MBU Model

01
Section

INTERNAL CYLINDRICAL GRINDING MACHINE

ABOUT MACHINE

“MBU” model is internal cylindrical grinding machine for grinding medium and big sized parts. It is suitable for flexible and mass production, depends on the model selection and work part dimensions. This model originates by purchasing a license from the American manufacturer “Bryant”, but the design of the machine itself has been modified and improved over time in accordance with latest trends in the machine tool industry. The model classification is done based on maximum swing over diameter – 600, 850, 1000, 1200 mm. Internal grinding range starts from Ø15 – Ø1000 mm. An exception in the design of the MBU model is the MBU 80, which is produced on the basis of the BSB machine and is intended for grinding small holes from Ø3 – Ø80 mm.

The model is available in NC and CNC option. In both variants, it is possible to install a belt-driven grinding spindle or a high-frequency spindle, which can be changed when needed. Basic customization is related to turret wheelhead – B-Axis, with additional equipment according to the grinding requirement, primary in one set up: hole, face, taper, complex profiles. With CNC machines and B-Axis, it is possible to install only high-frequency internal grinding spindles.  

ADDITIONAL OPTIONS
  • Workhead equipped with C-Axis for grinding of polygons and eccentric forms
  • Q-Axis for workhead automatic swiveling
  • Workhead make with increased accuracy
  • Cross travel of workhead using U-Axis
  • Various choice for wheelhead configuration – different combination of grinding spindles
  • Spindle installation of increased power and torque
  • Special tooling for clamping related to different technical tasks
  • Manual and automatic closed steady rests with retractable arms and fine adjustment
  • Gap-crash system for collision control and higher safety
  • In-process, Post-Process gauging, touch probe for part axial positioning
  • Automatic loading / unloading using robot or portal manipulator
  • Remote diagnostic for immediate support and quick service
  • Machine compatibility with Industry 4.0
02
Section

Technical specification MBU model 80

MBU 80 model is internal cylindrical grinding machine for grinding medium and big sized parts.
Technical dataMBU 80
Min./max. Grinding diameter3 /80 mm
Max. workpart sizeø270×160 mm
Max. grinding length160 mm
Max. workpart weight (incl. chuck head)15 kg
X-axis – Wheelslide
Max. travel 80/250/400 mm
Max. speed 10000 mm/min
Linear scale resolution 0,0001 mm
Servo motor power1,48 kW/6 Nm
Z-axis – Table movement
Max. travel 550 mm
Max. speed 10000 mm/min
Linear scale resolution 0,0001 mm
Servo motor power2,29 kW/11 Nm
Wheelhead
Max. spindle accepting holeø100×230 mm
Max. HF spindle speed180000 rpm
Max. belt spindle speed40000 rpm
Max. spindle power7,5 kW
Workhead
Speed range0,1-800 rpm
Spindle bore26 mm
Fitting taperMT4
Swiveling range0°-90°
Motor power0,75 / 3 kW
03
Section

Technical specification MBU model 600, 850

MBU model is internal cylindrical grinding machine for grinding medium and big sized parts.
Technical dataMBU 600MBU 850
Min./max. Grinding diameterø10/ø500 mmø80/ø700 mm
Max. swing over diameterø600 mmø850 mm
Max. workpart length500 mm500 mm
Max. grinding length400 mm600 mm
Max. workpart weight (incl. chuck head)300 kg500 kg
X-axis – Wheelslide
Max. travel 350 mm400 mm
Max. speed10000 mm/min6000 mm/min
Linear scale resolution 0,0001 mm0,0001 mm
Servo motor power1,48 kW/6 Nm2,29 kW/11 Nm
U-axis – Workhead slide
Max. travel 400 mm500 mm
Max. speed4000 mm/min4000 mm/min
Linear scale resolution 0,0001 mm0,0001 mm
Servo motor power2,29 kW/11 Nm2,29 kW/11 Nm
Z-axis – Table movement
Max. travel 850 mm1250 mm
Max. speed8000 mm/min6000 mm/min
Linear scale resolution 0,0001 mm0,0001 mm
Servo motor power2,29 kW/11 Nm3,3 kW/16 Nm
Wheelhead
Max. spindle accepting holeø120×230 mmø120×300 mm
Max. HF spindle speed45000 rpm45000 rpm
Max. belt spindle speed40000 rpm40000 rpm
Max. spindle power15 kW15 kW
Workhead
Speed range0,1-500 rpm0,1-500 rpm
Fitting taperА6 DIN 55 026А11 DIN 55 026
Swiveling range0°-90°0°-90°
Max. motor power10 kW10 kW
04
Section

Technical specification MBU model 1000, 1200

model is internal cylindrical grinding machine for grinding medium and big sized parts.
Technical dataMBU 1000MBU 1200
Min./max. Grinding diameterø150/ø800 mmø150/ø1000 mm
Max. swing over diameterø1000 mmø1200 mm
Max. workpart length600 mm700 mm
Max. grinding length600 mm600 mm
Max. workpiece weight (incl. chuck)800 kg1200 kg
X-axis – Wheelslide
Max. travel 440 mm440 mm
Max. speed6000 mm/min6000 mm/min
Linear scale resolution 0,0001 mm0,0001 mm
Servo motor power2,29 kW/11 Nm2,29 kW/11 Nm
U-axis – Workhead slide
Max. travel 500 mm500 mm
Max. speed4000 mm/min4000 mm/min
Linear scale resolution 0,0001 mm0,0001 mm
Servo motor power2,29 kW/11 Nm2,29 kW/11 Nm
Z-axis – Table movement
Max. travel1250 mm1500 mm
Max. speed6000 mm/min3000 mm/min
Linear scale resolution 0,0001 mm0,0001 mm
Servo motor power3,3 kW/16 Nm 3,3 kW/16 Nm
Wheelhead
Max. spindle accepting holeø120×500 mmø120×500 mm
Max. HF spindle speed45000 rpm45000 rpm
Max. belt spindle speed40000 rpm40000 rpm
Max. spindle power15 kW15 kW
Workhead
Speed range0,1-300 rpm0,1-250 rpm
Fitting taperА14 DIN 55 026А14 DIN 55 026
Swiveling range0°-10°0°-10°
Max. motor power10 kW10 kW
05
Section

Machine catalogue

Model MBU 80

Internal grinding of smaller holes

MBU 80 catalogue Grindex Serbia Kikinda Grinding machines factory

Model MBU 600, 850, 1000, 1200

Internal grinding of medium and large holes

MBU Catalogue Grindex Serbia Kikinda Grinding machines factory
06
Section

Contact