Item #15678A TARNOW MODEL RUP-28 UNIVERSAL CYLINDRICAL GRINDER WITH INTERNAL GRINDING ATTACHMENT, 12” X 20”

$26,500.00

1 in stock

YEAR:  2000

GENERAL
MACHINE DIMENSIONS: 5’8″ LR x 5’3″ FB x 5’9″ H
ELECTRICS: 220 VOLT, 60 CYC, 3 PH

EQUIPPED WITH
SONY 2-AXIS DRO
INTERNAL GRINDING ATTACHMENT
COOLANT SYSTEM WITH MAGNETIC SEPARATOR CENTERS

Location:  PA

1 in stock

Description

MAXIMUM SWING OVER TABLE: 12”
MAXIMUM OD GRINDING DIAMETER: 11”
MAXIMUM DISTANCE BETWEEN CENTERS: 20”
MAXIMUM WORKPIECE WEIGHT IN CENTERS: 270 LBS
MAXIMUM WORKPIECE WEIGHT IN CHUCKS: 44 LBS

GRINDING WHEEL
DIMENSIONS: 16” X 2” X 5”
MINIMUM WORN GRINDING WHEEL DIAMETER: 10.25”
GRINDING WHEEL SPINDLE SPEEDS: 1,850 – 2,180 RPM
MAIN DRIVE MOTOR: 7.5 HP

WHEEL HEAD
SWIVEL ANGLE TOWARD FOOTSTOCK/WORK HEAD: 30°/30°
HAND WHEEL FEED STROKE: 6-3/8”
ADDITIONAL TRAVEL OF SLIDE PLATE: 2.36”
AUTOMATIC RAPID FEED STROKE: 2”

DISPLACEMENT OF WHEEL HEAD
PER REVOLUTION OF HAND WHEEL: .04”
PER ONE GRADUATION OF HAND WHEEL: .0001”
PER ONE GRADUATION OF FINE FEED KNOB: .000020”

INFEED RANGES
COARSE: .012” – .236”
FINE: .003” – .118”
AUTO INFEED RANGE AT TABLE REVERSAL:  .001″ – .0015″

INTERNAL GRINDING ATTACHMENT
MAXIMUM ID DIAMETER: 7-7/8”
MAXIMUM GRINDING LENGTH: 4-3/4”
SPINDLE SPEED RANGES (4): 5,706/8,560/10,000/15,000
17,120/30,000 RPM
INTERNAL GRINDING MOTOR: 1.5 HP

WORK HEAD
SWIVEL ANGLE TOWARDS OPERATOR/WHEEL: 30°/90°
CENTER TAPER: MT 4
SPINDLE HOLE DIAMETER: .86”
SPEEDS, LOW RANGE: 50/70/185/255 RPM
SPEEDS, HIGH RANGE: 100/140/375/520 RPM

TABLE
SWIVEL ANGLE TOWARDS WHEEL/OPERATOR: 12°/5°
TRAVERSE SPEED, INFINITELY VARIABLE: 75 – 4,000 RPM
MINIMUM AUTOMATIC TRAVEL: 1/8”
SPARK OUT TIME, CONTROL RANGE: 0 – 10 SECONDS

HYDRAULIC FOOTSTOCK
MAXIMUM SPINDLE RETRACTION: 1”
CENTER TAPER: MT 4
MANUAL QUILL TRAVEL: 5/8”

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