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48" GRAY 4-AXIS "RINGMASTER" CNC VERTICAL BORING MILL WITH

Vertical Boring Mills (incld VTL)
Manufacturer:
GIDDINGS & LEWIS
Model:
RM
Year:
1974
Stock #:
5856
48" GRAY 4-AXIS "RINGMASTER" CNC VERTICAL BORING MILL WITH

Chuck diameter 48"
Maximum swing with side head down 56"
Maximum swing with side head above table 50"
Maximum height under turret rail head saddle 48"
Turret slide travel 30"
Rail head horizontal travel either side
of table center
w/o way covers 32"
with way covers 30"
Side head horizontal ram travel 24"
Side head horizontal ram travel above table 39-1/2"
Standard table speeds (variable) 48 to 287 RPM
Feed range .05" to 60" per
minute
Rapid traverse rate 200 IPM
Approximate weight 55,000 lbs.
MACHINE SPECIFICATIONS
75 HP 3/60/460 Main drive motor

New Mitsubishi-Meldas L3 CNC controls, retrofitted in Sept. 1996 includin
g new axis
motors & drives
New control features
1. Memory pitch error compensation
2. Canned cycles G70 - G76
3. Part program memory capacity 80 meters
4. Inch/metric command
5. Constant surface speed G96/G97
6. Threading
48" 3-jaw power chuck

Five (5) position power indexing turret head on rail
Four (4) position power indexing side head
Hardened steel ways on rail, slide & ram
Accordian style rail covers
Miscellaneous tool holders

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