Fritsch has launched the Pulverisette 9, a vibrating cup mill said to be ideal for all areas in which hard, brittle and fibrous materials must be ground extremely quickly down to analytical fineness.
The mill has a frequency transformer control also developed by the company.
The Pulverisette 9 is said to be suitable for fast sample preparation, such as in the areas of spectroscopy preparation, ore and geology laboratories, mining and metallurgy, ceramics industry, agriculture and environmental science, infrared and X-ray fluorescence analysis.
The mill is said to offer users convenient operation.
According to Fritsch, the working position is ergonomically optimised and the mill is easy to clean.
The grinding set is placed on a practical carriage, allowing it to be easily moved to the final position and rapidly fastened with a quick clamping system.
A special detector automatically detects when users use an agate or zirconium oxide grinding set for metal-free grinding and reduces the rotational speed independently.
A symmetrical eccentric developed by Fritsch ensures fast and safe clamping of the grinding set, which is also automatically monitored.
The defined final position and an integrated anti-twist protection provide additional safety.
In the vibrating cup mill, the grinding is performed by horizontal circular oscillations of the grinding set on a vibrating plate.
The grinding set consisting of rings and puck comminute the grinding sample with high pressure, impact forces and friction.
In this form of grinding, the transmission of forces onto the grinding sample is much more important than the pure motor power.
For this reason, Fritsch developed a special motor with frequency transformer control for the Pulverisette 9.
This makes it possible to adapt the motor speed to the respective load on the vibrating plate, ensuring optimal comminution.
Alternatively, fixed speeds can be selected.
The grinding parameters can also be configured for absolute reproducibility.
