The emulsion pump, also known as the squeeze-type emulsion pump, is a liquid distributor that uses the principle of atmospheric balance to pump out the raw material liquid in the bottle and replenish the external atmosphere to the bottle.
 
The main performance indicators of the emulsion pump: air pressure times, pump displacement, low pressure, nozzle opening torque, rebound speed, water intake index, etc.
 
A typical lotion pump consists of a head, a mouthguard, a cylinder head, a cylinder, a piston rod, a piston, a piston head, a spring, a lower individual valve, a gasket, and a hose. However, not all lotion pumps need to contain These parts, according to specific performance requirements, some parts may be combined or replaced, and then derived various structures of the lotion pump, but the basic principle is roughly the same.

Yuyao Hongda Sprayer Co.,Ltd.,established in 1996,located in Yuyao,a historical city which is close to Shanghai and Ningbo international ports with a superior geographical position.
Over the past 20 years, Hongda company has been devoted to the production of cleaning products,personal care products,perfumes,cosmetics and other packaging products. Also the company has formed a complete industrial chain of R&D, precision mold, automatic equipment manufacturing,injection molding and automatic assembly.
Hongda company has cooperated with domestic and overseas well-known brands to provide them with high quality products, excellent services, complete solutions and get win win on both sides as always.
Hongda based on reality, relying on a fine management to process continuous innovation, to pursuit of high quality,and to promote the sustainable development of the company.