I recently worked with a manufacturing company who was looking to incorporate a blowoff in their ultrasonic wash, dip tank process to reclaim excess corrosion inhibitor. They manufacturer a variety of carbon and stainless steel parts which are loaded into a 20″ x 13″ basket and lowered into a tank where they dip the parts in a petroleum oil based corrosion inhibitor. The current cycle is controlled by a PLC and the parts baskets are loaded by a robot so they were looking to keep the system as automated as possible.
I recommended they mount an 18″ Super Air Knife on the each side wall of the tank, at a slight angle blowing down into the tank, to recover the excess fluid back into the tank. Since they were planning on operating both knives from one main supply, I recommended they use a pressure regulator to adjust the supply pressure to provide some control over the output flow and velocity so the lighter/smaller parts weren’t disrupted or blown from the basket. In addition, they could incorporate a solenoid valve to provide the needed on/off service while still being able to control the system from their current PLC.
After discussing the application and solution with the customer, their last concern was delivery. With no current blowoff in place, they were wasting a lot of the coating solution as well as causing delays and rejects in the entire process, so providing a readily available solution was critical to their needs. The customer was able to rest easy as all of the products we discussed were In Stock – Ready to Ship same day (with an order received by 3:00 PM EST).
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