Heald 271 SIZEMATIC INTERNAL GRINDER

271 HEALD SIZEMATIC INTERNAL GRINDER
Year: 1952


CAPACITY:
Swing over table diameter (straight work)............... 30"
Swing inside standard guard............................. 28
Maximum length of hole.................................. 5"
Maximum diameter of hole................................ 5 1/2"
Minimum diameter of hole................................ 1/8"
Maximum included angle, degrees......................... 60
Diameter of workhead spindle flange..................... 9 5/8"
Table travel............................................ 16"
Capacity of oil tank, gallons........................... 15

SPEEDS & FEEDS
Workhead speeds.......................... 400, 266, 200, 133 RPM
One turn of crossfeed handwheel............... .060 on diameter
Wheel wear compensation on diameter........... 0 to .004"
Maximum power crossfeed....................... .042 on diameter

DRIVE
Workhead motor, standard voltages, 60 cycles
........... 1 1/2, 1, 3/4, 1/2 HP, 1800, 1200, 900, 600 RPM
Oil pump motor................................ 2 HP, 1800 RPM
Wheelhead motor............................... 5 HP, 3600 RPM

GENERAL DATA
Floor space............................................. 93" x 85"

EQUIPPED WITH
Sizematic feed box
Single point diamond dresser hydraulic
All trip dogs
Coolant pump and tank
Red Head grinding spindle your choice of RPM