Chromatography column and method of conducting maintenance on a chromatography column

A chromatography column comprising:

• a tubular housing having a cylindrical side wall, a first end, and a second end that is opposite the first end;
• a first end unit removably connected to the first end;
• a second end unit removably connected to the second end;
• an adaptor assembly movable within said tubular housing along the cylindrical side wall and removable through the second end of the tubular housing;
• an adaptor rod connected to said adaptor assembly, and arranged to extend through an opening in the first end unit;
• a filter removably connected to the adaptor assembly;
• and
• a frame that comprises two legs, which are connected to the side wall of said tubular housing for supporting the column on a floor with at least one hydraulic cylinder arranged in each leg of the frame as an actuator, so that the tubular housing can be lifted and lowered in a substantially vertical direction to respectively disconnect thus expose or connect thus engage the second end unit, and
• a trolley having a support surface for the second end unit to rest on when the column is lifted substantially vertically so that the second end unit is separated from the tubular housing of the column, wherein the trolley can be removed together with the second end unit from the frame,
• wherein, when the second end unit is released and removed from the trolley, the adaptor assembly can be lowered to a second lowered adaptor position via the adaptor rod, such that the adaptor assembly rests on the support surface of the trolley and access to the area above the adaptor is possible and the filter is exposed through the second end of the tubular housing.