272 HEALD PLAIN INTERNAL GRINDER

272 HEALD PLAIN INTERNAL GRINDER

PRIVATE S/N 35417Year: 1955tc�\l 1 S/N 37194��� Year\:1958

STANDARD CATALOG SPECIFICATIONS
Swing inside standard guard........................20
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.
Sine Bar.
Attached electrical.

Specifications are deemed accurate, however, subject to verification or prior sale.