... (international patent)2, No need to change the screen, but backflush of rapid pulse by little clean material ... in the machine3,Cleaning area of the filtering screen up to 80%-95%4,No interrupt the ... hr, filtration precision of 40-60 mesh, new screen pressure of 2.5Mpa, material pressure of 7. ... fee for transportation and packing will be borne by users. Technical data Type Screen size L×W (cm)Screen area( ...