate, iron phosphate, and zinc aluminate. Epic Powder will continue to provide professional and reliable complete powder processing solutions for global customers.
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