3 (triple) stack, NEMA 23 steppers

[Wm McNett]

Or is that tripple? Do a Google for "tripple stack steppers" and you'll find triple (3) stack steppers.

If a Hybrid 1/2 stack, NEMA 23 frame stepper is rated a 50 oz/in Unipolar and 2 stack steppers are very close to 200 oz/in Unipolar.
Wouldn't make sense that a 3 stack would be capable of 300 oz/in Unipolar? (420 oz/in Bipolar)
I've found very few companies that list 3 stack, Nema 23 steppers.

There is one with specs that I have found on the net.
anaheimautomation.com
Lists 320 oz/in unipolar steppers
I've received 2 different prices from the same guy for the same motor (23Y306D-LW8): 1st price $137.00, 2nd price $72.00
But he keeps mentioning 300 oz-in with a Bipolar driver.

Does anyone know of any more companies or people that have 3 stack, NEMA23 steppers for sale?

Thanks,
Bill

[ger21]

These are the highest torque Nema23 motors I've seen.
Vexta PV269-02AA
http://www2.catalognavigator.com/ori...=spec&filter=0

The picture on the page is not the exact motor. See "more specifications" on the right for more info.

[KaptainKarst]

These "triple stack" NEMA 23's have unipolar rating of 320 oz/in.
http://www.anaheimautomation.com/lseries23.htm