FaQ about Magnets and Services

In this section we have grouped together all the most frequently asked questions.
You can also read our in-depth articles related to specific topics.

MAGNETS

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This is a tough question, since the determining factor is the intended role of the magnet. Ferrite magnets, although weaker, are surely cheaper, while neodymium magnets are stronger and therefore more expensive. Read More in a dedicated article

This value indicates the pull force of the magnet expressed in Kg. It defines the maximum possible weight that the magnet can hold before detaching. The values you can find for Magnets on SuperMagneticShop assume a single magnet, at room temperature, adhering perfectly to a smooth steel surface. All calculations are approximations. Contact our team for further clarification and to choose the right magnet for your application.

The best practice is to slide one over the other; we advise against trying to pull them apart vertically, since you may hurt yourself or damage the magnets.

You can successfully use magnets on non-ferrous materials with the help of bioadhesive tape, glue or screws. You just put one magnet in place and use another of opposite polarity to make them safely stick together.

Oxidation, electric discharges and high temperatures (always follow our guidelines) are some of the main factors that can damage a magnet and cause a loss of magnetization. If you want to know more about that and learn how to properly store your magnets, you can read our complete guide: Loss of Magnetization and Demagnetization of Permanent Magnets

Standard Neodymium Magnets have a maximum working temperature of 80°C. This threshold is 250°C for Ferrite Magnets, 350°C for SmCo Magnets and 650°C for Alnico Magnets. There are also specially treated Neodymium Magnets with working temperatures above 100°C.  Have a look at our HEAT RESISTANT MAGNETS. You can also read our complete guide:

Permanent Magnets and Heat Resistance: the best magnets to use

You can choose between zinc, nickel, gold, and black epoxy.
If the magnet has to come in contact with the skin, the zinc coating is best. This guarantees that the magnet is nickel-free. Otherwise, the differences between zinc or nickel coated magnets are just minor and cosmetic, the nickel being shinier and smoother. Gold and black epoxy coatings offer a different color than the standard gray.

In Magnet Therapy the magnetic field of permanent magnets is used for many therapeutic applications. All based on the principles of Biomagnetism. Discover our MAGNETS FOR MAGNET THERAPY or read more in our dedicated article:

MAGNETS, MAGNET THERAPY AND BIOMAGNETISM: THE COMPLETE GUIDE

In Magnet Fishing, powerful Neodymium Magnets are used to recover objects from the bottom of the sea, lakes and rivers. All you need to get started is one of our MAGNETS FOR MAGNET FISHING! Read more in our dedicated article:

MAGNET FISHING AND THE BEST MAGNET TO USE: THE FULL GUIDE

Magnets come off easily when glued with regular glue, which tends to crumble. We always recommend using our two-component MAGNET GLUE. We tested many solutions but this proved to be the most effective and long-lasting glue!

Neodymium magnets are delicate and you shouldn’t expose them to temperatures above 80°C or humidity. Ferrite Magnets are more resistant to heat, water and corrosion.

Avoid keeping strong magnets close to each other for long periods of time. If you need to store multiple magnets together, place them in stacks facing the same way. Permanent magnets are quite fragile, strong impacts can break them or cause a  in loss of performance.

Read more in our dedicated article:
LOSS OF MAGNETIZATION AND DEMAGNETIZATION OF PERMANET MAGNETS

Axial magnetization means that the disc or ring is magnetized through its depth or height, and the poles are located on the flat surface. Diametrically magnetized means that the magnetic axis runs through the diameter, and the poles are located opposite along the lateral surface. Example of axial magnetized magnet:

Axial Magnetization, Neodymium magnets

Usually, our magnet discs or rings are axially magnetized. It means that the magnetization vector is parallel to the cylinder’s central axis (from top to bottom).

We can also produce diametrically or radially magnetized magnets. In this case the poles located on the curved surface of the cylinder.

In rectangular magnets (blocks) the poles are located on the largest surfaces: the ones at the top and bottom in the reference images.

Should you need a magnet from our catalog to be magnetized differently, please contact us with your request!

A marked magnet has a red or black dot on the relevant pole. This way the client knows the correct polarity and it becomes easier to assemble the magnets together (north against south).

