6967-430 Studer Model RHU 650 Universal Cylindrical Grinder

Item #6967-430

Technical Specs:

• Serial number: 201.27
• Year of manufacture: 1978
• 220V/3PH/60HZ
• Center height: 4.92"/6.89"
• Distance between centers: 27.56"
• Table travel: 27.56"
• Maximum ground length @ 30 degree approach: 20.87"
• Table speed, sleeplessly variable:16-18 ft/minute
• Reverse dwell: 0 - 6 sec.
• Minimum reverse stroke: .059"
• Maximum swivel of table: 10 degrees
• Distance traveled per hand wheel revolution: .984"
• Work head:
  • Swivel toward grinding wheel: 90 degrees
  • Speed steplessly variable
  • Center height 125mm - rpm remotely controlled
  • Center height 175mm - rpm remotely controlled
  • Taper in spindle nose: Morse #5
  • Collet shank diameter: .984"
  • 3-Jaw chuck diameter: 6.3"
  • Northfield precision chuck - currently on machine: 4"
• Wheel head:
  • Grinding wheel left
    • Diameter to choice: 16/12"
    • Maximum width: 2"
    • Bore: 5"
• Grinding wheel right
  • Speed of grinding spindle: 3 - step v-belt pulley
  • 400 mm, 16" rpm: 1500/1625/1800
  • 300mm, 12" rpm: 2000/2200/2420
• Motor: 4 HP, Power: 5 KW
• Hydraulic rapid advance wheel head retract: 1.57"
• Additional travel via handlever: 8.27"
• Swivel of head: 3 degrees
• Accuracies as per the operator's manual incremental infeed per stroke steplessly variable diameter: .00004 - .002"
• Continuous infeed steplessly variable per second, diameter: .000008 - .004"
• Depth of plunge on standard diameter: .670"
• Overall size: 124"(L) x 53.1"(W)
• Estimated weight: 2200 lbs.

Equipped with:

• Pneumatic 3-Jaw chuck
• Separate control station
• Coolant system