How plastic lotion pumps achieve precise dispensing

The precise dispensing of plastic lotion pumps is one of their key advantages, as it allows users to control the amount of product they dispense with each pump. 

Metered Output: Plastic lotion pumps are designed with a mechanism that meters the amount of product released with each pump. This mechanism typically involves a piston or diaphragm inside the pump head that moves when the user presses down on the pump.

Dosing Chamber: Inside the lotion pump, there is a dosing chamber or cavity where the product is stored before dispensing. The size of this chamber determines the amount of product dispensed per pump. Manufacturers can design pumps with different dosing chamber sizes to achieve specific output volumes.

Nozzle Design: The nozzle or outlet of the lotion pump is designed to control the flow of the product. Depending on the product's viscosity and desired output, nozzles can be designed as sprays, foams, gels, or streams. The nozzle's shape and size play a role in controlling the product's flow rate and pattern.

Spring Mechanism: Most plastic lotion pumps use a spring mechanism to return the pump to its original position after each use. This ensures that the pump is ready for the next dispensing and maintains consistency in the amount of product dispensed.

Stroke Length: The stroke length refers to the distance the pump head travels when depressed. The length of the stroke is determined by the design of the pump and influences the volume of product dispensed. Shorter strokes typically dispense smaller amounts, while longer strokes dispense larger amounts.

Threaded Closure: Many lotion pumps are equipped with threaded closures or caps that can be adjusted to control the depth of the pump's stroke. By adjusting the closure, manufacturers or users can fine-tune the amount of product dispensed.

Consistency: The design and manufacturing of plastic lotion pumps are engineered to provide consistent and repeatable dispensing, ensuring that each pump delivers the same amount of product, which helps users manage their usage and avoid product wastage.


Lotion pump with clips