Keda Machinery has developed two filtration system for gelatine and collagen purification: cotton plate filter and bag filter. Hydraulic unit is applied in the cotton filter which enables it working fast without stops in the high efficiency way.  It aproves that the filtration system is much better than paper filters in terms of efficiency and operation cost. Not only for gelatine application, the cotton plate filter is widely applied in food and beverage，edible oil, fermented broth, enzymes,sevage treatment.