TC22 (Torque Cut 22) had a Dx32 PC based control. Had DC servo motors, and a Yaskawa spindle drive.
Had a assortment of spindle speeds, some had a 2 speed gearbox, some did not.
Brideport sold a lot of these.
These were replaced by the TC 2, 3, and 4 (for longer travels)
TC3 G, has a geared head. Never saw one with the Heidenhain control but the ones I installed had Yaskawa AC drives and spindle motor. The ones I installed had a DX32 control considered a CIB (control in a box) PC based control.
Support is there for Heidenhain and Yaskawa. Gearbox make by gear technique in the 608 area code.
Only installed a handful.