DRAG 
DRAG 
Quick access to essential system features, including the dashboard for an overview of operations, network settings for managing connectivity, system logs for tracking activities.
The LAARMANN® Planetary Ball Mills are used for fine grinding of soft, hard, brittle, or fibrous materials. Both dry and wet grinding options are supported, making them ideal for daily sample preparation in laboratories and development environments.
LAARMANN® Planetary Ball Mills consist of several cylindrical grinding jars mounted on a sun wheel. These jars are filled with grinding balls and rotate around their own axis as well as around the central sun wheel—similar to a planetary system.
This dual movement generates strong centrifugal and Coriolis forces, resulting in an intense grinding effect between the balls and the sample material. Depending on the speed ratio, various movement patterns are achieved, including impact and rolling, enabling fine and efficient milling.
LAARMANN® Planetary Ball Mills are designed for user-friendly operation with programmable settings for speed, rotation reversal, and grinding time. The integrated safety system ensures the machine only runs when securely closed and immediately stops if opened during operation.
The correct selection of grinding jar material and the appropriate filling level are crucial for achieving optimal grinding results. Based on your application, select the right jar material and suitable amount of grinding balls.
For best results, the jar should be filled approximately one-third with sample material, one-third with grinding balls, and the remaining third left empty to allow movement of the balls during milling.
Will our equipment suit your requirements? Send us a test sample for evaluation. Our application laboratory is pleased to conduct pre-purchase trials on customer free supplied samples.
If you require a test-grinding please click the Questionnaire Milling button and fill out the form.
| Adjustment of grinding duration | digit adjustable |
| Dimenstions closed W x D x H | ca. 1090 x 660 x 1400 mm |
| Effective sun wheel diameter | 360 mm |
| Sun wheel speed | 50 – 400 min-1 |
| Electrical requirements | 200-240 Volt 50/60 Hz |
| Feed size maximum | 10 mm |
| Max end-fineness | 1μm; 0,1μm for colloidal grinding |
| Number of grinding jars | 4/8 |
| Max volume of each grinding jar | 500 ml |
| Min volume of each grinding jar | 10 ml |
| Motor Power | 1500 Watt |
| Speed ratio | 1:-2; 1:-2.5; 1:-3 |
| Weight | 158 Kg (only machine) |