Industrial parts cleaning systems are designed in many different sizes and configurations, based on the part size, production rate, cleanliness requirements, and dryness requirements of the customer’s part. However, the common factors in all parts cleaning systems consists of a minimum of two (2) main processes needed to clean/dry the parts: 1) wet zone(s) (i.e.: wash & rinse) and 2) blow-off zone. This article will focus on the drying process incorporated into a parts cleaning system.
In most cases, the next manufacturing operation, after cleaning the part, usually dictates the dryness requirement of the part. How the part gets dry depends on multiple factors, such as: 1) part material, 2) part design, 3) temperature of the solution used to clean the part, 4) amount of time the part is exposed within the blow-off zone, and 5) potential use of compressed air to blow moisture out of blind/tapped holes on the part. Not all parts will need to be completely dry upon exiting the cleaning system. Only once all the information on part dryness is obtained from the customer, can the type of blow-off system be determined. There are three (3) blow-off designs that could be used: ambient, regenerative, and heated.