Magnetic suction cups, a hybrid of magnetic and suction technologies, are designed to attach to both ferrous and non-ferrous surfaces, providing a secure hold for various applications. Their structure combines a strong magnet (neodymium or ferrite) with a flexible suction cup (usually silicone or rubber). The suction cup creates an airtight seal on smooth surfaces (like glass, plastic, or tile), while the magnet enhances holding power on ferrous metals—making them more versatile than standard suction cups or magnets alone.

Common uses include home and office: mounting phone holders on car dashboards (ferrous or smooth plastic), attaching shower organizers to bathroom tiles, or securing whiteboard markers to glass whiteboards. In automotive settings, they hold GPS devices or dash cams on windshields or metal dashboards. For industrial purposes, heavy-duty magnetic suction cups lift and move smooth metal sheets (like aluminum or steel) in manufacturing, as the suction cup grips the surface and the magnet adds extra stability.

Key benefits are multi-surface compatibility and strong, reliable hold. The suction cup’s airtight seal resists gravity, while the magnet reinforces the bond on metal. However, they require smooth surfaces (porous or rough surfaces break the suction seal) and regular cleaning of the suction cup (dust or dirt reduces effectiveness). Weight capacity varies: small ones hold 1–5 kg, while industrial models handle 50–100 kg. Magnetic suction cups thus bridge the gap between traditional magnets and suction cups, offering a flexible solution for diverse attachment needs.