| Swing | 19.8" | 502.92 mm |
| Max Grinding Bore | 14" | 355.6 mm |
| Stroke | 15.9" | 403.86 mm |
| Travel-Long | 20" | 508 mm |
| Workhead Swivel | 90 | 90 |
| Workhead Power | 1.5 hp | 1.1 kW |
| Wheel Power | 5 hp | 3.7 kW |
| Workhead Speed | 0 RPM | 0 RPM |
| Dresser | Yes | Yes |
Heald 273A Universal Internal Grinder
Maximum Swing Over Table Extension…………24-1/2″
(Workhead parallel to table without chuck guard,
permits no workslide travel, and limits table travel)
Swing w/Workhead Swiveled +/-90 Degrees…………16″
Swing Inside Standard Chuck Guard…………20″
Angular Adjustment of Workhead…………90 Degrees
Workhead Positioning Slide Travel…………17-1/2″
Table Travel – Maximum…………20″
Grinding Stroke – Maximum…………16″
Wheelhead Cross Slide Travel…………1-1/2″
Center of Workhead Spindle to Floor Distance…………0 – 29-1/16″
(Workhead Flange to Edge Wheelslide)
Table Speeds for Grinding …………0 – 18 FPM
Workhead Speeds – Reversible & Variable…………0 – 500 RPM
Rapid Traverse of Table…………18 FPM
One Turn of Cross Feed Handwheel…………0.050″ on Diameter
Cross Feed Increments…………0.0001″ – 0.0005″ on Diameter
(One or Both Ends of Table Stroke)
Stroke – Minimum…………0.125″
One Turn of Workslide Handwheel…………0.100″
One Turn of Table Handwheel…………3-3/4″
Wheelhead Motor…………5 HP
Electrics…………480V / 3 Phase / 60Hz
Approximate Dimensions…………96″(L-R) x 64″(F-B) x 75″(H)
Approximate Weight…………7,500 Lbs.
