271 HEALD TOOLROOM INTERNAL GRINDER S/N 271-TR-6207-4

PRIVATE 271 HEALD TOOLROOM INTERNAL GRINDER
S/N 271-TR-6207-4 Year:1962

STANDARD SPECIFICATIONS

CAPACITIES
Swing over table (straight work on center line)........ 22
Swing inside of standard coolant guard................... 12
Maximum length of hole that can be ground.............. 8
Maximum diameter of hole that can be ground... 21 3/4
Maximum included angle of taper................. 60 degrees
Center of chuck spindle from floor..................... 45 1/2
Work head spindle flange (std)........................... 9 5/8
Hole through work head spindle...................... 1 15/16
Table travel.......................................................... 16
Work head cross slide travel:
Front.....................6 Rear..................... 11 1/2

SPEEDS FEEDS
Table speeds for grinding unlimited between........ 0 - 18 FPM
Rapid traverse of table........................................... 18 FPM
Work head speeds - approximate....... 400-266-200-133 RPM
One turn of cross feed-hand wheel............. .050 on diameter
Roughing cross feed (adjustable)...0001 - .0006 on diameter
Finishing cross feed (non-adjustable)............001 on diameter
One turn of work slide hand wheel................................. 100

DRIVE
Hydraulic pump motor, 60 cycles a-c....... 1 1/2HP, 1800 RPM
Work head motor, 60 cycles a-c.............1 1/2, 1 3/4, 1/2 HP
1800-1200-900-600 RPM
Wheel head motor, 60 cycles a-c..................5 HP, 3600 RPM
Coolant pump motor 60 cycles a-c........... 1/2 HP, 1800 RPM
GENERAL DATA
Capacity of oil tank................................. 15 gallons
Capacity of standard coolant tank............. 55 gallons
Length and width of base on floor............. 66 1/4 X 28 1/8
Floorspace: (total)
With or without coolant tank............................... 91 X 87
Net weight of machine (approximate)................... 8,200 lbs.
Gross weight, crated (approximate)...................... 9,100 lbs.

EQUIPMENT FEATURES
Excello 20,000 RPM spindle.
Manual single point diamond dresser.
Manual or power table.
4Speed work head.
4Position positive stop.
Headstock jog.

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.