Just today I spoke with a customer who is threading the ends of pipes and needs to blow the coolant and chips out of the threads. The pipes range from 4″ to 9 – 5/8″ Diameters. They are all threaded then fed into a trough and pushed down line to the next operation.
The photo above is not the exact machine but you can see where if this was used to process piping the different diameter pipes would all sit at the same level. One option could be to use a Super Air Wipe for this application but then the smaller diameters would not pass through the center of the Air Wipe, instead they would pass through the bottom half of the airflow which may not give optimal performance. Instead, I suggested to use 4 of our 6″ Super Air Knife kits and 2 of our Electronic Flow Control units.
I suggested that we make two pairs of knives for this blowoff setup by coupling two of the 6″ Super Air Knives together. Once they are coupled together like is shown above, we could mount the two coupled air knives vertically along the trough and blowing at a 45° angle toward the center of the conveyor. The plumbing of the two bottom knives will be to one EFC while the top two knives will be plumbed to the other. The sensors will then be set up at two different heights, lower knives to sense the bottom of the pipe and the upper knife sensor will be set just above the bottom 6″ knife.
The reason for using 4 – 6″ Super Air Knives and 2 EFCs instead of 2 – 12″ Super Air Knives and 1 EFC is to save the most compressed air possible. By enabling them to turn the top two 6″ Super Air Knives off automatically when they are running below a 6″ diameter pipe. Then when a larger pipe is processed the top knives will also kick on with the lower knives and provide a uniform blowoff of the product.
So if you have multiple sizes of product being processed on the same line and don’t think any one solution will work, contact us and see if we can’t come up with our own recipe.