Universal Grinding Machine

UB 32, 40, 50 CNC

Distance between centers1 000; 1 500; 2 000; 3 000; 4 000mm
Max. swing diameter320; 400; 500mm
Minimum X axis increment0.001mm
Minimum Z axis increment0.005 (0.001)mm
Grinding wheel peripheral velocity25 - 45m/s
Max. weight between centers500 (600)kg
Max. workpiece weight incl. fixture - overhanging100kg
Grinding wheel diameter500 (600)mm
Spindle power11 (15)kW
CNC control systemSiemens Sinumerik 840D sL or Kavalír K 51-2


Universal cylindrical grinding machines UB 32, 40, and 50 CNC are based on the basis of time-tested design, complemented by modern features. These grinding machine are used for grinding of workpieces max. Diameter of 320, 400 and 500 mm and a max. Length of 4000 mm, clampend between centers or overhung in a chuck with the possibility to use of internal grinding device *. During grinding, the machines can be controlled manually or work in fully automatic grinding cycle (grinding multiple diameters (multicycle), plunge grinding or lengthwise grinding, grinding of convex or concave diameters with automatic grinding wheel dressing). Workpieces are clamped between centers, overhung in chuck or on a magnetic permanent plate. The machines are intended for precise and high-performance grinding of individual pieces but also for large series of workpieces.

  • Flexible grinding of medium-heavy to heavy cylinders and shafts
  • Manual or automatic grinding
  • Optional grinding wheel size, saving and location
  • Control system CNC – Siemens 840 Sinumerik D sL or Kavalír K51-2
  • Inner and outer grinding
  • Partial or full cover of machine with grinding mist exhaustion
  • SBS Dynamic balancing system of grinding wheel
  • Measuring, cooling and electric systems by world leading manufacturers.
  • Flexible arrangement of additional components.

Photo gallery

UB 32, 40 and 50 CNC
UB 32, 40 and 50 CNC
UB 32, 40 and 50 CNC
UB 32, 40 and 50 CNC
UB 32, 40 and 50 CNC
UB 32, 40 and 50 CNC
UB 32, 40 and 50 CNC
UB 32, 40 and 50 CNC
UB 32, 40 and 50 CNC
UB 32, 40 and 50 CNC
UB 32, 40 and 50 CNC
UB 32, 40 and 50 CNC

Standard accessories

  • Coolant splash guards – partially covering with a manual-controlled door
  • Tailstock mounted wheel dresser (without diamond)
  • Fixed tips (2 pc):
  • - sedimentation cooling system
  • - electric foot pedal for pneumatic tailstock control
  • Puller of grinding wheel flange
  • Suspension of grinding wheel flange
  • Set of pads for bed leveling
  • Balancing arbor with a nut
  • Tools for operating of machine
  • Machine LED spot light IP 65
  • Technical documentation

Special accessories

  • Size gauge for longitudinal workpiece positioning
  • In-process measurement of workpiece diameter
  • SBS Automatic electro-dynamic balance system of the grinding wheel
  • Extra grinding wheel flange
  • Internal grinding att. complete incl. spindle and motor-drive
  • Closed steady rest actuated by hand
  • Tilting wheel dresser table mounted w/o diamond actuated by hand
  • Three jaw-chuck, incl. adapter plate
  • Permanent magnetic plate incl. adapter plate
  • Auxiliary rests with different diameter range
  • Side and angular dresser table mounted w/o diamond actuated by hand
  • Radius dresser table mounted w/o diamond actuated by hand
  • Att. for fine table swiveling with dial indicator
  • Water tank fitted with a magnetic or belt filter or a combination thereof
  • Wheel balancing stand