type-J coil planet centrifuge

https://doi.org/10.1351/goldbook.09950

Centrifuge that provides type-J synchronous planetary motion to the column holder, the axis of which is parallel to the centrifuge axis (see figure in high-speed counter-current chromatography).

Source:
PAC, 2017, 90, 181. 'Terminology of separation methods (IUPAC Recommendations 2017)' on page 205 (https://doi.org/10.1515/pac-2017-0111)