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, 1962

171 Heald Sizematic Grinder, Electric Single Point Diamond Dresser, Facing Stop, Rough and Finish Timers, All Trip Dogs, Facing Slide with Facing Feed Box, As Is
171 HEALD SIZEMATIC INTERNAL GRINDER
S/N 171?SG?6206-10
STANDARD CATALOG SPECIFICATIONS
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
NOTE: What makes this machine unique is that the design allows the I.D. grinding of bores and faces on the inside of bores.
Specifications are deemed accurate, however, subject to verification or prior sale.