273A Heald Universal Internal Grinder, 12" Extended Base, 4" Risers, Face Stop
| Size Capacity | 20" | 20" |
273A HEALD UNIVERSAL INTERNAL GRINDER
S/N G-2675 Year: 1969
STANDARD CATALOG SPECIFICATIONS
Maximum swing over table...................... 24 1/2"
Swing work head swiveled...................... 90 degrees 12"
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.
12" Extended bed.
Specifications are deemed accurate, however, subject to verification or prior sale.
