System for moving a washing/rinsing head in a bin washing/rinsing apparatus for the pharmaceutical industry, the apparatus being equipped with a washing/rinsing chamber adapted to house one of the bins and the washing/rinsing head, the bin being provided with an opening adapted to allow the head to be introduced therein, the system being positioned over the washing/rinsing chamber and comprising: —a flexible tube, to one end of which the washing/rinsing head is connected, the flexible tube being adapted to carry washing/rinsing liquid, fed through a fixed second end of the tube, towards the washing/rinsing head; —a first idle wheel, positioned vertically above the washing/rinsing head, and adapted to cause a first deviation of the flexible tube towards a second idle wheel; —the second idle wheel, positioned laterally relative to the first idle wheel, adapted to cause a second deviation of the flexible tube in a direction substantially opposite to the first deviation; —a horizontal electric axis adapted to slidably house the pin of the second idle wheel; —the first and second idle wheels being adapted to deviate the flexible tube so that it runs along essentially horizontal sections towards the fixed second end; —an electronic controller adapted to cause the pin of the second idle wheel to slide within the horizontal axis, so as to control the vertical position of the washing/rinsing head in the washing/rinsing chamber through the sliding of the flexible tube on the first and second idle wheels.