BRYANT "SUPER-PRECISION" CENTER HOLE GRINDER
MODEL: 500 S/N: C-12087
WORKPIECE LENGTH CAPACITY ................... 2" TO 42"
CLEARANCE, TAILSTOCK CENTER TO COLUMN ....... 6.2"
VISE CAPACITY W/STANDARD JAWS ............... 0.060" TO 6"
CONE ANGLE OF CENTER HOLES GROUND .......... 60 DEGREES
MAX. CENTER HOLE GROUND (LARGE END) ......... 2"
MIN. CENTER HOLE GROUND (LARGE END) ......... 0.050"
GRINDING SPINDLE SPEEDS (W/PULLEY CHANGE): .. 13,000 / 21,500 / 45,000 RPM
PLANETARY DRIVE SPEED ...................... 400 RPM
ANGULAR GRINDING STROKE ................... . 0.005" TO .100"
APPROX. WT. ................................. 1,250 LBS
DIMENSIONS .................................. 44" L-R, 42" F-B, 75" HIGH
** - PRODUCES GEOMETRICALLY CORRECT CENTER HOLES -
A VITAL REQUIREMENT FOR PRECISION O.D. GRINDING.
IT IS IDEAL FOR RECENTERING DISTORTED CENTERS IN
MACHINE SPINDLES, ARBORS, CENTER-CONTROLLED CHECKING
DEVICES & FOR OTHER SALVAGE WORK. IT MINIMIZES
STOCK REMOVAL & GREATLY IMPROVES WORK QUALITY
& ACCURACY. 60 DEGREE CENTERS UP TO 2" DIAMETER
CAN BE GROUND IN WORKPARTS UP TO 6" DIAMETER
AND 2" TO 42" LONG. OPERATION OF THE BRYANT
IS UNIQUE. INSTEAD OF UTILIZING
PLUNGE GRINDING, WITH IT'S INHERENT FAULTS,
IT "GENERATES" TO PRODUCE FINE FINISHES
& PRECISION TOLERANCES SIMILAR TO THOSE OBTAINED
ON AN INTERNAL GRINDER.
- HI-PRECISION 3-WAY GRINDING TO THE CONE-SHAPED
GRINDING WHEELS USED. THESE MOTIONS ARE -:
(1) ROTARY MOTION OF THE GRINDING CONE ABOUT ITS
SPINDLE AXIS.
(2) PLANETARY MOTION OF THE GRINDING CONE ABOUT
THE WORK AXIS.
(3) RECIPROCATING MOTION OF THE GRINDING CONE
ALONG A LINE 30 DEGREES FROM THE VERTICAL.
THE GRINDING CONE MAKES A LINE CONTACT WITH
THE CENTER HOLE SURFACE, WHICH SIMULTANEOUSLY
RECIPROCATING ALONG THIS LINE. THE UNEVEN
WHEEL WEAR, OCCURRING WITH REGULAR PLUNGE
GRINDING DUE TO FULL-WHEEL CONTACT, IS ELIMINATED.
EQUIPPED WITH:
ADJUSTABLE VISE ASSEMBLY
PIVOTING TOP CENTER
BIJUR SPRAYMIST LUBRICATION
WORK GUARD
CONE DRESSING ATTACHMENT WITH DIAMOND
SPINDLE MOTOR AND CONTROLS 1/2 HP 3/60/230-460 VOLT
PLANETARY DRIVE MOTOR AND CONTROLS - 1/4 HP 3/60/230/460 VOLT
WORK DRIVE MOTOR AND CONTROLS - 1/2 HP 3/60/230-460 VOLT
MACHINE IS PRESENTLY WIRED FOR 440 VOLTS
*** EXCELLENT CONDITION - PRISTINE & CRISP ***
Schedule an appointment to see it today!