Universal grinding machine BUB E 32/40/50 CNC

BUB E CNC is fully CNC controlled grinding machine designed for traverse and plunge-cut grinding of cylindrical and conical external surfaces, or with internal grinding attachment for grinding of cylindrical and conical internal surfaces. Grinding of surfaces can be performed by the side of grinding wheel or its circumferential surface with using work head swivel. Grinding machine series BUB E can be used particularly in series and large series production for grinding of workpieces up to 500 kg. The machine is made in the high accuracy and enable grinding of single diameters in the tolerance of IT 4 and higher. Standard version of the machine is equipped with control system Siemens 802D sl, alternatively Siemens 840D sl or B&R. 

Description of the machine

Control systems
Siemens 802D sl / Siemens 840D sl / B&R



Basic parameters

Swing diameter:  320 / 400 / 500 mm

Distance between centers: 1000 / 1500 and 2000 mm

Max. weight of workpiece - between centers : 500 kg

Ball screws

Feed for X and Z axes is provided by high precision ball screws from reputable Czech manufacturers (KSK Kuřim), or from abroad (Shuton Spain). Ball screws are made in precision accuracy IT 1 for axis Z. Screws are mounted in acurate cases using preloaded radial-axial bearings INA.

Technology cycles:

  • Longtitudal grinding
  • Plunge cut grinding
  • Multiple plunge grinding
  • Taper grinding (cone)
  • Convexity/concaxity grinding
  • Dressing
  • Ball grinding


Electrically powered tape finishing attachement to enable superfinishing of ground and fine-turned surfaces. Well suited for machining workpiece collars with radii or very small relief cuts. Apart from cylindrical workpieces, flat surfaces can also be mechined. Usually 0,05 Ra


Machine pictures