MAFAC VAP: Cleaning Industrial Components – dynamic and highly efficient with Pressure-Change

Motion plus pressure-change: MAFAC Vacuum Activated Purification – or VAP for short – is a vacuum-assisted pressure-change process for cleaning demanding components with capillary structures, blind holes, cavities, and complex internal geometries. Developed for applications with high industrial standards and strict regulatory requirements, MAFAC VAP ensures the required level of technical cleanliness – without the use of critical chemicals.
At the heart of the process: the cyclic change of pressure in the cleaning medium within the process chamber. Through the targeted alternation of evacuation and ventilation, of negative and positive pressure, intensive and highly effective flow effects are generated.
MAFAC VAP is ideal for sensitive products and filigree geometries with very high demands on component cleanliness. For validated cleaning of fine capillaries in medical technology, residue-free flushing of delicate structures in optics and electronics, and reliable removal of residues in precision engineering and additive manufacturing.
Technical Highlights for your Process
| • Cyclic pressure change: A targeted sequence of vacuum and overpressure generates intensive flow patterns in the cleaning medium. |
| • Vacuum-assisted process: Pressure changes physically activate the cleaning medium and intensify the cleaning effect. |
| • Capillary-active motion: Controlled air expansion and contraction dynamically guide the cleaning medium through even the finest structures. |
| • Vapor bubble formation and collapse: Local pressure effects support the mechanical removal of filmic and particulate residues. |
| • Geometry-independent cleanliness: Concealed and internal structures are cleaned thoroughly and free of residue. |
| • Gentle media design: Surfactant-based, material- and environmentally friendly cleaners replace critical chemicals. |
Your Advantages with MAFAC VAP
| • Patented MAFAC technology |
| • Active media penetration into capillaries, lumens, and shaded areas |
| • Reproducible cleanliness through defined pressure cycles |
| • Effective particle removal through targeted vapor bubble formation |
| • Designed for complex geometries and the highest cleanliness requirements |
| • Ideal for sensitive applications with strict regulatory requirements |
The Operating Principle of MAFAC VAP (Vacuum Activated Purification)
Tight capillary structures, tortuous channels, deep threaded holes with small cross-sections? A tube more than a meter long with an inner diameter of just a few millimeters? Added to this increased, industry-specific requirements, such as residue-free cleaning of medical devices in validated, reproducible processes? This is exactly why we developed MAFAC Vacuum Activated Purification – or VAP for short.
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 human health makes MAFAC VAP particularly suitable for sensitive applications – for example in additive manufacturing, optics, electrical engineering, the 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. Filmic and particulate contaminants are removed mechanically in a material-friendly manner; even the finest particles are reliably 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 evaluating the performance of MAFAC VAP even more challenging:
Can a 1.2 meter long, fine hose with an inner diameter of just 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!

MAFAC VAP FAQs
Is MAFAC VAP suitable for cleaning additively manufactured or 3D-printed components?
Yes. MAFAC VAP is particularly well suited for cleaning additively manufactured components with complex internal structures, porous surfaces, and hard-to-reach geometries. The pressure-change technology generates deep media flow that conventional cleaning methods often cannot achieve. As a result, support materials and powder residues can also be reliably removed from internal areas.
Can MAFAC VAP be used for industrial cleaning of components with very small bores or capillaries?
Yes. MAFAC VAP is specifically designed for cleaning components with microstructured internal geometries. The cyclic pressure change actively drives the cleaning medium into even the smallest bores, capillaries, and blind holes. Because the physical effect is independent of opening size, even extremely fine structures can be cleaned and flushed reliably.
Can MAFAC VAP be combined with ultrasonic cleaning?
Yes. When combined with ultrasonic cleaning, MAFAC VAP delivers an even higher cleaning performance. While the pressure-change process transports the cleaning medium deep into complex internal structures, ultrasonics generate additional cavitation in the cleaning bath. This enables particulate and filmic residues to be removed effectively and gently, even from the finest geometries and hard-to-reach areas. MAFAC rotating Ultrasonics is particularly effective, as it provides uniform, multidimensional insonation without shadow zones.