Plastic lotion pumps are one of the popular dispensing methods for viscous (thick liquid) products in the personal care and beauty industry, in a variety of shapes and sizes. When used as designed, the pump dispenses the correct number of products over and over again. But have you ever wondered what features in the lotion pump make it work? Although there are hundreds of different designs on the market today, the basic principles are the same. The product goes from the bottle to the hand.

In general, a Lotion Pump consists of the following components:


Actuator: An actuator or pump head is a tool that the consumer presses to pull the product out of the container. The actuators are typically made of PP plastic and can have many different designs - and often have a locking or unlocking function to prevent accidental output. This is one of the component designs that allows a pump to be separated from another pump, which is part of ergonomics that plays a role in increasing consumer satisfaction.

Pump ClosureClosure: A component that screws the entire assembly to the neck of the bottle. It is identified by a common neck finishing destination, such as 28-410, 33-400. Usually made of PP plastic, usually designed as ribbed sides or smooth sides. In some cases, a shiny metal casing can be installed to give the lotion pump a high-end, elegant look.

Pump Seal External Seal: The seal is usually secured to the inside of the cap by a friction fit that acts as a seal on the mouth of the bottle to prevent product leakage. According to the manufacturer's design, this outer gasket can be made from a variety of materials: rubber, LDPE is just two of many possible options.

Pump casing: Sometimes referred to as the casing of the pump assembly, this assembly holds all pump components in place and serves as a transfer chamber for sending product from the dip tube to the actuator and ultimately to the user's hand. This part is usually made of PP plastic. Depending on the output and design of the lotion pump, the size of the housing may vary widely. Please note that if the pump is paired with a glass bottle, the width of the bottle opening may not be sufficient to accommodate the outer casing because the side walls of the glass bottle are thicker - please check the installation and function first.

PumpStem / Piston / Spring / Ball internal components (internal components inside the housing): These are components that vary depending on the design of the lotion pump. Some may even have additional components that aid in product flow, while some designs may even have additional housing components that isolate the metal spring from the product channel. These pumps are often referred to as having a "metal-free channel" function in which the product will not Will be in contact with the metal spring - eliminating potential compatibility issues with metal springs.

Pump dip tube dip tube: A long plastic tube made of PP plastic that extends the scope of the wash pump to the bottom of the bottle. The length of the dip tube will vary depending on the bottle that is paired with the pump. Here you can find a three-step dip tube measurement method. Properly cut dip tubes will maximize product utilization and prevent clogging.



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