Heald 171 SIZEMATIC INTERNAL GRINDER

171 HEALD SIZEMATIC INTERNAL GRINDER
Year: 1964

STANDARD CATALOG SPECIFICATIONS
Maximum swing, straight work on center line dia.... 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 rraverse...................... 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) voltages................. 60 Cycle a‑c 1 HP‑1800 RPM
Oil pump motor................. 60 cycles a‑c 1‑1/2 HP‑1800 RPM
Wheel head motor............... 60 cycles a‑c 5 HP‑3600 RPM
Coolant pump motor............. 60 cycles 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 (approx.).................... 5,400 lbs.

EQUIPMENT & FEATURES
Electric single point diamond dresser
All trip dogs
Rough & finish timers
460 Volts