Need specs for SIGMA 20-2223D200-C23 stepper motor

[Grim Reaper]

I've got a SIGMA 20-2223D200-C23 stepper motor (made Nov. 6, 1981) but don't know its voltage and current specs. I've searched all over the internet and only found info about its use in a CERN particle accelerator, other equipment, 2 for sale on ebay, but no specs. If you know the specs, or SIGMA's numbering system from which I can derive the specs, would you please post them here.

[Bachward Child]

Me too man, I've got a Sigma Instruments 20-3450D200-E05.
Its a brute of a thing, NEMA 34 at 5" long. 6 wire.

No data ANYWHERE about Sigma Instruments motors, they were bought by Pac Sci I think.

In the name of mine I think the 200 is steps/rev, the 3450 is either NEMA34 x5" long or NEMA34 at 5A/Phase.
Or possibly the E05 at the end is current. Either way its big enough to be a 5A motor.

Yours MAY be NEMA22 x2.3" long at 2.3A/phase (or the other way round - measure its length), seems like a similar naming system to MAE and their HY200 types.

Nobody found an old Sigma catalogue anywhere?