Dry grinding mill for superfine products

Achieve high fineness in your comminution processes with this advanced dry grinding mill, ideal for producing ultrafine particles with precise classification, minimizing waste and maximizing efficiency in your production line.

Achieves Superfine Grinding and Particle Classification

The ATR Dry Grinding Mill, part of Hosokawa Alpine’s advanced powder processing solutions, excels in achieving superfine particle sizes necessary for high-quality end-products such as ceramic tiles and white pigments. It operates using a vertical agitated media milling system where a rotating agitator shaft stirs ceramic grinding beads within a water-cooled chamber, ensuring a consistent milling process ideal for mineral fillers and glazing raw materials. This mill supports a processing capacity tailored for continuous operations, seamlessly integrating into existing production lines with its PLC-controlled features. Offering options for aluminum oxide or custom wear-resistant materials, it maintains material purity by minimizing contamination. Energy efficiency is maximized through low peripheral speeds while grinding beads can be recycled back into the process. Customization options include specialized grinding bead materials and chamber linings, backed by Hosokawa Alpine’s engineering support, to meet diverse industrial needs, from chemical producers to food processing companies.

Benefits

  • Enhances material purity by utilizing iron-free grinding.
  • Minimizes operational costs with low grinding media wear.
  • Increases product uniformity with precise particle classification.
  • Cuts energy consumption due to optimal peripheral speeds.
  • Extends service life with wear-resistant material options.

General


Applications
Limestone,Titanium dioxide,Aluminium oxide,Zircon sand,Ceramic colours,Frits,Quartz,Wheat flour,Starch,Glazing raw materials,Non-mineral hard materials,Talc,Mineral fillers
End products
Bread rolls,Alumina ceramics,Wall paints,Ceramic glazes,Zirconia dental crowns,Ceramic tiles,White pigments for coatings,Bakery products,Talcum powder,Decorative ceramics
Steps before
Pre-crushing,Material feeding
Steps after
Screening,Classifying,Packaging
Input ingredients
mineral fillers,glazing raw materials,non-mineral hard materials,limestone,quartz,zircon sand,talc,ceramic colours,frits,titanium dioxide,feed material up to 100 µm,starch,wheat flour
Output ingredients
superfine products,mineral fillers with high whiteness,glazing raw materials,non-mineral hard materials,ultrafine comminution products,flour with increased water absorption capacity
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.

Technical Specifications


Dry media mill fineness
Approx. 80% <2 µm
Mill housing
Double-walled,water cooling
Circuit mode operation
With Turboplex ultrafine classifiers
Agitator peripheral speed
2.5 – 3 m/s
Automation
Motor-connected gear unit
Grinding beads size
Few millimetres
Feed material size
Not exceed 100 µm
Fineness values
Up to 90% < 2 µm
Capacity relative to machine size
Approx. 200 kW/m³ beads
Peripheral speed
Low
Energy utilisation
Optimum
Grinding media wear
Low
Operating costs
Low
Service life of lining
Extremely long
Maintenance costs
Low
Grinding aid
Added to prevent deposits
Grinding beads materials
Aluminium oxide or special-grade steel
Product coating
Possible during grinding
Grinding beads diameter
Between 2 mm and 5 mm
Cooling medium
Water and air
Temperature control
Below 50°C for flour

Operating Characteristics


Working mechanism
Vertical agitated media mill
Automation level
Manual / PLC
Batch vs. continuous operation
Circuit mode with classifier
CIP/SIP
N/A
Cleaning method
N/A
Cooling integration
Double-walled for water cooling
Grinding beads size
2 mm to 5 mm
Temperature control
Water cooling of the mill jacket

Material Compatibility


Abrasion resistance
High
Corrosive resistance
Yes,for non-acidic materials
Cleanability
High,suitable for sanitization
Density/particle size
0.5–2.5 g/cm³ / 50–1000 µm
Biological compatibility
Non-biological materials

Product type Characteristics


Abrasiveness of material
Yes/No
Heat sensitivity
Yes/No
Viscosity
Low/Medium/High
Foaming tendency
Yes/No
Container size and shape
Customizable
Material hardness
Soft/Hard/Very Hard
Grinding media wear
Low/Medium/High

Physical Characteristics


Machine footprint
Compact design
Discharge method
Discharge screw and screening machine
Grinding beads size
Few millimetres in diameter
Cooling method
Water cooling
Agitator speed
2.5 – 3 m/s

Custom Options


Cooling option
Water cooling
Material Options
Aluminium oxide,Steel
Agitator Arm Protection
Aluminium oxide tips,Hardfacing