Heald SIZEMATIC INTERNAL GRINDER 271

HEALD SIZEMATIC INTERNAL GRINDER
271


CAPACITY
Swing over table diameter (straight work)............... 18"
Swing inside standard guard............................. 12"
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
4 Speed work head
All trip dogs
Coolant pump & tank
Red Head grinding spindle