Heald 171 SIZEMATIC INTERNAL GRINDER

171 HEALD SIZEMATIC INTERNAL GRINDER



Maximum swing, straight work on centerline......... 13‑3/4"
Maximum swing over table........................... 11‑3/4"
Swing inside standard guard diameter............... 8"
Maximum length of hole............................. 3"
Maximum diameter of hole........................... 2"
Minimum diameter of hole........................... 1/8"
Maximum included angle (Sizematic Only)............ 60 degrees
Center of chuck spindle from floor................. 44"
Diameter of workhead spindle flange................ 6"
Table travel....................................... 12"

SPEEDS & FEEDS
Table speed ‑ rapid traverse...................... 35 FPM
Table speeds for grinding unlimited between....... 0 ‑ 20 FPM
Workhead speed ‑ two step sheave.................. 960 or 1360 RPM
One turn of cross feed hand wheel................. .060" on dia.
Maximum power cross feed.......................... .042" on dia.
Wheel wear compensation on diameter............... 0 ‑ .004"

DRIVE
Work head motor (std).............. 60 cycle a‑c 1 HP‑1800 RPM
Oil pump motor..................... 60 cycle a‑c 1‑1/2 HP‑1800 RPM
Wheel head motor................... 60 cycle a‑c 5 HP‑3600 RPM
Coolant pump motor................. 60 cycle a‑c 1/4 HP‑1800 RPM

GENERAL DATA
Capacity of oil tank............................... 10 gallons
Capacity of coolant tank........................... 55 gallons
Net weight of machine, approximate................. 5,400 lbs.

EQUIPMENT & FEATURES
Red Head Spindle 20,000 RPM
Electric single point diamond dresser
All trip dogs
Facing stop
Rough & finish timers
Sizematic feed Box
Complete with electrics and controls
Facing slide with facing feed box