271 HEALD TOOL ROOM INTERNAL GRINDER

PRIVATE 271 HEALD TOOL ROOM INTERNAL GRINDER
S/N 36384 Year:1957

STANDARD SPECIFICATIONS

CAPACITIES
Swing over table (straight work on center line)........ 22
Swing inside of standard coolant guard................. 18
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 1/2 HP, 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
Floor space: (total)
With or without coolant tank.................. 91 X 87
Net weight of machine (approximate)........... 8,200 lbs.
Gross weight, crated (approximate)............ 9,100 lbs.
Cross sliding work head.
12” 4 Jaw chuck.
Spindle wheel guard.
Flange style work head.

EQUIPMENT FEATURES
Red Head spindle.
Manual single point diamond dresser.
Manual or power table.
4 Speed work head.
4 Position positive stop.
Head stock 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.