Application ZNS Series Double Nip Double Wire Press is suitable for washing and thickening of all kinds of pulp or stock in pulping and papermaking processes. It is available for higher thickening ratio and stock outlet consistency 28~35%. It is particularly suitable for dispersion system of the waste paper stock, high consistency bleaching of the mechanical pulp and the rejects refining etc. system as well as the former section of the market pulp machine. It is also very suitable for washing and thickening of the low freeness mechanical pulp and straw pulp. Structure features: The nip is long and the pressure difference is increasing gradually, the thickening ratio is high and accepts consistency can be controlled stably between 28~35% by using combined dewatering of the dewatering filter plate and double pressing roll unit with the application of double wire wedge dewatering principle. The dewatering amount and accepts consistency can be adjusted because of the automatic wire speed so the stable requirement of the procedure process to accept outlet consistency can be assured. It can be used in the production of the all kinds of stock including waste paper stock, chemical pulp and mechanical pulp. The two dewatering section consists of twin-wire wedge forming dewatering filter plate and double pressing roll unit, so its structure is new and original. Energy consumption for thickening is low (no vacuum is needed). The PLC control equipment. The system circulates more equilibrium. The fiber loses little