Degaussing Services

Component Degaussing Services


Why is demagnetization important?

Residual magnetism is a common side effect when machining ferromagnetic materials, yet it can cause serious engineering problems. It is also present when components have been lifted using electromagnetic cranes.

Later production processes like electron beam welding for instance can be ineffective on components with high residual magnetism where weld penetration can be significantly reduced in localised areas. Residual magnetism can also impair how in-service components work and wear. So much so that many production standards state demagnetization (sometimes called ‘degaussing’) must be undertaken as part of the finishing process.


Degaussing Services

Johnson & Allen offer Degaussing Services from our head office in Sheffield, UK and have an extensive range of equipment which can be used to demagnetize components. This includes various aperture demagnetizers, coils and power packs suitable for use on everything from small nuts and bolts to larger components like turbines, wheels and extruded structures several meters in length.

There are many variables to consider when trying to achieve successful degaussing; such how the magnetism was induced in the component to begin with, the level of demagnetization being sought and the shape, geometry and material of the component. For those not familiar with the intricacies it can be daunting.


Gauss Problems Solved

Johnson & Allen has decades of experience in demagnetization and can assist any organization in projects where degaussing is required. Johnson & Allen make degaussing easy and can also produce certification as part of the degaussing service which documents the level of residual magnetism remaining.

If documentation is required then please inform us prior to the work being undertaken.

A demagnetization trail is also a great way to assess the effectiveness of our products for a particular application before committing to purchasing your own demagnetizer from Johnson & Allen. Contact our technical sales team through our website, by email or phone to discuss today.