Retsch Emax High Energy Ball Mill


Emax High Energy Ball Mill

The Emax is an entirely new type of ball mill for high energy milling. The unique combination of high friction and impact results in extremely fine particles within the shortest amount of time.   
The high energy input is a result of an unrivaled speed of 2000 min-1 and the optimized jar design. Thanks to the revolutionary cooling system with water, the high energy input is effectively used for the grinding process without overheating the sample. Due to the special grinding jar geometry, the sample is thoroughly mixed which results in a narrow particle size distribution.   
Unlike other high energy ball mills, the Emax is capable of continuous grinding operation without interruptions for cooling down. This dramatically reduces the grinding time. The high energy input in combination with the unique cooling system provides perfect conditions for effective mechanical alloying or grinding down to the nanometer range.   
A wealth of safety features such as the integrated safety closure of the grinding jar, temperature control with automatic start/stop system, and integrated imbalance controls make operation of the bench-top mill Emax very user-friendly.
Emax High Energy Ball Mill
Depth 645 mm
Height 525 mm
Width 625 mm
Weight 120 kg
Additional Specifications Applications            
size reduction, homogenization, nano grinding, mechanical alloying, colloidal grinding           
Material feed size           
<5 mm           
Final fineness           
<80 nm           
Batch size / feed quantity           
max. 2 x 45 ml (two grinding stations)           
Grinding jar sizes            
50 ml / 125 ml           
300 – 2,000 min-1           
controlled integrated water cooling system / option: external chiller           
Type of grinding jars            
with integrated safety closure devices, optional aeration covers           
Material of grinding tools            
stainless steel, tungsten carbide, zirconium oxide           
Storable SOPs            


  • Faster and finer grinding than with any other ball mill           
  • Speed of up to 2000 min-1 provides ultra-fast pulverization of the sample           
  • Innovative water cooling permits continuous operation without cool down breaks           
  • Narrow particle size distribution thanks to special jar design which improves mixing of the sample           
  • Jars with integrated safety closure           
  • Easy operation via touch screen, memory for 10 SOPs           
  • Range of jar materials ensures contamination free grinding
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