Spray vs. Immersion Washing

Spray immersion washing

Immersion washer or spray washer? When deciding which aqueous parts washer best fits your needs, you must choose from these two types. How do you know which method is the best for you? This is all dependent on the complexity of the part that needs cleaning, its resistance to heat, the material, production rates, and the contaminant. For example, if your part has a lot of exposed surfaces and no nooks and crannies, a spray washer is your best bet. On the other hand, immersion washing would be better if your part is more complex with non-visible surfaces. 

Immersion Washing 

Immersion washing is a cleaning process that requires the complete submersion of your component. These washers are typically used for more complex parts that need longer soaking cycles to remove contamination. After you place pieces in a basket, they are submerged in a heated aqueous cleaning solution using a single or series of dip tanks. Sometimes though, immersion itself is not enough. Better Engineering can add agitation and ultra-sonic cleaning to ensure your parts’ cleanliness. Immersion washing does have its limitations that you must consider. Compared to spray washing, immersion washing is a longer cleaning cycle, requiring you to change the solution more frequently since it will become contaminated. Aqueous parts washers can also combine spray cleaning with immersion cleaning. When using this combination of cleaning, Better Engineering places spray washers along the sides of immersion washers to provide additional agitation and cleaning, reducing the time needed for immersion cleaning.  

Spray Washing 

Spray washers use a strategically placed high-pressure spray to clean the entire surface of your part while ensuring it still meets strict cleanliness specifications. These can be stationary or on a moving bar with spray nozzles attached throughout the cleaning chamber’s bottom, sides, and top. You can run spray washers at lower temperatures and cleaning concentrations, which help with cost savings. Spray washers are best for parts with no notches and don’t need longer clean times. Unlike immersion washers, they flush contaminants away immediately to an external filtration system before being recirculated to the spray nozzles.  

Immersion Spray Washers

Sometimes, you need the power of both spray and immersion to clean your components thoroughly. These systems, such as our drum and rotary washers, allow for an unparalleled clean. They not only soak and agitate the cleaning solution around parts but also uses high-pressured spray while immersed. 

Aqueous Parts Washers 

In conclusion, the cleaning technique best suited for you depends on the type of part you need to clean. Both immersion and high-pressure spray cleaning are efficient methods with advantages and disadvantages. All of Better Engineering’s aqueous parts washers are highly effective and modular. This modality means that you can customize our washers with any cleaning method combination and size washer.  

Are you still weighing your options? Send us your parts for testing, and we’ll help you determine which method would suit your applications best.  



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