MAFAC Vacuum Activated Purification (VAP)
Tight capillary structures, tortuous channels, deep threaded holes with small cross-sections? A tube meters long with a diameter of just a few millimeters? Plus increased, industry-specific requirements such as residue-free cleaning of medical devices in validated, reproducible processes? That is why we developed MAFAC Vacuum Activated Purification, or in short VAP.
VAP works through specific patterns of negative and positive pressure change in the cleaning bath, thus creating currents that reach and wash through even the narrowest channels. Instead of chemical solvents, only surfactant-based solvents are used. Protecting environment and health makes MAFAC VAP the ideal system for sensitive applications such as additive manufacturing, optics, electrical engineering, laser industry, medical technology, pharmaceuticals and food.
The innovative, patented process works in conjunction with our equally patented technology of rotating the basket and spray system. The basis for highly efficient cleaning is improved media exchange and, as a result, optimized dirt removal. To achieve this, MAFAC VAP uses a sequence of precisely dosed negative pressure. The constant change in pressure creates flow, allowing the cleaning medium to penetrate even the narrowest blind holes. Film and particulate contamination are removed mechanically in a gentle and highly efficient way, with even the finest particles safely eliminated from the process.
If you have ever tried to clean a long, thin drinking straw, you know the problem on a small scale: The inner contours never get hygienically clean, either under the tap or in the dishwasher. This made the cleaning tests we set up for evaluatng the performance of MAFAC VAP even more challenging:
Can a 1.2 meter long, fine hose with an inner diameter of not more than 4 mm be cleaned without any residues left? The striking result, visibly confirmed by a contrast agent: Yes, thanks to the asymmetric flow effect the medium in the tube is completely replaced!