The machine is studied and developed according to market demand, which filling machine head made by glass tubes( that is piston cylinder) replace stainless steel cylinder. Glass tube has good outlook, transparent visual, environmental protection, no cause chemical reaction with filling material and others advantages. It improves the value of machine, makes new innovation in filling field and gets good acceptance from customers. It is mainly applied in food, medicine, chemical industry and so on. For example, liquid drink, edible oil. Vegetable oil, liquid detergent, disinfectant, and clean sing milk.