Cincinnati, Heald 273A

Maximum swing over table extension, workhead parallel to table: 32.5 in
Swing workhead swiveled ±90°: 24 in
Swing inside standard chuck guard: 28 in
Angular adjustment of workhead: 90°
Workhead positioning slide travel: 17.5 in
Maximum table travel: 20 in
Maximum grinding stroke: 16 in
Wheelhead cross slide travel: 1.5 in
Center of workhead spindle to floor: 43.5 in
Distance workhead flange to edge wheelslide: 0 to 29.0625 in
Table speeds for grinding: 0 to 18 FPM
Workhead speeds, reversible and variable: 0 to 500 RPM
Rapid traverse of table: 18 FPM
One turn of cross feed handwheel: 0.050 in on diameter
Cross feed in increments: 0.0001 to 0.0005 in on diameter
Minimum stroke: 0.125 in
One turn of workslide handwheel: 0.100 in
One turn of table handwheel: 3.75 in
Machine weight: 8,500 lbs
Floor space (machine only): 84 x 38 in
Factory risers providing for 32.5 in swing
Extended base factory option, 12 in extra clearance
Hydrostatic table ways
Feed box combines automatic and manual control for coarse and fine feed
Wheelhead motor: 5 HP
C-M Heald "Red Head" ID grinding spindle unit, max speed: 8,200 RPM
Large T-slotted face plate on workhead
Magnetic chuck on workhead
Facing attachment
Sine bar for precision setting of workhead swivel with dial indicator
Multi-position stop for workhead slide positioning with dial indicator
Drop down factory dresser
Coolant tank with "Gusher" pump: 65 x 16 x 15 in
Electrical: 3/60/480 volts, 13 amps required