Note!In position controlled mode, the hydraulic moves the roll to the position setpoint. In pressure controlled mode the hydraulic presses the roll with the defined pressure setpoint to the extruded plastic film. Even if you change the thickness of the plastic film, or when you change the temperature of the rolls, you will get the same forces to the film.Normally you use the pressure controlled mode for the production of very thin plastic films.For changing the gap operating mode, see the following description.