Ultra high molecular polyethylene ( English name ) filter press, the molecular weight of up to 30 million, impact strength more than 130 kg / cm2, for the first of the plastic engineering. The service life is 2-3 times higher than polypropylene filter plate, 3 - 9 times higher than the cast iron, and has light weight, fast dehydration, wear resistance, environmental cracking, good stability, high compressive strength, easy to bond with other materials and long service life. The advantages of small loss, flexible operation and convenient maintenance, especially the filter cloth pressing ring, novel and scientific design, can prevent the deformation and cracking of the filter, and can play a reasonable role of dispersing the cloth!