The images above show a molding machine process with a spinning table. The “front” side of the setup is used to remove finished product, while the “back” side forms new product over the stainless steel mold. Each side of the table uses an identical setup with application temperatures as high as 140°F.
The end user of this machine contacted EXAIR in search of a blowoff solution to be permanently installed and operated automatically. Any solution offered needed to use minimal compressed air, meet OSHA safety standards for dead end pressure (OSHA CFR 1910.242(b)), and be suitable for installation in a 140°F workspace.
The purpose of the blowoff would be to remove any debris/residual material left on the stainless steel mold after the finished product is removed. So, as the mold spins back into the machine, they wanted a way to remove any burrs or residual debris. The current process is to stop the machine and have a machine operator blow off the molds by hand (shown below). This reduces the efficiency of the machine and reduces the throughput of the process.
With the full scope of the application uncovered and discussed, we found the perfect solution for this application in a stainless steel Super Air Knife. The stainless steel Super Air Knife can provide an efficient and repeatable blowoff solution, all while meeting OSHA safety standards and the temperature needs of the application. Plus, the Super Air Knife can be configured alongside a PLC or Electronic Flow Controller to allow for a “trigger-on” installation in which blowoff is only provided when needed. This setup saves compressed air, reducing operational cost and further increasing efficiency in the application.
The exact product used in this application was the model 110012SS, which provides a laminar blowoff 12” wide using a 303 grade stainless steel Super Air Knife. But, we also have knives ranging from 3” to 108” with the ability to machine custom lengths upon request. So, if you have an application in need of an efficient and laminar blowoff solution, reach out to us. We’ll be happy to help.