Reference #: GMT-1765
Model # : E 450U 1000
Serial # : 102125/1
Year of manufacture: 1978'
General::
Height of centers above table: 7.08”
Distance between centers: 44"
Maximum grinding length: 40.9"
Maximum external grinding wheel size: 15.75" diameter x 2.5" wide
Maximum facing grinding wheel size: 8.86" diameter x 1.5" wide
Maximum internal grinding wheel diameter: 5.9"
Maximum work piece diameter (new wheel): 13.78”
Maximum work piece weight between centers: 440 Lbs.
Maximum work piece weight on chuck: 220 Lbs.
Height of centers above floor level: 41"
Wheelhead::
Grinding wheel spindle diameter: 2.75"
Circumference speed of external grinding wheel: 1,260 I.P.S.
Wheelhead on base overall travel: 13.98"
Wheelhead base overall travel: 5.5"
Wheelhead base rapid travel: 2.36"
Wheelhead rapid traverse speed: 59 I.P.M.
Infeed::
Infeed per revolution of handwheel: .098"
Feed handwheel graduated to: .00039"
Fine feed graduated to: .000079"
Maximum infeed return: .09”
Infeed amount, traverse grinding: .000079"-.002"
Infeed rate, plunge-cut grinding: .001-.79 I.P.M.
Workhead::
Workhead spindle taper: #4 Morse
Workhead spindle speed: infinitely variable in two ranges- 32-500 R.P.M.
Tailstock::
Tailstock spindle taper: #4 Morse
Tailstock quill retraction: 1.57”
Workslide and Table::
Travel per revolution of handwheel: .78"
Slide speed: .394 – 197 I.P.M.
Slide stroke, minimum: .118"
Table swivel (clockwise/counter clockwise): 6° / 9°
Hydraulically actuated table traverse with manual adjustment
Universal wheelhead & motorized workhead with combination live/dead center
Automatic infeed of the grinding wheelhead at either left, right, or both sides of table reversal for traverse grinding or with the table stationary for plunge feed grinding
Automatic grinding cycle in traverse or plunge grinding modes, including rapid approach of the grinding wheelhead, both rough and fine feed settings, sparkout and rapid wheel head retraction
Adjustable table tarry at the left or right sides of table reversal
Swing-around internal grinding attachment with (2) internal spindles
Foot treadle for advancement & retraction of hydraulically actuated tailstock quill
Tailstock with half center and holder for wheel dresser
Table-mounted wheel dresser holder
(3) Wheel hubs
(2) Table-mounted t-slotted work holding fixtures
8" Diameter ROHM three-jaw chuck
6" Diameter capacity three-point plain-type steady rest
Open work rest
Leveling pads
External coolant pump and tank
.16 H.P. 3/60/230-460 volt wheelhead lubrication motor
1.34/.67 H.P. 3/60/460 volt two-speed workhead drive motor
2 H.P.3/60/230-460 hydraulic pump motor
7.5 H.P. 3/60/230-460 volt wheelhead drive motor
Machine is wired for 460 volt operation.
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