Energy can be expressed in several categories including mechanical agitation, flow rate, spray pressure, and heat. Additionally, the type and quantity of spray nozzles play a major role in determining the amount of agitation produced. Generally, higher horsepower ratings, and a greater quantity of spray nozzles equal more agitation and, thus, more thorough cleaning. The type of spray nozzle is important in determining the machines under-component impingement potential. Mechanical energy should not be limited only to the boards surface, but also to areas under and between components.
Heat is another important factor.
Most, if not all saponifiers require a heated solution. Generally, working temperatures of 140oF - 160oF are common. A saponifier's ingredients include de-foaming agents. Frequently, these de-foaming agents require a narrow temperature band to work effectively. Temperatures must therefore be well regulated during the entire wash cycle.