Electro-hydraulic servo synchronization is a key technology in modern press brakes, offering superior precision, energy efficiency, and operational flexibility compared to traditional mechanical torsion-bar synchronization. In a mechanical synchronization system, a torsion bar physically connects the left and right sides of the ram, forcing them to move together. While this design is cost-effective and sufficient for many general fabrication applications, it has inherent limitations: asymmetric loading where a workpiece is positioned off-center causes the torsion bar to twist, allowing ram deflection and resulting in inconsistent left-right angles. Speed and friction variations between the two cylinders can create synchronization errors, and the system provides no real-time feedback or correction capability. Electro-hydraulic servo synchronization uses independent hydraulic cylinders for Y1 and Y2 axes, each equipped with optical scales or linear encoders that continuously measure ram position with accuracy of 0.001mm to 0.01mm. The CNC controller compares the actual positions to the programmed values and sends real-time correction signals to proportional valves that adjust hydraulic flow to each cylinder independently. This closed-loop control ensures perfect parallelism regardless of workpiece position, loading conditions, or material variations, with the bending accuracy reaching up to ±0.1 degrees angle tolerance and repeat positioning accuracy up to ±0.01mm. The advantages of electro-hydraulic synchronized press brakes include faster approach, working, and return speeds because the CNC system controls the entire bending procedure including return height, speed, mute point, and holding time. The machine delivers excellent unbalanced-bending performance, allowing different punches and dies to be installed across the working length without compromising angle consistency. For manufacturers processing high-mix, low-volume orders where setup flexibility and precision are critical, electro-hydraulic servo synchronization provides the performance needed to remain competitive. Our electro-hydraulic synchronous press brakes feature components from Bosch Rexroth hydraulic pumps, Heidenhain linear scales, and multiple controller options including Delem, ESA, and Cybelec. The machine frame adopts all-steel welded construction with stress-relieving tempering for good stability, and rust is removed with sandblasting and coated with anti-rust paint. Contact us to compare our synchronized systems against mechanical alternatives for your specific applications.