Grinding machines BUC 63(85)C PRACTIC, PROFI

The high-performance grinding machines of BUA series (Practic and Profi versions), BUB series (Practic, Profi and Multi versions) and BUC series (Practic, Profi and Multi versions) are designed for precise grinding of several external cylindrical surfaces of different diameters, their adjacent faces and transition radii on work pieces. In another version, they are suitable for grinding of internal cylindrical and tapered surfaces, and surface grinding of their adjacent faces. In its basic version, the grinder can be used for plunge-cut grinding or longitudinal grinding, with a fixed or oscillating table, successive plunge cutting with subsequent traverse regrinding.

Technical data

Swing diameter mm: 630, 850 
Max. distance between centres mm: 2,000, 3,000, 4,000 5,000, 6,000 
Max. work piece weight between dead centers kg: 3,000
live spindle grinding including fixture kg: 300 
between dead centres and supported by steady rests kg: 4,000 
Grinding wheel dimensions – standard mm: 750 x 100 x 305
Max. peripheral speed of grinding wheel m/s: 50
Work piece revolutions rpm: 4 – 38, 24 – 230
Wheel head swiveling range (manual), (Practic, Profi) ° +30 ÷ -10
Work head swiveling range (manual) °: 0 ÷ +90
Table swiveling with a centre distance of (mm):
2,000 ° + 6°30' ÷ -5° 
3,000 ° ± 5°
4,000 ° ± 4°
5,000 ° ± 3° 
6,000 ° 0° 
Electrical network – standard 3 x 400 V, 50Hz, TN-C-S  
Wheel head motor power kW 19 S6 – 60% 
Total peak power demand of machine kVA 65 (85)* 
Tolerance of work piece diameter IT 4