The double column screen changer is more suitable for applications such as granulation, PE, PP, PPR, PERT pipes, plates, sheets, cast films, non-woven fabrics, chemical fiber spinning, etc., which require uninterrupted material flow and high continuity during screen changing. What specific measures should be taken to prevent column jamming in the double column hydraulic screen changer? The double column hydraulic screen changer is stuck and requires preparation: 1. 50T split type jack; 2. Activi