Powder processing apparatus including a loading and unloading system

A method of using a powder processing apparatus, comprising a processing head configured to process a material and to be removably and functionally fixed to a driving unit via a fixation device extending between the driving unit and the processing head, the processing head being at a distance from a base when connected to the driving unit;

• the processing head comprising an inlet connecting unit configured to be connected to an input container containing the material to be processed, and an outlet connecting unit configured to be connected to an output container destined to receive the processed material;
• wherein the fixation device comprises a pivoting element configured to rotate the processing head around a pivoting axis by a rotation angle between a first angular position where the material contained in the input container can be inputted in the processing head and where the processed material can be outputted in the output container, and a second angular position where the input container being on the base can be connected to the inlet connecting unit, wherein the method comprises:
• pivoting the processing head in the second angular position;
• connecting an input container to the inlet connecting unit;
• pivoting the processing head with the attached input container in the first angular position;
• connecting an output container to the outlet connecting unit;
• and
• performing the powder processing operation and transferring the processed material from the processing head to the output container.