The ANDRITZ Reject Compactor ReCo is a particularly robust screw press and is best suited for rejects of various particle sizes also containing significant amounts of fibers. The reject material is fed to the compactor, then conveyed by a rotating screw and compressed against two hydraulically actuated pressure hatches inside a counter-pressure unit. Wear-resistant, heavy-duty baskets retain the solids, while the water flows through the holes and is collected in a filtrate tray. The control philosophy of the press is based both on the counter-pressure and on the rotational speed of the screw for highest operational safety. The achievable dry content depends on the counter-pressure selected and the fiber content of the reject material – the lower the fiber content, the higher the final dry content. Depending on type of reject and fiber content, different types of Reject Compactor are used. Both models, ReCo-C and ReCo-F, can achieve final dryness of up to 70%.