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Heald #74 Internal Grinder, used, with a 20" diameter capacity. Features 24" swing over table, 15" grinding stroke, adjustable speeds, Red Head spindle, hydraulic table, and manual dresser. Ideal for precision grinding operations.
| Swing | 24" | 609.6 mm |
| Size Capacity | 20" | 20" |
| Max Grinding Bore | 20" | 508 mm |
| Stroke | 15" | 381 mm |
| Travel-Long | 18" | 457.2 mm |
| Workhead Swivel | 60 | 60 |
| Workhead Power | 3 hp | 2.2 kW |
| Wheel Power | 7.5 hp | 5.6 kW |
| Workhead Speed | 123 RPM | 123 RPM |
| Dresser | Yes | Yes |
74 HEALD INTERNAL GRINDER
S/N 25537
STANDARD SPECIFICATIONS
CAPACITIES:
Swing over table (straight work)........................ 24
Maximum diameter of hole that can be ground.... 20
Grinding stroke................................................ 15
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............................................. 18
SPEEDSANDFEEDS
Table speeds unlimited between....................... 0 to 18 ft. per min
Work head speeds adjustable from............. a-c 41-62-82-123RPM
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 - 1200RPM
Work head motor..1-1 1/2-2-3 Tapered HP, ac-600-900-1200-1800RPM
Wheel head motor........................................... 7 1/2 HP, ac-3600RPM
EQUIPMENTANDFEATURES
Red Head spindle.
All trip dogs.
Cross sliding work head.
Manual or hydraulic table.
All pick feeds.
Manual dresser.
Push button station.
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.
