#1 in Marine Magnets
Powerful, corrosion protected magnets for efficient underwater operations.
See our range of magnets below or challenge us with a custom design.
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With Us, You're in Good Company
The Willy 800kg | 1750 lbs is by far the best diving magnet on the market.
Virtually everything you do under water becomes easier with Blumags. The Flipper series are compact and neat, while the Willy series provide power and functionality for more demanding tasks. These magnets make an essential part of a diver's toolkit.
Top quality underwater magnets that are easy to handle and surprisingly powerful. I am particularly happy with the corrosion protection of both the housing and the magnetic surface. I can highly recommend Blumags to any diver.
As a part of our ongoing Innovation Norway project, we are inviting you, dear visitor, to participate in a user survey. Whether you are a customer or not, we want your opinion.
We provide supreme corrosion protection by encapsulating the magnetic core in a Ni-Cu-Ni coating, and a strong and thick epoxy layer on top of that. In addition, the housing is made of stainless steel, ideal for underwater use.
At the heart of our products is the world's most powerful magnetic material - Neodymium. Outperforming all other commercially available materials on magnetic flux and coercivity, this material is the obvious choice when holding force matters.
Any piece of equipment can be firmly mounted directly onto the magnet. The eyenut assembly can be easily removed to provide a clearance hole for your own bolt – and should you need more, the Willy series has two additional holes.
Lars has worked with both theory and practice in the marine industry since 2009. With a background in Naval Architecture, the ocean is his passion.
+47 941 44 473
Emil S. Jahren
Emil finds his motivation in learning new things, and has worked with product design and solving challenges in salvage, offshore and subsea sectors since 2008.
+47 994 42 740
In need of a custom design? We have experience with lots of different magnetic solutions, such as downhole fishing and string magnets or switch magnets.
We love a good challenge. Send us a message and we'll get back to you ASAP, within 24 hours!
Frequently Asked Questions
Can the magnets be shipped by air?
Absolutely, and multiple times too. Our magnets conform strictly with IATA's packing instruction 953, and are NOT classified as dangerous goods when shipped in original tool cases.
Read more about the regulations here (external page). Our magnets, in original tool cases, belong to this category:
"If the maximum field strength observed at a distance of 2.1 m (7 ft) is less than 0.159 A/m (0.002 gauss) or there is no significant compass deflection (less than 0.5 degree), the article is not restricted as a magnetized material."
How is the holding force rating defined?
Every single magnet is tested at the factory to ensure that the holding force is well above the rating. This is measured by pulling the magnet perpendicularly from a 30mm thick, clean mild steel plate.
Out in real life, the holding force will be affected by steel thickness, steel quality, and gap between magnet and steel which may be caused by rust or uneven steel surfaces.
What is the lateral holding force?
There is no definite answer to this, because it depends on the friction coefficient between the magnet and surface. Important factors are paint, marine growth, corrosion, wet or dry. As a rule of thumb, you can assume 20-30% of the normal holding force rating.
Will the magnets demagnetize?
Our magnets don't demagnetize, as long as you keep the magnets below 100 degrees Celsius (212 Fahrenheit) and follow the instructions in the user manual.
Will you do custom designs?
Yes, of course. We control all aspects of the design and magnetic calculations. Send us an e-mail with some specifications, and we'll get right on it.