Classifier mill for ultrafine grinding
Achieve precise particle size distribution and contamination-free processing with this classifier mill, designed to handle ultrafine grinding challenges in complex production lines efficiently.

Grinds and Classifies Various Materials Efficiently
The ACM Classifier Mill from Hosokawa Alpine is a versatile, compact solution designed specifically for intricate grinding and classifying processes, perfectly tailored for the chemical, food, and pharmaceutical industries. Operating with an integrated classifier and grinding mechanism, it offers high precision and flexibility. The ACM can handle a wide range of materials—from resins and proteins to pharmaceuticals and spices—by adjusting classifier speeds to control particle size distribution.
This mill features a unique multi-wheel classifier system, allowing for seamless customization to achieve particle sizes as fine as d50 < 10 µm. Capable of continuous high-speed operations in demanding environments, it significantly reduces energy consumption with its efficient motor control, ensuring consistent throughput and product quality. Designed for optimal hygiene, it includes easy-to-clean surfaces and options for corrosion-resistant materials like stainless steel. ACM also complies with strict industry standards, making it a suitable choice for GMP and FDA-compliant procedures. Enhanced by PLC automation, the mill provides integration capabilities with existing production lines, supporting remote monitoring and control for improved process efficiency. Additionally, Hosokawa Alpine offers customizable configurations and full engineering support to adapt the ACM to specific production needs, ensuring a comprehensive grinding solution that is both reliable and economical.
Benefits
- Enhances product uniformity with precise particle size control.
- Decreases operational costs through energy-efficient motor optimization.
- Streamlines cleaning processes to ensure cross-contamination prevention.
- Integrates seamlessly into existing production lines with automation support.
- Adheres to pharmaceutical and food industry regulations for compliance.
- Applications
- Chemicals,Food,Powder coatings,Sugar,Detergents,Metals,Recycling materials,Spices,Plastics,Minerals,Batteries,Pharmaceuticals
- End products
- Resin granules,Aluminum powder,Recycled pet pellets,Protein powders,Polyethylene granules,Icing sugar,Pharmaceutical tablets,Chocolate powder,Dishwashing detergent granules,Talcum powder,Epoxy powder,Ground pepper,Cathode material for lithium-ion batteries
- Steps before
- Pre-crushing,Filtration,Mixing,Crushing,Bulk Handling,Weighing
- Steps after
- Separation,Classifying,Particle Size Analysis,Packaging,Sterilization,Storage
- Input ingredients
- resins,novolac,silica,aluminium hydroxide,citric acid,polymers,films,coated materials,pigments,powder coatings,cocoa,sugar,lactose,fruit,algae,soya,cereals,oats,rice,wheat,gelatine,adhesive substances,wollastonite,diatomite,talc,calcium carbonate,graphite,sodium-hydrocarbonate
- Output ingredients
- ultra-fine powder,homogeneous powder,steep particle size distribution,precise top cut
- Market info
- Hosokawa Alpine is known for its expertise in manufacturing advanced process equipment and systems for powder and particle processing technology. It has a strong reputation for innovation, quality engineering, and customer-focused solutions in various industries.
- Peripheral Speed
- Up to 130 m/s
- Fineness
- d50 < 10 µm
- Mohs Hardness
- Up to 3.5
- Particle Size Distribution
- Steep curve and exact top cut
- Specific Energy Requirements
- Low
- Pressure Shock Resistance
- Yes
- Wear Protection
- Possible
- Automation level
- Manual / PLC / SCADA
- Energy efficiency
- Low specific energy requirements
- Batch vs. continuous operation
- Batch / Inline Continuous
- Cleaning method
- Easy to clean
- Changeover time
- Fast maintenance and repairs
- Pressure shock resistance
- Yes
- Wear protection
- Possible
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Pressure shock resistance
- Yes
- Wear protection
- Optional
- Customization for different goods
- Yes
- Classifier speed adjustment
- Yes