Heald #77, internal grinder, 36" swing, 7" grinding stroke, 20" diameter hole, 13" table travel, 18 FPM, 7.5 HP, 3600 RPM

$1,800 USD

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77 Heald Internal Grinder, 36" Mag Chuck (19.5" ID Ring), Single Point Dresser, 20HP Spindle Motor
77 HEALD INTERNAL GRINDER
S/N 4124
STANDARD SPECIFICATIONS
CAPACITIES:
Swing over table (straight work)........................ 36
Maximum diameter of hole that can be ground............. 20
Grinding stroke......................................... 7
Taper swivel on work head.......................... 60inc.angle
Center of chuck spindle from floor...................... 50
Diameter of work head spindle flange.................... 12
Hole through work head spindle.......................... 1 11/16
Total table travel...................................... 13
SPEEDS ANDFEEDS
Table speeds unlimited between............... 0 to 18 ft. per min
Work head speeds adjustable from............. a-c 41-62-82-123 RPM
Cross feed dial graduation represents................... .001
Power feed adjustment........................ 1 to 6 teeth
Each ratchet tooth with coarse gears (standard)......... .0002
Each ratchet tooth with fine gears (optional)........... .000128
DRIVES
Pump motor............................... 2 HP, ac - 1200 RPM
Work head motor..1-1 1/2-2-3 Tapered HP, ac-600-900-1200-1800 RPM
Wheel head motor......................... 7 1/2 HP, ac-3600 RPM
EQUIPMENT AND FEATURES
All trip dogs.
Cross sliding work head.
Manual or hydraulic table.
All pick feeds.36” O.D. magnetic chuck.
Single point dresser.
4 Speed work head.
Specifications are deemed accurate, however, subject to verification or prior sale.
All exchange units/returns must be shipped within 30 days. All exchange units/returns must be shipped using DDP terms - Grinders Clearing House, Inc. dba GCH Machinery, is not responsible for any customs formalities or shipping costs.
If Grinders Clearing House, Inc. dba GCH Machinery does not receive exchange/core unit back within 30 days, GCH will invoice FULL replacement cost (OUTRIGHT Cost) to customer.