Looking for HSK 80 E or A spindle speeder

As the title says.
Seems like air spindles are available in HSK 80, but im wanting the torque of a speeder for our five axis grinding machine ;)
Cant seem to track down an old school speeder. Figure it will save some time.
Or would we be better off with an air spindle in the long run. Would be nice to be able to use collets up to .5"

Thanks

Stu