ROYAL MASTER TG-12x4 Centerless Grinder with Automatic Cycle 1980’ GMT-3423
Reference # GMT-3423
Model # TG-12x4
Serial # 1131
Year of manufacture- 1980’
Capacity:
Infeed- .004" to 1-1/2" diameter x 4” Long
Thrufeed- .004" to 1-1/2" diameter
Length- 12' on 1/2" diameter
Wheels:
Grinding wheel (maximum)- 12" diameter x 4" wide
(minimum)- 10" diameter x 1/4" wide
Regulating wheel (maximum)- 6" diameter x 4" wide
(minimum)- 1/4" wide with spool
Regulating wheel head:
Maximum Angle of tilt for Thrufeed Grinding- 6° to left, 6° to right
Maximum Swivel for Taper Grinding- 5° to left, 5° to the right
Spindle Speeds:
Grinding wheel- constant speed - 2,040 R.P.M.
Regulating wheel- infinitely variable - 20 to 500 R.P.M.
R.P.M. Digital Display of regulating wheel
Automatic Cycling - Pneumatically actuated 6-phase unit which consistently repeats
the various pre-set cycle phases. Each infeed cycle phase can be independently
pre-set by the timer and controls for optium performance on infeed grinding app-
lications. The six phases are (1) - Advance to grind, (2) - Grind, (3) - Dwell for
sparkout, (4) - Retract to open position, (5) - Dwell in open position, and (6) - Load
(1/2" stroke)
Hydraulically actuated wheel dresser for grinding wheel & regulating wheel
Machine manuals
¼ H.P. Hydraulic pump (4 Gallon Reservoir)
1/8 H.P. coolant pump & tank
7-1/2 H.P. 3/60/230-460 volt main drive motor and electrical controls
Machine is wired for 460 Volt / 3 Phase / 60 H.Z.
Machine weight- 2500 Lbs.
Machine dimensions- 62” L x 34” W x 62’’ H
Machine location- F.O.B. Bradenton, Florida
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