When choosing an aqueous cleaner and process it is important to analyze the configuration of the part and the characteristics of the contaminants that are to be removed. Parts can be cleaned in batches or through an in-line system. In-line equipment is characterized by high throughput cleaning requirements. Batch equipment is characterized by low throughput activities, such as maintenance applications or small production processes. The process can be further modified by the addition of immersion and spray-type equipment.
Immersion processes submerge parts into the cleaning solution.
Agitation of the parts during the wash cycle dramatically increases cleaning efficiency and can be achieved with the use of ultrasonics, mechanical agitation, or jetting actions. Agitation promotes the loosening of particulates and increases the effectiveness of the solution detergents. Spray equipment is used to clean parts that are simple in shape, such as car bodies or appliance shells. Parts are sprayed with a cleaning solution. The pressure of the spray is optimized to meet the cleaning requirements.