... to 200 tons. Function:Flour milling 1. Our company is hammering at the D&R and manufacture of grain machine and flour equipment ... machinery are similar, but only one is different,that is the ground sifter one, its sifter is placed on the same level with roller mill, ... and the support frame structure one, sifter is set up on the upper of mill, that is to say, the stocks pass through the sifter, ...