Cincinnati, Heald 273A

Swing over table extension 24.5 in
Swing with workhead swiveled ±90° 16 in
Swing inside chuck guard 20 in
Workhead angular adjustment 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 wheel slide 0–29.06 in
Table speed for grinding 0–18 ft/min
Workhead speed 0–500 RPM
Rapid traverse of table 18 ft/min
Minimum stroke 0.125 in

Hydrostatic table ways
Automatic and manual feed box
Facing attachment
Sine bar for workhead swivel
Multi-position cross movement stop
Drop-down wheel dresser
Coolant tank with pump

Wheelhead motor power 5 HP
Workhead motor power 1.5 HP
Variable speed workhead drive
I.D. spindle speed 14,000 RPM

Magnetic chuck diameter 12 in

Machine floor space 84 in x 38 in
Machine weight 7,500 lb