Planetary Ball Mill (50 ml - 500 ml)

Planetary Ball Mills consist of several cylindrical grinding jars positioned on the sun wheel which are filled with loose grinding balls. Two superimposed rotational movements move the grinding jars.
Like in a planetary system the grinding jar rotates on an orbit around the centre. This rotational movement is the self-rotation of the grinding container superimposed. The resulting centrifugal and acting acceleration forces lead to strong grinding effects.
Depending on the speed ratio different movement patterns of the grinding balls / media can be achieved. It can be achieved that the grinding media are crossing the grinding jar and loosen from the wall.
At hitting the wall of the grinding jar the sample will be stressed. At a different motion pattern the grinding balls roll over the sample and stress the ground material.

Application :

• The laboratory planetary ball mill is universally applicable for quick dry or wet grinding of inorganic and organic samples for analysis, quality control, materials testing and mechanical alloying.
  In synthesis, the can be used for mixing and homogenization of dry samples, of emulsions and of pastes.

Working principle :

• Impact, friction

Feed size maximum :

• < 10 mm

Number of grinding jars :

• 4 / 3 / 2 / 1

Maximum volume of each grinding jar :

• 500 ml

Minimum volume of each grinding jar :

• 50 ml

Maximum end fineness :

• < 1 m; < 0.1 °m for colloidal grinding

Adjustment of grinding duration :

• Digital adjustable

Setting of grinding time :

• Digital, 00:00 to 99:59

Interval operation :

• Yes, with direction reversal

Pause time :

• 00:00 to 99:59

Speed ratio :

• 1 : -2

Sun wheel speed :

• 50 - 650 min

Effective sun wheel diameter :

• 360 mm

Dimensions :

• 837(W) × 518(D) × 536(H) mm

• High efficient fine grinding up to end fineness <1 °m
• Different speed ratios available
• Grinding jars from 50 ml to 500 ml in different materials
• Suitable for long-term trials and continuous use
• Automatic direction reversal to avoid agglomerations
• Reproducible results due to programmable grinding parameters