Summary

The Starrag Berthiez RVU 1800/160 is a CNC vertical grinding machine designed for high-precision surface and profile grinding, particularly for applications in the bearing and aerospace industries. It supports complete machining in a single setup with multi-spindle configurations and a torque-driven rotary table, enabling tight concentricity and axial run-out control.

Key Capabilities

• High-precision surface and profile grinding with axial run-out and concentricity below 5 μm
• Vertical orientation with rotary table driven by torque motor for enhanced rigidity and vibration damping
• Up to four water-cooled grinding spindles, including options for CBN and conventional wheels
• Grinding head tilt adjustment from -5° to +275°, fixed by Hirth coupling
• In-process measurement, dynamic balancing, and integrated dressing unit options
• Complete machining capability, including optional hard metal turning and drilling

Key Specifications

| Parameter | Value | Unit |

| Swing diameter | 1800 | mm |

| Grinding diameter | 1600 | mm |

| Table load | 4000 | kg |

| Grinding spindle power (max) | 45 | kW |

| Grinding spindle speed (max) | 18000 | rpm |

| Table speed (max) | 120 | rpm |

| Height under wheel (100 mm thick) | 500 / 800 | mm |

| Grinding ram stroke | 800 / 1000 | mm |

| X- and Y-axis speed (max) | 10000 | mm/min |