Presented paper deals with problems of discrete simulation within acid pickling lines. These types of lines are complicated mechanical systems required special algorithm for controlling. The paper discussed using of simulation approach both for projecting and controlling of acid pickling lines. Several experiments with the simulation model were performed to verify the production system design. In the paper are only mentioned simulation experiments which balance two alternatives; alternative with one crane, and alternative with two cranes. The key factor to be followed was the throughput (number of produced coils per hour) of pickling line in a steady state.