A hydraulic steady rest is a support device used in lathes or turning machines to stabilize long or slender workpieces during machining. Unlike traditional mechanical steady rests, the hydraulic steady rest uses hydraulic cylinders to automatically clamp and support the workpiece with consistent and adjustable pressure. This ensures better stability, reduces vibration and deflection, and improves machining accuracy. The hydraulic system allows for remote control and quick adjustments, making it ideal for automated or high-precision production environments. Commonly used in CNC turning centers, the hydraulic steady rest enhances operational efficiency and protects delicate workpieces from damage caused by over-tightening.