What is spray wash?
Spray washing cleans by directing pressurised cleaning solution at parts through nozzles, combining chemical action with mechanical impingement. It is fast and well-suited to production lines, but it demands low-foam chemistry and it cannot reach shadowed or blind features.
Also called: jet wash, impingement washing
The mechanical component does much of the work, which means a spray washer often cleans faster and at lower concentration than a soak tank on the same soil. Cabinet, tunnel and rotary-basket configurations all exploit the same principle.
Its blind spot is geometry. Anything the jet cannot see — deep blind holes, internal galleries, the underside of a nested part — receives only whatever solution flows past it. Fixturing and rotation matter as much as chemistry.
Foam is the recurring failure. Aerated solution in the pump chamber causes cavitation, pressure collapse and eventually pump damage. This is where a low-foam cleaner such as Power Clean LF, held in its designed temperature window, is not optional.
