Often we get questions about safety standards for our lifting magnets. Lifting magnets have a universal standard to which they should subscribe or meet. That standard is the ASME standard B30.20-2010 requires a minimum 2:1 safety ratio between safe working load (SWL) and test load. manufacturer’s have different standards that tend to be higher, most permanent magnetic […]
When purchasing lifting magnets , buyers are inundated with choices, most of which are imports and sold at steep discounts on wholesale sites, big box sites and industrial distributors. Most of these lifting magnets are poorly made, unsafe and utilize inexpensive, shoddy construction materials. In fact, there are many lifting magnets being sold which use […]
Shields’ lifting magnets carry the highest safety ratings in the industry. With a 3x safety rating, the lifting magnets meet and exceed capacity thresholds. In layman’s terms, lifting magnets have maximum rated capacities, all different depending on the size of the magnet. If a magnet has a 660 pound capacity on flat steel and has a 3x […]
Shields Company Lifting Magnets are currently in use with the seismic retrofitting of the Bay Bridged in San Francisco. The Bay Bridge is undergoing the retrofitting in the hopes of bringing it up to current transportation standards. Following the 1989 Loma Prieta Earthquake, in which the East Span of the bridge was damaged, it was determined that […]
A lot of confusion arises from buyers of magnetic sweepers and industrial magnetic products regarding the difference between “Rare Earth” and “Permanent” magnets. Technically, Rare-earth magnets are permanent magnets. The primary difference being that rare-earth magnets are made from alloys of rare earth elements while other permanent magnets are ferrite or alnico.
When manufacturing permanent […]