Voith has launched an innovative drive concept for demanding forming processes with its new CSH die cushion drive consisting of servo pump and double-acting die cushion. The CSH die cushion drive needs no valves and reduces energy consumption of the press significantly. In combination with the efficient PSH press drive, press operators can even save up to 80% energy in the future.
The Voith system feeds the mechanical power of the servo pump back to the process through the motor in the form of electric power. This reduces energy consumption and makes previously unattainable overall energy efficiency levels achievable. The servo-hybrid CSH die cushion drive uses a smaller oil reservoir, less oil and no costly cooling. The CSH provides exceptional repeatability. In addition, the CSH is freely programmable in terms of speed, force and position control, and acceleration. The programmability of the drive gives operators new capabilities when it comes to demanding forming processes.
With the combination of a PSH press drive and the new CSH die cushion drive, Voith has now developed a system that sets new standards in the world of servo presses. Both the PSH and the CSH can be scaled up easily into the megawatt range.
