The HSB-beta®-ARS-ASS versions are often used with a vertical axis. The carriage and drive are upright and the profile tube runs vertically. The gripper/attachments often also need to rotate.
This can be implemented very simply with the HSB rotary feedthroughs.
A top and bottom-mounted tube is fed through the rear cavity of the profile. A servo motor is attached at the top by a timing belt drive while the gripper or attachment can be attached to the adapter plate on the bottom.