The series of manual plate and frame filter presses produced by Cangzhou Yalong Filter Press Co., Ltd. are intermittent solid-liquid separation equipment. They consist of filter plates and frames (plate and frame type) arranged to form filter chambers. Under the pressure of a feeding pump, the material liquid is sent into each chamber, where it is separated from the solid and liquid through filtration by the filter cloth. They are widely used in chemical, dye, petrochemical, ceramic, sugar-making, food, starch, metallurgy, paint, coal sludge, and wastewater treatment in various industries. Product specifications range from 380 to 2000 models, with filter areas from 0.5m² to 2000m²; heat resistance from -20°C to 120°C, and filter liquid discharge methods include open flow, closed flow, washable, and unwashable. The filtration pressure ranges from 0.2Mpa to 2.0Mpa. Yalong filter presses are available in cast iron plate and frame, reinforced polypropylene plate and frame, glass fiber-reinforced polypropylene plate and frame, aluminum alloy plate and frame, stainless steel plate and frame, rubber plate and frame, and stainless steel plate and frame types for selection.