High-Efficiency Pin Mill for Fine Grinding
Guibao Group – China's No. 1 Manufacturer of Pin Mills Since 1984
Advanced precision grinding for pharmaceuticals, food, and fine chemicals.
Driven by the screw, materials enter the milling chamber of the pin mill at a constant speed. The annular pin forests of the high-speed rotating rotor and stationary stator alternately buckle. As the rotor rotates at high speed (linear speed up to 250 m/s), it generates strong centrifugal force. Materials pass through the pin forests and collide repeatedly (material-to-material and material-to-pin collision), achieving the milling effect. The pin mill is screen-free, and the minimum milling particle size can reach 5 microns (D90).
Key Applications & Processing Materials
Guibao Pin Mill is designed for precision size reduction across sensitive and demanding industries, ensuring high purity and controlled particle size (down to D97 < 5μm).
- 💊 Pharmaceutical Raw Materials: Active Pharmaceutical Ingredients (APIs), Excipients, and Intermediates requiring strict non-contamination and ultra-fine particle distribution.
- 🧂 Food & Beverages: Processing Sugar, Salt, Spices, Herbs, and Food Additives. Ideal for heat-sensitive materials to preserve flavor and active compounds.
- 🧪 Fine Chemicals: Handling Dyes, Pigments, Resins, Fertilizers, and various Specialty Powders that demand high throughput and uniform results.
Product Features of the Pin Mill
| Feature | Benefit / Solves Pain Point |
|---|
| Screen-free design: | No clogging, lower maintenance costs, high rotation speed, and adjustable speed—optimizing adaptability to different materials. |
| Ultra-fine milling capability: | The finest milling particle size can reach 5 microns (D90), highlighting the pin mill's ultra-fine milling capability. |
| Wide application range: | Widely used in pharmaceutical, food, and chemical industries to meet diverse processing needs. |
| Advanced feeding system: | Equipped with a screw powder feeding system, suitable for various APIs with poor fluidity (such as snowflake-like, flocculent materials, etc.) and can realize linear feeding for stable processing. |
| Durable construction: | The pin disk components are made of TC4, SUS304, or SUS316L, featuring high strength, corrosion resistance, and long service life—ensuring the equipment's durability. |
| Advanced dust control: | The control cabinet is fully enclosed. Equipped with forced fans and H13 filters on both air inlet and outlet to prevent dust and maintain a stable operation environment. |
| Effective temperature control: | The pin mill's milling chamber adopts circumferential water cooling, and the transmission shaft adopts circumferential water cooling + air seal air cooling—effectively controlling temperature rise during high-speed operation. |
| Secure material handling: | The main shaft adopts multiple seals (lip seal and positive pressure seal) to prevent material leakage and ensure processing safety. |
Trusted by Industry Leaders
Guangzhou Tinci Materials Technology Co., Ltd.
Second PHARMA Co., Ltd.
Do-Fluoride New Materials Co., Ltd.
Jiangsu Coben Pharmaceutical Co., Ltd.
Baotou FDK Co., Ltd.
Rianlon Corporation
COFCO Chongzuo Sugar Co., Ltd.
Too many customer cases to display here – Email us for detailed solutions.
FAQ
Q: What's needed for a detailed pin mill quote?
A: Material to be crushed, feed particle size, discharge particle size, and capacity in kg/h.
Q: What's the warranty?
A: 1-year warranty on the entire machine, excluding wear parts.
Q: What certifications do you have?
A: CE, ISO, and other certifications.
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