Universal grinder for rollers RUP-280 is appropriate for grinding internal and external rotary surfaces and also for grinding flat fronts of different workpieces and flanges


It is characterized by:

  • higher speed of grinding up to 45m/s
  • high reliability and durability because of hydrostatic spindle bearings and hydrostatic guides

Characteristics of RUP-280 grinding machine in the range of geometrical parameters:

  • roughness Ra ≤ 0,16 μm
  • rotating 0,0015mm
  • rolling 0,005mm / 500mm
  • repeatability of diameter grinding ≤ 0,005m

Technical data

Max. grinding lengthmm500 lub 1000
Max. grinding speedm/s45
Max. external grinding diametermm280
Max. workpiece weight in centreskg125
Max. workpiece weight in chuckkg20
Grinding wheel diameter max./min.mm400 / 260
Swivel angle towards tailstock/workheadstopnie+/- 30°
Total travel with manual drivemm160
Additional travel of slide platemm60
Hydraulic rapid travelmm50
In-feed ranges: – roughm/min0,3 – 6,0
– finishingm/min0,08 – 3,0
Swivel angle towards the operator/oppositedegrees30° / 90°
Workpiece spindle taperMorseNo 4
Spindle stepless speed range (option)rpm25 ÷ 500
INTERNAL GRINDING(attachment included in special equipment)
Max. ground bore diametermm200
Spindle speed range: a)  40×250rpm10000/15000/30000
 b)  70×250rpm5700/8560/17120
Swivel angle towards wheelhead/operator fo:
L = 500degrees7° / 5°
L = 1000degrees4°/3°
Table speed feed rangemm/min.75 – 4000
Min. hydraulic table travel speedmm3
Max. spindle projectionmm25
Tailstock spindle taper: manual/hydraulicMorseNr 2 /  Nr 4
Max. powerkW10,5
Weight   L = 500  / L = 1000kg2600  /  2800



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