Heald 271 SIZE‑MATIC INTERNAL GRINDER

271 HEALD SIZE‑MATIC INTERNAL GRINDER
Year: 1963



STANDARD CATALOG SPECIFICATIONS
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 (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 speed, grinding.................................. 0 ‑ 20 FPM
Workhead speeds.......................... 400, 266, 200, 133 RPM
One turn of cross feed handwheel.............. .060" on diameter
Wheel wear compensation on dia......................... 0 to .004"
Maximum power cross feed...................... .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
Coolant pump motor............................ 1/2 HP ‑ 1800 RPM


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

EQUIPMENT & FEATURES
Red Head Heald spindle - Will supply your R.P.M.
Electric single point diamond dresser
Variable speed workhead 0 ‑ 500
4 Position positive stop
All trip dogs
Coolant tank & pump
Rough and finish timers