273A Heald Universal Internal Grinder, 12" Extended Base, Face Stop, Cross Sliding Workhead Non-Gib Type Slide
| Size Capacity | 12" | 12" |
273 A HEALD UNIVERSAL INTERNAL GRINDER
S/N G5595 Year:1979
STANDARD CATALOG SPECIFICATIONS
Maximum swing over table...................... 22
Swing work head swiveled...................... 90 degrees - 12
Swing inside standard chuck guard............. 18
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.....................11/2 HP, 1800RPM
Work head motor, 60 Cyclesa-c................1 1/2 HP, 1200RPM
Wheel head motor, 60 Cyclesa-c...............5 HP, 3600RPM
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
Heavy duty gib style cross slide to accommodate heavy parts.
Cross sliding work head.
Facing attachment.
Vari-speed work head.
Extended base.
Standard flange type work head.
Attached electrical.
20” Face plate.
Plunge feed / Table lock down.
Specifications are deemed accurate, however, subject to verification or prior sale.
