Description

Okamoto PRG-6 – Year 1992

SURFACE GRINDER with ROTARY Table AUTO CYCLE , CHUCK TILTS +/-
PRECISION
MADE IN JAPAN

Brand : OKAMOTO
MODEL : PRG-6
S/N: 1203
MFG.: 1992

DIAMETER OF MAGNETIC CHUCK…… 23.6″

MAX. SWING (COOLANT GUARD)…… 29.5″

MAX. HEIGHT, UNDER 14″ WHEEL … 7.87″

STANDARD WHEEL SIZE…………. 14″DIA.

1.5″ TO 2″”W

5″ BORE

GRINDING WHEEL MOTOR ……….. 10 H.P.

AUTO SPINDLE DOWNFEED……….. 0.0001″-.001″

RAPID FEED ………………… 11.2″ IPM

HAND FEED PER REV. …………. 0.02″

ONE GRADUATION OF DIAL ……… 0.0001″

MAX. ANGLE (CONVEX/CONCAVE ….. 3 DEGREES

CHUCK SPEEDS, INF. VARIABLE …. 20 TO 150 RPM

TABLE TRAVEL (MAX) …………. 15.7″

TABLE TRAVERSE RATE ………… 0-15 FPM

LUBRICATION PUMP MOTOR ……… 0.33 HP

APPROXIMATE MACHINE WEIGHT ….. 7,780 LBS.

MACHINE TOOL DIMS. …………. 86″L-R x 106″F-B x 79″H

EQUIPPED WITH:

SONY MAGNESCALE LH 10 TWO-AXIS DIGITAL READOUT DISPLAY

WHEEL DRESSER MOUNTED ON WHEEL HEAD

23.6″ DIAMETER “CONCENTRIC POLE” FINE-DIVISION

ELECTRO-MAGNETIC CHUCK

VARIABLE HOLD NEUTROFIER CONTROL FOR THE

ELECTRO-MAGNETIC CHUCK

COOLANT SYSTEM WITH PAPER FILTRATION

MACHINE FEATURES:

“UNIQUE NON-UNIFORM TABLE FEEDS”

– THESE ROTARY & LONGITUDINAL TABLE SPEEDS

ARE DESIGNED TO INCREASE WHEN THE GRINDING WHEEL

MOVES FROM THE OUTSIDE TO THE CENTER OF THE TABLE

WITH A RATIO OF 3:1 SO THAT INCREASED

PRODUCTIVITY CAN BE OBTAINED AS COMPARED

TO THE CONVENTIONAL CONSTANT SPEED TYPE GRINDERS.

AUTOMATIC GRINDING CYCLE WITH SPARKOUT TIMER

SETTING KNOB FOR AUTOMATIC INCREMENTAL DOWNFEED

HANDWHEEL FOR MANUAL VERTICAL FEED

THE TABLE ON THE SADDLE MOVES LONGITUDINALLY

ON THE WAYS OF THE BED

SELECTOR SWITCH

INFINITELY VARIABLE CHUCK SPEEDS, BY TURNING A DIAL

INFINITELY VARIABLE LONGITUDINAL SPEED SETTING,

BY TURN OF A DIAL

ROTARY & LONGITUDINAL SPEEDS OF THE TABLE ARE

EACH ACTUATED BY DC DRIVE MOTORS

TABLE TILTS, PLUS/MINUS 3 DEGRESS OF CENTER

POWER RAPID TRAVERSE FOR WHEEL ELEVATION BY PUSHBUTTON

SEPARATE LUBRICATOR FOR VERTICAL WAYS

10 H.P. SPINDLE MOTOR, 3/60/220-440 VOLTS

3 H.P. DC MOTOR TABLE DRIVE

WORK COMPLETED! MACHINE IS READY!

MACHINE HAS BEEN REFURBISHED WHERE NECESSARY,

AND REPAINTED “OKAMOTO WHITE” WITH EPOXY PAINT.

WORK PERFORMED WAS EXTENSIVE, THE MACHINE WAS

BE DISASSEMBLED, THIS IS A COMPREHENSIVE JOB.

BASE WAYS AND SADDLE REGROUND

TOOL REBUILDERS OF RANDOLPH, NJ.

MACHINE IS SOLD WITH A 30 DAY RETURN PRIVILEGE.