Manual cylindrical grinding with high end precision

On this cylindrical grinding machines of the GU-series skilled workers achieve a grinding accuracy of 1 µm. This accuracy is maintained by highly precise and well coordinated machine components.

Special features:

  • highest accuracy by hydrostatic guideways of the X-axis and hand scraping
  • O. D. grinding cycles for traverse or plunge grinding with sparking out and rapid retract of the grinding wheel at cycle end

The GU-35A can handle workpieces up to 350mm in diameter and 1200mm in length and convinces through outstanding accuracy, ease of use and its appealing price-performance ratio.

The GU 20A is designed for smaller workpieces up to 200mm in diameter and 500mm in length. In precision and performance it surely equals the bigger models.

Spindles and grinding spindles are also ground on GU-machines with tolerances of less than 0.002 mm.
The grinding spindle comes with a hydrodynamic bearing (optionally a hydrostatic bearing). Hydraulic properties guarantee a stiff and highly precise bearing.
TONGIL manual cylindrical grinding   GU-20 A GU-32 A GU-35 A
Swing over bed mm 200 320 350
Max. grinding diamenter mm 200 200 270
Distance between centers mm 250 (500) 500 (1100) 600 (1000, 1200)
Max. workpiece weight kg 20 130 130
Traverse trave mm 330 (600) 640 (1250) 750 (1150, 1350)
Auto. feed (hydr.) mm 50-4000 50-3000 50-3000
Net weight approx. kg 1500 (1700) 2700 (3400) 3100 (3800, 3850)