What Is a Magnetic Catch?
A magnetic catch is a device that utilizes the power of magnets to securely hold doors closed. It consists of a magnet and a metal component attached to the door, preventing the door from opening due to wind or other external factors. Magnetic catches come in various types, suitable for different door sizes and absorption strengths, allowing for precise positioning when opening and closing. Cushion-type magnetic catches are also available, providing a bounce-back feature to aid in door operation.
Uses of Magnetic Catches
Magnetic catches are commonly used in household and commercial settings to keep doors of shelves, cabinets, and boxes securely closed. They are particularly useful for storing food or household items, ensuring the contents are protected from exposure and contamination. While they prevent doors from opening unexpectedly, they can still be easily operated by hand.
Principle of Magnetic Catches
Magnetic catches function by the attraction between a magnet and a metal plate. The magnetic unit is typically attached to a box or shelf, while the metal plate is affixed to the door. This setup provides a secure yet moderate magnetic force to keep doors closed, safeguarding the contents inside.
Some magnetic catches are equipped with sensors that detect door movement. These specialized catches can automatically cut off power or halt current flow when a door is opened, enhancing safety by preventing electric shocks during maintenance or repair tasks.