This Gebring finishing hone system was manufactured in 1970s.
It went through complete overhaul in 2004 by Gebring in Germany.
Siemens CNC Controls were added at this time.
Stroke 19’
Diameter from 2.875” to max 15-17”
Motor Power 20-25 hp

Range of speeds adjusted manually and electronically.
Stones are adjusted with hydraulic cylinder electronically or manually to get a bit more out of it
feed can be adjusted from main computer.
This is finishing hone, which can polish up a surface pretty good, to 0.005 t if someone gets really creative and good at operating it.
There are whole bunch of stones and heads coming with this machine.