P-5
High-energy grinding to less than 1 μm for large sample quantities
The P-5 planetary mill, available with either four or two grinding stations, enables fast and loss-free grinding down to colloidal fineness. Due to the particularly high energy input of the grinding balls, the unit is ideal for hard, medium-hard, soft, brittle, tough, and moist materials. Depending on the desired final fineness, grinding can be performed dry, in suspension, or under an inert gas atmosphere. In addition to grinding, the planetary mill can also be used for mixing and homogenizing emulsions and pastes, as well as for mechanical activation and alloying in materials research.
Grinding Based on the Planetary Principle
The grinding jars, containing the material to be ground and the grinding balls, rotate on a rotating main disc and additionally rotate in opposite directions around their own axes. Above a certain speed, centrifugal force causes the material to be ground and the grinding balls to detach from the inner wall of the grinding jar. The grinding balls traverse the beaker diagonally at maximum speed and grind the material both by shattering it against the opposite beaker wall and through the balls colliding with one another. With main disc rotational speeds of up to 400 rpm, the P-5 classic line achieves a centrifugal acceleration of up to 22 g.
Precise and Reproducible Results
The fixed gear ratio of 1 : -2.19, speed control, and quartz-accurate timing ensure precisely reproducible grinding results. The Safe-Lock system allows for easy and secure clamping of the grinding jars using the supplied torque wrench. The microprocessor-controlled speed is displayed digitally on the membrane keypad. Programmable grinding and pause times, as well as grinding cycles—adjustable to the nearest second for short-term operation—offer maximum flexibility.
Versatile Applications
With a capacity of up to four times 225 ml, the planetary mill is particularly suitable for large sample volumes. Up to eight samples can be processed simultaneously. The mill operates with grinding jars in sizes of 500 ml, 250 ml, 80 ml, 45 ml, or 12 ml. Grinding jars and grinding beads are available in six different materials, allowing for the targeted prevention of sample contamination due to unwanted abrasion. Gas-flushing lids are available for grinding under an inert gas atmosphere, as well as for mechanical activation and alloying.
The optional EASY GTM gas pressure and temperature measurement system transforms the planetary mill into an analytical measurement system for advanced applications in mechanochemistry and materials research.
Note: This article has been automatically translated. LUMITOS offers this service to make product information available in more languages. As this article was created automatically, errors and deviations from the original are possible. The original presentation in German can be found here.