High Energy Ball Mill E_max
the revolution in ultrafine grinding

High Energy Ball Mill Emax

(please order grinding jars and balls [up to 15 mm] separately)

20.510.0001

Emax, 200–240 V, 50/60 Hz, High energy ball mill with 2 grinding stations

Screw-Lock grinding jars Emax

Selection help

The Emax grinding jars are pressure tight up to 5 bar and suitable for dry and wet grinding. Thanks to the integrated safety closure, they safely enclose inert atmosphere, for example after the air in the jar was exchanged with inert gas through an aeration lid.

Screw-top grinding jars are dust- and air-tight which makes them suitable for dry, wet and cryogenic grinding. Moreover,

Always select a grinding jar size suitable for the sample volume (approx. 30% of the jar is filled with sample material). Grinding jars are provided in sizes ranging from 1.5 ml to 25 ml (not all sizes available in all materials).

The document “Grinding Jar Ball Charge” in the Downloads section provides details about usable volumes, maximum feed sizes and correct filling of the jars with grinding balls for dry and wet milling as well as cell disruption.

For efficient and contamination-free grinding processes the grinding jars are available in 4 different materials (no undesired abrasion).

The energy input increases with the density of a material. For pulverizing soft samples, materials with a low to medium density should be used, whereas for hard samples it is better to use high-density materials

Available materials:

• Stainless steel (density 7.7 g/cm³; hardness ≤ 245 HB, medium abrasion resistance)
  typically used for pulverizing medium-hard to hard and brittle samples. 
  
  
• Tungsten carbide (density 14.8 g/cm³; hardness 93.6 HRA; high abrasion resistance) 
  used for grinding very hard, brittle sample materials. By using tungsten carbide, contamination of the sample with iron is prevented.
  
  
• Zirconium oxide (density 6.05 g/cm³; hardness 1250 HV, high abrasion resistance) ceramic material suitable for pulverizing medium-hard to hard and fibrous samples. It is typically used for heavy-metal-free grinding processes or applications which aim at ultrafine particle sizes.

Stainless steel

01.462.0313

125 ml

Tungsten carbide

01.462.0317

50 ml

Zirconium oxide

01.462.0307

125 ml

Aeration lids for grinding jars Emax

incl. o-rings and sintered filter (please order lid and grinding jar separately)

Pressure and temperature measuring system GrindControl

incl. sensors and transmitter unit, case, opening aid and cleaning accessories for MM 500 control / nano / Emax
(please order insert of lid and grinding jar separately)

GrindControl lid inserts

Accessories for grinding jars Emax

22.864.0001

Valve set M8x1 for GrindControl and aeration lids

05.114.0057

O-ring for grinding jars 50 ml, 1 piece

05.114.0122

O-ring for grinding jars 125 ml, 1 piece

Grinding balls

Selection help

Grinding balls and grinding jars should always be selected from the same material.  Grinding balls are available in different diameters. The rule of thumb is: for efficient milling the ball should be at least 3 times larger than the largest particle in the sample. To avoid abrasion and wear it is essential to only use balls with identical diameter. The number of grinding balls depends on the jar volume used. The document “Grinding Jar Ball Charge” in the Downloads section provides details about usable volumes, maximum feed sizes and correct filling of the jars with grinding balls for dry and wet milling as well as cell disruption. For further information on materials please see the document “Material Analyses of Equipment & Accessories“ in the Downloads section.

Available materials:

• Stainless steel (density 7.7 g/cm³; hardness ≤ 245 HB, medium abrasion resistance)
  typically used for pulverizing medium-hard to hard and brittle samples. 
  
  
• Tungsten carbide (density 14.8 g/cm³; hardness 93.6 HRA; high abrasion resistance) 
  used for grinding very hard, brittle sample materials. By using tungsten carbide, contamination of the sample with iron is prevented.
  
  
• Zirconium oxide (density 6.05 g/cm³; hardness 1250 HV, high abrasion resistance) ceramic material suitable for pulverizing medium-hard to hard and fibrous samples. It is typically used for heavy-metal-free grinding processes or applications which aim at ultrafine particle sizes.

Stainless steel

22.455.0010

2 mm Ø, 500 g (approx. 110 ml)

22.455.0011

3 mm Ø, 500 g (approx. 120 ml)

22.455.0002

3 mm Ø, 200 pieces (approx. 6 ml)

22.455.0001

4 mm Ø, 200 pieces (approx. 14 ml)

22.455.0003

5 mm Ø, 200 pieces (approx. 25 ml)

05.368.0034

5 mm Ø

05.368.0035

7 mm Ø

05.368.0063

10 mm Ø

05.368.0037

12 mm Ø

05.368.0109

15 mm Ø

Tungsten carbide

22.455.0006

3 mm Ø, 200 pieces (approx. 6 ml)

22.455.0005

4 mm Ø, 200 pieces (approx. 14 ml)

22.455.0004

5 mm Ø, 200 pieces (approx. 25 ml)

05.368.0038

5 mm Ø

05.368.0039

7 mm Ø

05.368.0071

10 mm Ø

05.368.0041

12 mm Ø

05.368.0110

15 mm Ø

Zirconium oxide

32.368.0005

0.1 mm Ø, 0.5 kg (approx. 135 ml)

32.368.0003

0.5 mm Ø, 0.5 kg (approx. 135 ml)

32.368.0004

1 mm Ø, 0.5 kg (approx. 135 ml)

05.368.0089

2 mm Ø, 0.5 kg (approx. 135 ml)

05.368.0090

3 mm Ø, 0.5 kg (approx. 140 ml)

05.368.0094

10 mm Ø

05.368.0096

12 mm Ø

05.368.0113

15 mm Ø