This paper proposes an energy-saving system based on a prefill system and a buffer system to improve the energy efficiency and the processing performance of hydraulic presses. Saving energy by integrating such systems into the cooling system of a hydraulic press has not been previously reported. A prefill system. powered by the power unit of the cooling system. https://www.kingarte.com/product-category/food-servicerefrigeration-equipmentcommercial-ice-machines/