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7" GRAY MODEL 770P PLANER TYPE HORIZONTAL BORING MILL

Horizontal Boring Mills
Manufacturer:
G.A. GRAY
Model:
770P
Year:
1966
Stock #:
3760
7" GRAY MODEL 770P PLANER TYPE HORIZONTAL BORING MILL

Diameter of spindle 7"
Spindle travel 48"
Table size (working surface) 96" x 18'2"
Vertical travel of head08"
Column travel in/out 36"
Outboard support travel in/out 36"
Spindle speeds (24) 3 to 600 RPM
Spindle taper #7 Morse
Spindle feeds, infinitely variable .003 to 12 IPM
Headstock feeds, infinitely variable.033 to 120 IPM
Table feeds, infinitely variable .027 to 160 IPM
Column feeds, infinitely variable .011 to 40 IPM
Rapid traverse rate
Spindle 100 IPM
Head 120 IPM
Table 360 IPM
Column 40 IPM
Maximum table load capacity 300,000 lbs.
Approximate weight 281,955 lbs.

MOTOR SPECIFICATIONS

75 HP Main spindle drive motor

96" x 18'2" Heavy duty table - 300,000 lb. capacity
Pendant controls
Power draw bar
Automatic power clamping, table, column, bed
Automatic lubrication system
Outboard support complete with power vertical travel
Precision scales and verniers
TEMPORARY SPECIFICATIONS SUBJECT TO CHANGE AND VERIFICATIO
N

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