Heald #171, internal grinder, 13.75"/11.75"/8" swing, 3" L x 2" diameter hole, 12" table travel, 20 FPM, 5 HP, 3600 RPM, 1952

171 Heald Sizematic, 8" Swing, Rough and Finish Timers, Trip Dogs, As Is
171 HEALD SIZEMATIC INTERNAL GRINDER
S/N 32781 Year: 1952
STANDARD SPECIFICATIONS
CAPACITIES
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 traverse...................... 35 FPM
Table speeds for grinding unlimited between....... 0-20 FPM
Workhead speed - two step sheave.................. 960 or 1360 FPM
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 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 (approx.).................... 5,400 lbs.
EQUIPMENT & FEATURES
Rough & finish timers
Trip dogs
Specifications are deemed accurate, however, subject to verification or prior sale.

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