Universal machine with character
MB 400U: CNC universal cylindrical grinding machine for workpieces up to 400 mm
The MB 400U is a CNC universal cylindrical grinding machine based on the MaiBase platform for high-precision internal and external cylindrical grinding up to 400 mm workpiece length. It was developed for applications where different workpieces and machining processes need to be flexibly mapped on one machine – from single parts to series production.
- 19'' LCD color display with touch function
- M.+M. Mai software with GUIDE for guided and simple program creation on the workpiece
- IPC operating system Windows 10 IoT
- Hand panel with axis and speed selector switch
- FEM-optimized polymer concrete bed for maximum stability and durability
- Mechanical separation of machine and peripherals for thermal stability and minimization of vibration influences
- Up to 100 kg workpiece weight
- MT3 and MT4
- Stroke 20 mm (optional 60 mm and 120 mm)
- Adjustment range +/- 30 µm
- Pneumatic and hydraulic lift-off
- Applications with stationary or rotating spindle
- Speed range 1 – 1,000 min-1
- Roundness accuracy ≤ 0.001 mm (optional ≤ 0.0005 mm)
- Oriented spindle stop
- MT4, MT5 and MT6 available
- Linear guideway for X-axis, low-maintenance, high-precision
- Low-wear sliding guideway for Z-axis
- Optical position measuring systems on X- and Z-axis
- High dynamics thanks to speeds of up to 8 m/min on Z- and X-axis
- Good overview of the grinding process
- Centrally and easily accessible interfaces for table attachments
- Thoughtful accessibility for cost-effective maintenance and service
- Optional with automatic door opening
- Cantilever 100 Nm
- Between centers up to 100 kg (depending on variant)
- Significant reduction in non-productive times thanks to fast swiveling of the fully automatic wheelhead
- Highest positioning and repeat accuracy through the use of a Hirth coupling
Thanks to its modular design and the swiveling wheelhead, the MB 400U enables versatile grinding strategies while reducing non-productive times. It is ideal for complex grinding tasks with high demands on dimensional accuracy, surface finish and form accuracy.
The robust machine structure made of polymer concrete, high-precision guideways and modern CNC technology ensure high process stability and reproducible results. At the same time, the machine offers excellent accessibility and flexible automation options, making it ideal for integration into a wide range of production environments.
Available with the following control
FANUC Oi-F Plus
Thanks to its powerful hardware, its standard 2 MB part program memory and its versatile functions for customer-specific adaptations (FANUC Picture, Macro Executor, C Language Executor), this CNC control is ideal for demanding grinding tasks and a guarantee of high-quality workpieces. The in-house developed Fast Cycle Time Technology ensures reduced cycle times.
- Simple and intuitive interaction via the screen
- Easier navigation and operation of the programs
- precisely tailored to the machine configuration and grinding processes
- innovative functions that are not available in standard solutions
- Operating manual and accessory documents available on the control
- Minimization of downtime and quick problem solving
- Cost savings through reduced on-site service calls
- such as grinding time, dressing time and workpiece change time (only for machines with integrated loader)
Technical Information
Main Data
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Grindable workpiece diameter
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Wheelhead
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Workhead
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Tailstock
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Longitudinal slide
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General Data
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After-Sales-Services
To support our customers in getting the most out of our machines, we offer them tailored After-Sales-Services. In addition to our Aktiv+ package for preventive maintenance & servicing, this also includes instructing operating personnel in the use of our machines. Regular staff training ensures that the machines are always used optimally and that smooth operation is guaranteed even with new employees. If required, training can also be carried out on site at the customer's premises.
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