Fellows special gear shaper Model 36-8 Z-1 s/n 35171 w/ 28" throated riser w/ 56" swing diameter this machine is the special 8" stroke Z style machine with a large whole in the spindle for shafts or tall parts. it has a special throated 28" riser allowing a swing of almost 56" diameter in the throat!! Machine Specifications are as follows: Maximum swing diameter in throat.........................................56" Maximum Diameter capacity................................................40" Maximum stroke capacity...................................................8" Maximum Height above Table...............................................31" Maximum part swing Diameter..............................................42" Diameter of table........................................................36" Bore in the table........................................................12" Depth of bore in the table................................? Need to confirm  Machine Voltage.......................................................480 v Height of Machine.....................................................11' 4" Weight of machine.................................................21,000 lbs Machine is equipped with the following: Large Bore in the work spindle (12" diameter) Cutter Elevation Option 5" Heavy duty spindle 28" high riser assembly allowing 33" clearance height & 56" swing Extended cutter housing for 8" stroke Extended 6" Cutter adaptor w/ 4" diameter air Table assist  Misc change Gears Misc tooling This machine was specially Designed by fellows for large hubs with internal gearing down deep within the part. The large bore in the table feature allows for dropping large parts down through the table and be able to swing around under the spindle and be able to cut both internal or external gears or splines on a variety of parts that are usually tough to MFG on standard fellows equipment. This machine shows no internal wear and has been extremely well maintained coming from a high quality aerospace facility!! contact us today to set up an under power inspection at your earliest convenience. Also visit our Website for more of our featured inventory selections at www.PiselliEnt.com