Equipped With

273A HEALD UNIVERSAL INTERNAL GRINDER 

New 1970

SPECIFICATIONS
Maximum swing over table...................... 22"
Swing work head swiveled...................... 90 degrees - 13"
Swing inside standard chuck guard............. 21"
Angular adjustment of work head............... 90 degrees
Work head cross slide travel.................. 17 1/2" Maximum table travel.......................... 20"
Grinding stroke maximum....................... 16”
Wheel head cross slide travel................. 1 1/2"
Center of work head spindle to floor.......... 43 1/2"
Diameter of work head spindle flange.......... 9 5/8"

SPEEDS & FEEDS
Table speed for grinding...................... 0-18 FPM
Work head speeds- Variable Rapid traverse of table....................... 18 FPM
One turn of cross feed hand wheel............. .050 on dia.
Cross feed in increments: (adj.)
At 1 or both ends of table stroke........ .0001"-.0005" on dia.
Minimum stroke................................ .125"
One turn of work slide hand wheel............. .100"
*One turn of table hand wheel................. 3 3/4"
DRIVE Pump motor, 60 Cycles a-c..................... 1 1/2 HP, 1800 RPM
Work head motor, 60 Cycles a-c................ 1 1/2 HP, 1200 RPM
Wheel head motor, 60 Cycles a-c............... 5 HP, 3600 RPM

GENERAL
Capacity of oil tank.......................... 11 gallons
Length & width of base on floor............... 73 3/4" x 37 7/8"
Net weight (approximately).................... 10,000 lbs. 

EQUIPMENT & FEATURES
Cross sliding work head.
Vari-speed work head.
Single point manual dresser.
Face stop.
Attached electrical panel.
12” Extended base.
Coolant tank & pump.
Manual or power table.
Redhead spindle.
2 Axis Sony DRO.
Forward & reversing workhead.
2” Riser on workhead.