This machine is ideal for grinding samples for moisture determination with the HE 60 / HE 90 moisture meters. A sample (20 ml) is added. When the dosing handle is turned, the product is lowered into the grinding chamber. The product is ground between the stationary and rotating metal pin ring (by means of the impact effect). The ground material falls through the outlet connection directly into the bottom of the measuring cell of the HE 60 / HE 90 moisture meter.