Hydromechanical press breaks enforce downward pressure using hydraulic actuators on both sides of the machine. As the ram descends and comes into contact with the metal, resistance is certain and the bed bows and creates deflection. In engineering, deflection refers to the distortion of shape produced by the pressure and weight applied. Crowning systems compensate for the deflection that occurs in the ram and bed. They ensure a consistent bending angle across the entire length of the press break and have the option of being CNC or manually operated.
Hydro-mechanical crowning systems are a good option for large press brakes. Ask your JMT salesperson if this option is right for your application.