USED TARNOW MODEL RUP-28 UNIVERSAL CYLINDRICAL GRINDER WITH INTERNAL GRINDING ATTACHMENT, 12” X 20”

STOCK# TK-20451

S/N 1908 | NEW 2000

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SPECIFICATIONS

  • 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

WHEELHEAD

  • SWIVEL ANGLE TOWARD FOOTSTOCK/WORKHEAD: 30°/30°
  • HANDWHEEL FEED STROKE: 6-3/8”
  • ADDITIONAL TRAVEL OF SLIDE PLATE: 2.36”
  • AUTOMATIC RAPID FEED STROKE: 2”

DISPLACEMENT OF WHEEL HEAD

  • PER REVOLUTION OF HANDWHEEL: .04”
  • PER ONE GRADUATION OF HANDWHEEL: .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): 5,706/8,560/10,000/15,00017,120/30,000 RPM
  • INTERNAL GRINDING MOTOR: 1.5 HP

WORKHEAD

  • 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°
  • TRAVESE 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”

EQUIPPED WITH

  • SONY 2-AXIS DRO
  • INTERNAL GRINDING ATTACHMENT
  • COOLANT SYSTEM WITH MAGNETIC SEPERATOR
  • CENTERS

PRICE $ 26,500.00