Drum mills for fine grinding of large volumes
Achieve consistent and precise pulverization of large sample volumes with drum mills, optimizing particle size for enhanced material properties in R&D and production environments.

Pulverizes and Grinds Large Volumes Efficiently
The Drum Mill TM 300 and TM 500 from Retsch are robust solutions designed for fine grinding and pulverization in large volumes, crucial for chemical, pharmaceutical, and material science industries. Operating with either wet or dry processes, they efficiently reduce material feed sizes of up to 20 mm to final finenesses as low as 15 µm, depending on module choice. The drum mills are suitable for batch, pilot, and continuous operations, processing solids, powders, and slurries. Available drum sizes range up to 150 liters, ensuring flexibility for various production needs. Constructed from 316L steel, they offer superior corrosion resistance, essential for handling fine chemicals and active pharmaceutical ingredients. Their design integrates seamlessly into existing production lines, offering customization options for specific operational requirements while maintaining energy efficiency and ease of maintenance.
Benefits
- Achieves precise particle size reduction essential for high-quality end products.
- Enhances production efficiency with versatile wet and dry grinding options.
- Supports large-volume processing, minimizing the need for frequent batch changes.
- Offers corrosion resistance, extending equipment lifespan in chemical environments.
- Integrates seamlessly into existing production lines, allowing for streamlined operations.
- Applications
- Metal powders,Detergents,Fine chemicals,Pharmaceutical powder,Minerals
- End products
- Dental powders,Active pharmaceutical ingredients (apis),Metallic pigments,Powdered detergents,Mineral fines,Catalytic powders
- Steps before
- Grinding,Material Feed Size Reduction
- Steps after
- Sieving,Particle Analysis,Packing
- Input ingredients
- large feed sizes,large sample volumes,material feed size < 20 mm
- Output ingredients
- final fineness < 20 µm,final fineness < 15 µm,final fineness < 100 µm,final fineness < 2,100 µm
- Market info
- Retsch is renowned for manufacturing high-quality laboratory equipment, specializing in milling, sieving, and assisting technologies for sample preparation and characterization, known for precision, reliability, and innovation in the scientific and industrial laboratory markets.
- Material feed size
- < 20 mm
- Final fineness
- < 15 µm (TM 500),< 20 µm (TM 300)
- Grinding drum sizes
- 5 l,10 l,21.7 l,43.3 l (TM 300),150 l (TM 500)
- Grinding media
- Balls or rods
- Bond Index Tester size
- 21.7 l with ball module / 43.3 l with rod module
- Bond Index Tester final fineness
- <100 µm with ball module / 2,100 µm with rod module
- Working mechanism
- Ball mill operation
- Grinding conditions
- Dry or wet
- Batch vs. continuous operation
- Batch
- Integrated testing capability
- Bond Index Tester
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Material Compatibility
- 316L steel version available
- Milling mechanism
- Balls / Rods
- Mechanical and Safety Standards (assumed)
- EN 60204-1
- Quality Management Standards (assumed)
- ISO 9001
- Drum size
- 5 l / 10 l / 21.7 l / 43.3 l / 150 l
- Material feed size
- < 20 mm
- Grinding Media
- Balls / Rods