Summary

The Starrag Berthiez RVU 2200/200 is a CNC vertical grinding center designed for high-precision grinding, specifically suitable for large bearing and aerospace components. Its core function is precision surface and profile grinding in a single set-up, enabled by multiple water-cooled grinding spindles, hydrostatic rotary table, and advanced kinematic capabilities. Key differentiators include a large swing diameter, fully hydrostatic torque motor-driven table, and optional integrated dressing, tool changing, and workpiece measurement systems for complete machining operations.

Key Capabilities

• High-precision grinding with axial run-out and concentricity accuracies below 5 μm
• Simultaneous multi-spindle operation with up to four water-cooled grinding spindles
• Complete machining in one set-up, including optional boring, drilling, and hard metal turning
• Full CNC control with programmable grinding head tilt from -5° to +275° (Hirth coupling fixation)
• Hydrostatic thrust bearing and torque motor drive for vibration-damped, high-stiffness rotary table
• Automation options including grinding wheel changers, dressing units, and in-process workpiece measurement
• Designed for heavy workpieces up to 5,000 kg and large components (up to 2,200 mm swing diameter)

Key Specifications