Ferrous Metal Detection Sensors are Built with Reed Switches

In heavy machine automation, where the use of magnets is impractical due to the presence of bulky ferromagnetic components, Reed Switch-based ferrous metal detection sensors offer a cost-effective solution. These sensors play a crucial role in detecting the presence of ferrous parts without the need for bulky magnet assemblies.

The construction of ferrous metal detection sensors involves positioning multiple magnets in close proximity to the seals of reed switches. Individually, these magnets lack the strength to generate sufficient magnetic flux to close the reed switch.

However, when brought near a ferrous part, the magnetic flux lines pass through the ferrous material, amplifying the magnetic field generated by the magnets. This amplified magnetic field effectively closes the reed switch, signaling the presence of the ferrous part.

One of the key advantages of this design is that it does not compromise the current carrying capacity of the system. As a result, a variety of reed switches with different power-switching capabilities are readily available to suit various application requirements. Ferrous metal detection sensors find wide-ranging applications, from pick and place units to sensing steel doors in factories and cargo. Their versatility and reliability make them indispensable components in automated systems where precise detection of ferrous materials is essential for optimal performance and safety.

In summary, Reed Switch-based Ferrous metal detection sensors offer a practical and efficient solution for heavy machine automation, where the presence of ferrous parts necessitates accurate detection without the use of bulky magnets. Their simple yet effective design, coupled with their versatility and reliability, makes them invaluable tools in a diverse array of industrial applications.

Application Classification

Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.

Magnet Biasing Type

Some special field applications, for the sake of circuit logic, security concerns, or a power saving necessity, require a sensing signal Continue reading -> Sep 29, 2024

Recommended Products

The Reed Switches and Sensors used in such Ferrous metal detection applications need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.

Standard Ferro-magnetic Metal Detection Sensor, FM-328

FM-218 Metal Detection Sensor Drawing starFeaturesActuates with Any Ferrous Metal. 10W Contact Rating. Normally Open contact. Continue reading -> Sep 28, 2024

Miniature Ferro-magnetic Metal Detection Sensor, FM-324

FM-324 Miniature Ferro-Magnetic Metal Sensor Drawing starFeaturesActuates with Any Ferrous Metal. 10W Contact Rating. Normally Open Continue reading -> Sep 28, 2024

Close Differential Reed Switch, MC-1425

MC-1425 Close Differential Reed Switch with Full Length LeadsMC-1425 Close Differential Reed Switch with Cropped LeadsMC-1425 Close Continue reading -> Sep 3, 2024