Working

In case of continuously operated Ball mill, the material to be ground is fed from the left through a 60° cone and the product is discharged through a 30° cone to the right. As the shell rotates, the balls are lifted up on the rising side of the shell and then they cascade down from near the top of the shell. In doing so, the solid particles in between the balls and ground are reduced in size by impact.

Applications

For grinding materials such as feldspar, coal, pottery and pigments the retsch Planetary Ball mill is used. Although, the wet option is performed at low speed, grinding can be carried out either wet or dry. An example of an application for rubber balls is blending of explosives. In increasing solid-state chemical reactivity ball milling for systems with multiple components, has been shown to be effective. Additionally, for production of amorphous materials ball milling has been shown effective.

Advantages of the ball mill

Over other systems ball milling boasts several advantages: for both batch and continuous operation it is suitable; the cost of installation and grinding medium is low; for open as well as closed circuit grinding it is suitable as well; for materials of all degrees of hardness it is applicable.

Wherever the highest degree of fineness is required Planetary Ball Mills are used. These mills also meet all technical requirements for colloidal grinding in addition to well-proven mixing and size reduction processes. Necessary for mechanical alloying they also provide the energy input. Very high pulverization energy and therefore short grinding times is the result of the extremely high centrifugal forces of a Fritsch planetary ball mill.

The PM 100 is a convenient benchtop model with 1 grinding station

An entirely new type of mill for high energy input, you may also be interested in the High Energy Ball Mill Emax. Extremely fine particles within the shortest amount of time are the result of the unique combination of high friction and impact.

Application Examples

Alloys, bentonite, bones, carbon fibres, catalysts, cellulose, cement clinker, ceramics, charcoal, chemical products, clay minerals, coal, coke, compost, concrete, electronic scrap, fibres, glass, gypsum, hair, hydroxyapatite, iron ore, kaolin, limestone, etc.