Also known as a push-type lotion pump, it uses the principle of atmospheric balance to pump out the liquid in the bottle and fill the outside atmosphere with the liquid dispenser in the bottle. The main performance indicators of the foam pump: air pressure multiples, pumping capacity, down force, opening torque, rebound speed, water inlet index, etc.

　　There are two types of glue dispensers: cable tie type and spiral type. In terms of function, it is divided into spray, foundation cream, lotion foam pump, aerosol valve, and vacuum bottle. The size of the foam pump head is determined by the diameter of the matching bottle. The spray size is 12.5mm-24mm, and the water output is 0.1ml/time-0.2ml/time. Generally used for packaging perfumes, gel water and other products. The length can be determined according to the height of the bottle. The size of the emulsion foam pump head is 16ml to 38ml, and the water output is 0.28ml/time-3.1ml/time. It is commonly used in face creams and cleansing products.

　　Special dispensers such as foam pump heads and hand-held nozzles, non-inflated manual pump heads, do not require gas to generate foam, and can use a light press to produce quantitative high-quality foam. It usually comes with a special bottle. Hand-held nozzles are usually used for products such as detergents.

　　The composition of the distributor is more complicated, generally including: dust cover, hoe, mast, gasket, piston, spring, valve, bottle cap, pump body, straw, valve ball (with steel ball, glass ball). The cap and dust cover can be colored, electroplated, or made of electric aluminum ring.

　　Airless bottles are generally cylindrical, with specifications ranging from 15ml-50ml, with 100ml individually. The overall volume is small, relying on the principle of atmospheric pressure to avoid pollution caused by cosmetics during use.

　　Airless bottles have electro-aluminum, plastic plating and colored plastics. The price is more expensive than other ordinary containers, and the general order quantity is not high. Dispensing machine customers rarely open molds by themselves, and the molds they need are becoming more and more expensive.