Hydraulic screen changer can be divided into single plate double station hydraulic screen changer, single column double station hydraulic screen changer, double plate double station screen changer and double column double station screen changer.
  The working principle of the single plate double station hydraulic screen changer: two detachable filter stations are designed on the slide plate of the single plate hydraulic screen changer. When working, one filter station filters the melt inside the main body, and the other one station is reserved outside the main body (there is a stainless steel heating rod on the slide plate for heating and heat preservation to ensure that the temperature is similar to the production temperature). When the impurities on the filter screen accumulate to a certain level during work, the screen needs to be changed, and the operating handle button on the hydraulic station can be pressed to start the energy storage hydraulic station to perform the screen change action.
  The working principle of the double plate double station hydraulic screen changer: the two filters of the double-plate double-station screen changer work at the same time. When the screen needs to be changed, the hydraulic station can be started to change the screen. The screen works, one screen is replaced, two screens are exchanged to replace the screen, through the introduction and exhaust device, the air in the flow channel is exhausted to achieve non-stop screen replacement, no material leakage, no material flow interruption, and small fluctuations in material pressure. Small impact, good continuity of production requirements.