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Magnetics Services
Magnetizing Fixtures for Magnet Customer Assemblies
Oersted Oersted Technology designs and builds magnetizing fixtures to magnetize customer assemblies where permanent magnets are coupled with some other electronic components or structural elements made of metallic material, non-magnetic steel, magnetic steel, plastics, etc. Some customers need to magnetize magnets and other structural elements at the same time to save manufacturing and energy costs. For example, a customer need to magnetize a ring magnet mechanically coupled with a ring steel. We can design a powerful magnetizing fixture to magnetize that ring magnet with the coupled steel ring ensuring the complete magnetization of the magnet. Another common case is when an audio speaker manufacturer needs to magnetize a ring magnet mechanically coupled to the pole steel structure of the speaker. Generally, speaker manufacturers magnetize the ring magnets and the pole steel structure at the same time to save costs. Furthermore, it would be impossible to magnetize the ring magnet and then center it and attach it to the steel structure of the speaker.
Custom Magnet Assemblies
In many magnetic applications, the use of magnet assemblies is necessary to produced high magnetic fields for different applications. Oersted Technology offers the service of custom permanent magnet assemblies for customer projects. Utilizing the information of the customer, we can build magnet assemblies using different materials and different mounting methodologies. We have experience to propose, to build, and to mount magnet assemblies for different magnetic configurations. We have worked in different projects where magnet assemblies must be utilized as: small particle accelerators, Halbach arrays for different applications, levitation systems, motor configurations, etc.
Prototype and Small Batch Magnetizing
Oersted Technology is committed to providing for all of our customersí magnetics needs. In some cases, a small batch of parts must be magnetized before a cusomerís magnetizer or magnetizing ?xture is completed and shipped. In situations like this, we are able to magnetize prototype parts so that our customers can begin testing of their products immediately.
Assistance to the Speaker Industry
Oersted Technology has a great deal of experience with companies involved in the design and production of audio speakers. We understand the unique magnetics problems associated with magnetizing speakers and are willing to assist you in optimizing the speakerís magnetic structure for the magnetizing process (by reducing eddy currents in the basket structure, for example). We have designed and built C-frame magnetizing ?xtures for magnetizing large ferrite car audio speakers and are now using a new method of ?xture design that greatly reduces heating (thereby allowing for a faster cycle rate). If you are currently magnetizing your parts manually, Oersted Technology can create an automated magnetizing system that will allow you to increase your production rate and save on labor costs.
Magnetizer Characterization
Oersted Technology provides magnetizer characterization and safety evaluation services to companies who need technical information for an existing magnetizer or group of magnetizers. These services are performed on-site in order to minimize magnetizer down-time and to avoid interruptions in production. To properly design a magnetizing ?xture for a given magnetizer, several things must ?rst be known about the magnetizerís operation and electrical properties. This information may have been supplied by the magnetizerís manufacturer, but may not be accurate or may change if the magnetizer is modi?ed. Our tests will give you valuable information about the actual performance and characteristics of your magnetizer, which can then be used to design a magnetizing ?xture that is optimized for it.
On-site Training
If your engineers are interested in learning more about magnetic theory and magnetizer operation, we offer training at our facility and your facility. We also offer on-site training at your facility for a fee. If your company would like to learn more about magnetic topics, we offer on-site seminars customized for your area of interest. Our training tell you how to get the most out of your magnetic test instruments and magnetizing equipment, while also providing an informative look into the ?eld of magnetism.
 
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