Heald 274 Universal Internal Grinder

Swing over table: 30" diameter
Swing over work head slide (90°): 20" diameter
Swing inside chuck guard: 18" diameter
Angular adjustment of work head: up to 90°
Work head cross slide travel: front 6" max / rear 15" max
Max length of hole ground: 14"
Max diameter of hole ground: 21.75"
Table travel: 30.25"
Max work/fixture thickness (with head swiveled, 3-wheel setup): 15"
Chuck spindle center height from floor: 48"
Spindle flange diameter: 9.625"
Distance from spindle face to swivel point: 4.125"

Work head speed: 40–350 RPM
Table speed (grinding): 0–15 FPM
Table rapid traverse: 35 FPM

Pump motor: 2 HP, 1800 RPM
Work head motor: 0.75 HP, 1750 RPM
Wheel head motor: 5 HP, 3600 RPM
Coolant pump motor: 0.5 HP, 1800 RPM

Oil tank capacity: 15 gal
Coolant tank capacity: 55 gal
Base footprint: 78.25" × 28.125"
Floor space required: 123" × 101"
Machine weight: 8850 lbs

12" magnetic chuck
Red head spindle
Cross sliding work head
Swivel work head
Plain feed box
Hand or hydraulic table traverse
Face stop
Single point dresser
Electrical controls included
Variable speed work head