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6" GRAY MODEL 660P PLANER TYPE HORIZONTAL BORING MILL

Horizontal Boring Mills
Manufacturer:
G.A. GRAY
Model:
660P
Year:
1956
Stock #:
4544
6" GRAY MODEL 660P PLANER TYPE HORIZONTAL BORING MILL

Diameter of spindle 6"
Spindle travel 48"
Table size (working surface) 68" x 146"
Total table travel 168"
Vertical travel of headstock 72"
Column travel in/out 36"
Outboard support travel in/out 36"
Spindle speeds (24) 4-1/2 to 900 RPM
Spindle taper #6 Morse
Spindle feeds, infinitely variable .02 to 12 IPM
Headstock feeds, infinitely variable.02 to 120 IPM
Table feeds, infinitely variable .2 to 120 IPM
Column feeds, infinitely variable .067 to 40 IPM
Approximate weight 150,000 lbs.

MOTOR SPECIFICATIONS

40 HP Main spindle drive motor

New solid state DC electrical power supply controls
36" Facing head
Dual 2-axis digital readouts
Anti-backlash table drive
Automatic power clamping, table, column, bed
Automatic lubrication system
Outboard support complete with power vertical travel
48" x 48" Square rotary table
NOTE Machine appears to be in excellent condition, and was purchased from
a large U.S. Defense
contractor.

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