Heald 273A UNIVERSAL I.D. GRINDER WITH 12" EXT. BASE

273A HEALD UNIVERSAL I.D. GRINDER WITH 12\" EXT. BASE
Year: 1970


STANDARD CATALOG SPECIFICATIONS
Maximum swing inside table way guard, using special chuck
guard with limited table travel and swivel
Limited swivel..................................... 28"
Swing work head swiveled to 90 degrees............. 13"
Swing inside standard chuck guard.................. 20"
Angular adjustment of work head.................... 90 degrees
Work positioning slide travel...................... 17 1/2"
Maximum table travel............................... 20"
Grinding stroke, maximum...................... 18" w/ ext bridge
Wheel head cross slide travel...................... 1 1/2"
Center of work head spindle to floor............... 43 1/2"
Distance work head flange to edge of wheel slide... 0 41 1/16"

SPEEDS
Table speeds for grinding.......................... 0 18 FPM
Work head speeds reversible & variable between..... 0 500 FPM
Rapid traverse table............................... 18 FPM
One turn of cross feed hand wheel on dia........... .050"
Cross feed in increments at one or both ends
of table stroke, adjustable......... .0001" .0005" on dia.
Minimum stroke..................................... .125"

EQUIPMENT & FEATURES
Red Head grinding spindle.
** Extra spindles at different RPM\'s are available at
additional cost.
12” 3 Jaw Scroll chuck.
Single point manual dresser.
12" Extended base.
Cross sliding work head.
Variable speed work head 0 500 Infinite.
90 Degree swivel on work head.
Sine bar.
Forward and reversing work head.
Facing stop.
Dro on table traverse.