Heald 272 PLAIN INTERNAL GRINDER

272 HEALD PLAIN INTERNAL GRINDER
Year: 1954


STANDARD CATALOG SPECIFICATIONS
Swing inside standard guard........................ 18"
Maximum length of hole............................. 12"
Maximum diameter of hole........................... 5 1/2"
Minimum diameter of hole........................... 1/8"
Maximum included angle (size matic only)........... 60 degrees
Center of chuck spindle from floor................. 42"
Diameter of work head spindle flange............... 9 5/8"
Table travel....................................... 30 1/4"
Capacity of oil tank............................... 15 gallons
Capacity of coolant tank........................... 55 gallons

SPEEDS & FEEDS
Table speeds: Rapid traverse...................... 35 FPM
Grinding............................ 0 20 FPM
Work head speeds..................... 400, 266, 200, 133 FPM
One turn of cross feed hand wheel.................. .060" on dia.
Wheel wear compensation on dia..................... 0 to .004"
Maximum power cross feed........................... .042" on dia.

DRIVE
Work head motor, standard 60 Cycles a c........ 1 1/2 1 3/4 1/2 HP
..................................... 1800, 1200, 900, 600 RPM
Oil pump motor....................... 2 HP, 1800 RPM
Wheel head motor..................... 5 HP, 3600 RPM
Coolant pump motor................... 1/2 HP, 1800 RPM

GENERAL DATA
Floor space without coolant tank................... 123" x 74"
Net weight of machine (approximate)................ 7,600 lbs.
Gross weight, crated (approximate)................. 8,700 lbs.
Gross weight, boxed (approximate).................. 9,500 lbs.

EQUIPMENT & FEATURES
Plain feed box.
Single point diamond dresser.
Facing stop.
Cross sliding work head.
Attached electrical.