At METEC, Dango & Dienenthal will for the first time be presenting rail-bound forging manipulators of its SSM series that come with the new ERS Energy Recovery System. While reducing the energy demand of the moving drive by up to 70%, the system also reduces the time needed to position the forgings in the press by up to 30%. The first such machine will soon be delivered to a customer in Germany.
During positioning of the forgings in the open-die press, the tongs of Dango & Dienenthal manipulators are carrying masses between 10 and 3,500 kN. In between the press strokes, the moving drive must accelerate and decelerate masses – including the workpiece – of up to 14,000 kN.
By introducing the new ERS Energy Recovery System, up to 70% of the energy input for the acceleration is recovered: During each deceleration action, the hydraulic fluid flows back into an accumulator from where it will be extracted for the next acceleration action. This reduces the manipulator’s total energy demand by 25 to 30%.
