Abstract: A cleaning apparatus which comprises a spray cleaning arrangement capable of even cleaning of devices. The cleaning arrangement is disposed within a housing, and is directed towards a conveyor belt, which transports the device to be cleaned across the various wash, rinse and drying zones of the apparatus. At least one spray wand is provided for the circulation of a wash fluid having at least one row of holes disposed longitudinally thereacross for releasing the wash fluid onto the device to be washed. The spray wand has a decreasing internal traverse cross-sectional area from one end to the second end such that a substantially uniform internal pressure is maintained between the two ends during washing. The holes on the spray wands are preferably microtunnels which can be disposed at high density along the spray wand. The spray wand can also be rotated such that the direction of spray may be adjusted.