Heald 275 Internal Grinder W/ 48" Extended Bridge
275 HEALD EXTENDED BRIDGE INTERNAL GRINDER
S/N 46083 Year: 1978
STANDARD CATALOG SPECIFICATIONS
Swing over swivel plate, diameter............ 16 dia.
Swing over bed............................... 26
Swing inside guard........................... 14
Hole length, maximum.........................5
Hole diameter, maximum.......................5 1/2
Hole diameter, minimum....................... 1/8
Taper (included angle)bridge swivel......... 30 degrees
Taper (included angle) work head swivel...... 60 degrees
Center of work head spindle from floor....... 49 1/2
Table travel.................................16
Wheel head cross slide swivel to rear........ 4 degrees
SPEEDS FEEDS
Table speed, rapid traverse..................35 FPM
Table speed, grinding........................ 0 to 20 FPM
Work head speeds(4)...................570, 875, 1150, 1750
One turn of cross feed hand wheel.......050, .060 on dia.
Wheel wear compensation,manual.............. 0 to .004
Power cross feed........................038, .042 on dia.
Roughing feed,adjustment...............0001 to .0005
Finishing feed,nonadjustable................ .0001 on dia.
One turn of table hand wheel..................963
DRIVE
Hydraulic pump motor..................... 2HP, 1800RPM
Work head motor.......................... 11/2-1-3/4-1/2 HP
440 Volts.......................... 570,875, 1150, 1750RPM
Wheel head motor......................... 5HP, 3600RPM
Coolant pump motor.......................1/2 HP, 1800RPM
GENERALDATA
Capacity of oil tank.......................... 15 gallons
Capacity of coolant tank...................... 55 gallons
Length width of base on floor............... 105 x 36
128x 36
Floor space with or without coolant tank...... 126 x 74
149x 74
Net weight of machine......................... 10500 lb.
Gross weight of machine.......................12000 lb.
EQUIPMENT FEATURES
48 Extended bridge.
All trip dogs.
Face stop.
Single point dresser.
Specifications are deemed accurate, however, subject to verification or prior sale.
All exchange units/returns mustbe shipped within 30 days. All exchange units/returns must be shipped using DDPterms - Grinders Clearing House, Inc. dba GCH Machinery, is not responsible forany customs formalities or shipping costs.
If Grinders Clearing House, Inc.dba GCH Machinery does not receive exchange/core unit back within 30 days, GCHwill invoice FULL replacement cost (OUTRIGHT Cost) to customer.
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