All rotary feeders in this series already comply with the new Machinery Directive 2000/42 / EC that has been in force since December 29, 2009. In the risk assessment required therein, the microbiological, physical and chemical requirements were also taken into account. The GMP / FDA requirements and DIN EN 1672-2 are met with measures such as product-contact (inside) ground, surface quality according to the desired Ra value, all welds free of gaps, optionally electropolished, free of dead spaces.