Saar side-bag filter with a reasonable structure, good sealing, flow ability, easy operation and many other advantages. Especially the bag side leakage probability is small, to ensure accurate filtering accuracy, and can quickly replace the bag, making the operating costs. Mechanical sand filter inside and outside surface is polished, uniform, easy to clean. Saar also according to customer requirements filter, available with heating jacket in the form of filters, adjustable support stand or hook, to meet different customer.