Heald 271

271 HEALD SIZEMATIC BORE & FACE INTERNAL GRINDER
Remanufactured 2002




Swing over table diameter (straight work).............. 22"
Swing inside standard guard............................ 14"
Maximum length of hole................................. 5"
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..................... 43 1/2"
Diameter of workhead spindle flange.................... 9 5/8"
Table travel........................................... 16"
Capacity of oil tank................................... 15 gallons
Capacity of coolant tank............................... 55 gallons


SPEEDS & FEEDS
Table speed, rapid traverse............................ 35 FPM
Table Sseed, grinding.................................. 0-20 FPM
Workhead speeds.......................... 400, 266, 200, 133 RPM
One turn of cross feed handwheel................... .060 on dia.
Wheel wear compensation on diameter.................... 0 to .004
Maximum power cross feed........................... .042 on dia.

DRIVE
Workhead motor, standard voltages, 60 Cycles a-c, infinite variable speed
Oil pump motor................................ 2 HP, 1800 RPM
Wheelhead motor............................... 5 HP, 3600 RPM
Coolant pump motor............................ 1/2 HP, 1800 RPM

GENERAL DATA
Floor space with or without coolant tank............... 93" x 85"
Weight of machine, net, approximate.................... 7,400 lbs.
Gross weight, crated, approximate...................... 8,400 lbs.
Gross weight, boxed, approximate....................... 9,400 lbs.

EQUIPMENT & FEATURES
Red Head spindle
Slide bar facing motorized spindle
Reliance SP 500 variable drive work head
Coolant pump & tank
Single point diamond dresser
Spark-out timers
Facing dresser mounted on guard
440 Volts, 3 Phase, 60 Cycle
Hydraulic cross sliding work head for quick position
New electrical panel with Allen Bradley SLC 500 Controller