Copyright © 2016, AIDIC Servizi S.r.l. In the previous research authors developed tunable method for PID controllers to achieve the desired phase margin. Crossover frequency is used as a parameter that allows correcting time response of closed-loop system. The aim of the research is to find proportional, integral, derivative and filter coefficients of PID controller that will provide desired characteristics (phase margin and crossover frequency) in the system. The analytical approach of proposed PID tuning method is presented. The comparison proposed method with conventional was done. Practical approach contains developing the control system of extraction process. This system is a part of Russian Federation large project - closed-loop nuclear fuel cycle. The plant was linearized and digital control system was developed.