HEALD #271 Internal Grinder, remanufactured in 2005. Offers 5 1/2" max hole diameter, a 22" swing over table, and includes features like a Red Head spindle and coolant tank. Perfect for precise bore and face grinding tasks.
| Swing | 22" | 558.8 mm |
| Size Capacity | 5 1/2" | 5 1/2" |
| Max Grinding Bore | 5.5" | 139.7 mm |
| Stroke | 5" | 127 mm |
| Travel-Long | 16" | 406.4 mm |
| Workhead Power | 2 hp | 1.5 kW |
| Wheel Power | 5 hp | 3.7 kW |
| Workhead Speed | 133 RPM | 133 RPM |
| Dresser | Yes | Yes |
| Dimensions | 93 x 85 | 93 x 85 |
| Weight | 7400 lbs | 7400 lbs |
271 HEALD SIZEMATIC BORE & FACE INTERNAL GRINDER
Remanufactured 2005
S/N 49222
STANDARD CATALOG SPECIFICATIONS
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 work head 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
Work head speeds.......................... 400, 266, 200, 133 RPM
One turn of cross feed hand wheel......... .060 on dia.
Wheel wear compensation on diameter.................... 0 to .004
Maximum power cross feed.................. .042 on dia.
DRIVE
Work head motor, standard voltages, 60 Cycles a c, infinite variable speed.
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 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.
Coolant pump & tank.
Single point diamond dresser.
Spark out timers.
Facing dresser mounted on guard.
440 Volts, 3 Phase, 60 Cycle.
Specifications are deemed accurate, however, subject to verification or prior sale.
