I was expecting to provide separate circuits to each
of the static machines in the workshop. So there
won't be any ring to worry about. The workshop
sockets ring will be protected by an RCBO.

I would say that a fixed 2.2kW motor appliance with total inrush current of
22A will be fine on a 16A Type B MCB, which won't instantaneous trip until
at least 48A. Obviously if it takes an age to spin up then it could blow the
thermal curve, although at only 6A over the 16A rating, this is unlikely.

Christian.