200 ipm? You might need more spindle rpm. With Cat 45 tooling the spindle bearings are big enough to fill a lunch box. 4000 rpm is the norm for max rpm....
With a 4 flute, at 4000 rpm that's a chip load of .0125" per tooth... The machine migh not mind, but the tooling <might> notice.
On the B&S the rapids were 400 ipm, and feeds were up 100+ ipm, if you had tooling and cutting to match...
Also consider an old Cincinatti.
The hydraulics on those old machine were really something! Buy O-rings by the 100's and learn to rebuild seals, pistons, and couplers, and valves.
The tool changer on the B&S was amazing, about 3000 lbs worth. Those tools went up, down, sideways, and flipped, just to get to the changer arm. Sure worked nice and smooth though, once I adjusted it all to new specs.
The tool changer was contolled by a drum cam, with about a dozen hydraulic valves along the drum for all the cylenders and actuators for the tool change.
Pete |