MBU Model
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
Technical data | MBU 80 | ||||
Min./max. Grinding diameter | 3 /80 mm | ||||
Max. workpart size | ø270×160 mm | ||||
Max. grinding length | 160 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 power | 1,48 kW/6 Nm | ||||
Z-axis – Table movement | |||||
Max. travel | 550 mm | ||||
Max. speed | 10000 mm/min | ||||
Linear scale resolution | 0,0001 mm | ||||
Servo motor power | 2,29 kW/11 Nm | ||||
Wheelhead | |||||
Max. spindle accepting hole | ø100×230 mm | ||||
Max. HF spindle speed | 180000 rpm | ||||
Max. belt spindle speed | 40000 rpm | ||||
Max. spindle power | 7,5 kW | ||||
Workhead | |||||
Speed range | 0,1-800 rpm | ||||
Spindle bore | 26 mm | ||||
Fitting taper | MT4 | ||||
Swiveling range | 0°-90° | ||||
Motor power | 0,75 / 3 kW |
Technical data | MBU 600 | MBU 850 | ||||
Min./max. Grinding diameter | ø10/ø500 mm | ø80/ø700 mm | ||||
Max. swing over diameter | ø600 mm | ø850 mm | ||||
Max. workpart length | 500 mm | 500 mm | ||||
Max. grinding length | 400 mm | 600 mm | ||||
Max. workpart weight (incl. chuck head) | 300 kg | 500 kg | ||||
X-axis – Wheelslide | ||||||
Max. travel | 350 mm | 400 mm | ||||
Max. speed | 10000 mm/min | 6000 mm/min | ||||
Linear scale resolution | 0,0001 mm | 0,0001 mm | ||||
Servo motor power | 1,48 kW/6 Nm | 2,29 kW/11 Nm | ||||
U-axis – Workhead slide | ||||||
Max. travel | 400 mm | 500 mm | ||||
Max. speed | 4000 mm/min | 4000 mm/min | ||||
Linear scale resolution | 0,0001 mm | 0,0001 mm | ||||
Servo motor power | 2,29 kW/11 Nm | 2,29 kW/11 Nm | ||||
Z-axis – Table movement | ||||||
Max. travel | 850 mm | 1250 mm | ||||
Max. speed | 8000 mm/min | 6000 mm/min | ||||
Linear scale resolution | 0,0001 mm | 0,0001 mm | ||||
Servo motor power | 2,29 kW/11 Nm | 3,3 kW/16 Nm | ||||
Wheelhead | ||||||
Max. spindle accepting hole | ø120×230 mm | ø120×300 mm | ||||
Max. HF spindle speed | 45000 rpm | 45000 rpm | ||||
Max. belt spindle speed | 40000 rpm | 40000 rpm | ||||
Max. spindle power | 15 kW | 15 kW | ||||
Workhead | ||||||
Speed range | 0,1-500 rpm | 0,1-500 rpm | ||||
Fitting taper | А6 DIN 55 026 | А11 DIN 55 026 | ||||
Swiveling range | 0°-90° | 0°-90° | ||||
Max. motor power | 10 kW | 10 kW |
Technical data | MBU 1000 | MBU 1200 | |||||
Min./max. Grinding diameter | ø150/ø800 mm | ø150/ø1000 mm | |||||
Max. swing over diameter | ø1000 mm | ø1200 mm | |||||
Max. workpart length | 600 mm | 700 mm | |||||
Max. grinding length | 600 mm | 600 mm | |||||
Max. workpiece weight (incl. chuck) | 800 kg | 1200 kg | |||||
X-axis – Wheelslide | |||||||
Max. travel | 440 mm | 440 mm | |||||
Max. speed | 6000 mm/min | 6000 mm/min | |||||
Linear scale resolution | 0,0001 mm | 0,0001 mm | |||||
Servo motor power | 2,29 kW/11 Nm | 2,29 kW/11 Nm | |||||
U-axis – Workhead slide | |||||||
Max. travel | 500 mm | 500 mm | |||||
Max. speed | 4000 mm/min | 4000 mm/min | |||||
Linear scale resolution | 0,0001 mm | 0,0001 mm | |||||
Servo motor power | 2,29 kW/11 Nm | 2,29 kW/11 Nm | |||||
Z-axis – Table movement | |||||||
Max. travel | 1250 mm | 1500 mm | |||||
Max. speed | 6000 mm/min | 3000 mm/min | |||||
Linear scale resolution | 0,0001 mm | 0,0001 mm | |||||
Servo motor power | 3,3 kW/16 Nm | 3,3 kW/16 Nm | |||||
Wheelhead | |||||||
Max. spindle accepting hole | ø120×500 mm | ø120×500 mm | |||||
Max. HF spindle speed | 45000 rpm | 45000 rpm | |||||
Max. belt spindle speed | 40000 rpm | 40000 rpm | |||||
Max. spindle power | 15 kW | 15 kW | |||||
Workhead | |||||||
Speed range | 0,1-300 rpm | 0,1-250 rpm | |||||
Fitting taper | А14 DIN 55 026 | А14 DIN 55 026 | |||||
Swiveling range | 0°-10° | 0°-10° | |||||
Max. motor power | 10 kW | 10 kW |