Magnetization is obtained through an electric discharge inside the magnetizer. The side from which the electricity enters the magnet becomes the north pole, the exit side becomes the south one.

Yes, they do. The difference is so negligible, that we can safely say that the adhesive force is the same.

NEODYMIUM MAGNETS

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Neodymium Magnets are the Strongest commercially available Magnets. But even among Neodymium Magnets there are different levels of strength, represented by their Grade. Higher values mean stronger magnets. For reference, a small N45 3 x 2mm Neodymium Disc has a strength of attraction of 0,18 Kg, whereas a N48 Magnet of the same size has 0,25 Kg (39% more !!!).

You can read more in our article: How strong is a Neodymium Magnet?

These attributes stand for the magnetization grade.

It tells the adhesive force of the magnet; the higher the number after the N, the stronger the force.

You can read more in our article: How strong is a Neodymium Magnet?

 

Without special treatment, neodymium magnets can withstand a maximum temperature of 80°C. Ferrite, AlNiCo and SmCo magnets are naturally more resistant to high temperatures; however, we can also produce neodymium magnets that can be safely used up to 200°C. 

You can read more in our dedicated article: Permanent Magnets and Heat Resistance: the best magnets to use

All these acronyms indicate the maximum temperature a magnet can withstand before permanently losing some of its magnetization. One of these letters can be placed after the grade of the magnet to indicate its resistance to demagnetization. An example for a magnet with an “M” resistance is N35M, generally means that a magnet can be used in an operating environment up to 100°C.  An “H” magnet performs ok up to 120C, “SH” up to 150C, “UH” up to 180C, “EH” up to 200C, and a “TH” up to 220C.  These are general specifications and other factors do play a role in coercivity decisions. 80 degrees Celsius is the standard limit (no acronym in the product page), but on request we are also able to produce magnets with higher heat resistance.

We advise against cutting neodymium magnets. Being made by extrusion and of powders, they are very prone to damage; moreover, the magnetization could be lost. After you cut a magnet, the polarity will invert where the cut is made.

Neodymium magnets rust easily, therefore it is very risky to use them in humid environments if not adequately protected. The solution to this problem is to use plastic-encased magnets or resin-coated pot magnets. On the other end Ferrite Magnets are very resistant to corrosion, oxidation and humidity.

Under usual circumstances, neodymium magnets lose 1% of their magnetism each year. If, on the other hand, they are exposed to higher than recommended temperatures (the standard in 80 degrees Celsius), or to electric discharges (galvanic bath), they can likely lose their magnetism altogether. In a theoretical scenario where 10 magnets undergo the same stress, it is not guaranteed that all of them will become unmagnetized, but is very likely that a good portion of them will.

You can read more in our dedicated article: Loss of Magnetization and Demagnetization of Permanent Magnets

The price of the required raw materials fluctuates rapidly, therefore the price of the magnets in our shop can change rapidly and considerably in a short amount of time according to the current market situation.

Go to our dedicated article: Neodymium Magnets: The Complete Guide

FERRITE MAGNETS

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Ferrite magnets are made of two different iron alloys: with strontium or with barium.

Ferrite magnets are widely used in souvenirs and gadgets, magnet therapy and in the speaker manufactory.

It is a common misconception that ferrite magnets are cheaper than neodymium ones.
Having less adhesive force, in order to reach the same one as a neodymium magnet the ferrite magnet will have to be quite bigger, raising its cost.

A Neodymium Magnet is on average 7 to 12 times stronger than a Ferrite Magnet of the same size. This depends on the grade of the neodymium magnet (from the standard N35 to the strongest N56). You can read more in our article: How strong is a Neodymium Magnet?

Go to our dedicated article: Ferrite Magnets: the Complete Guide

PLASTOFERRITE

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Plastoferrite is a type of magnetized rubber band made of 90% barium- or strontium-ferrite and 10% of thermoplastic components.

Usually it is used as fridge gasket, as support for flyscreens, as advertisement billboards, as support for lightweight but cumbersome materials, for magnetic labels, as magnetic board or as magnet for gadgets and souvenirs.

We advise against such practice, since the Neodymium would make the Ferrite lose his magnetization, therefore becoming useless.

MAGNETIC SYSTEMS

pot magnets and magnetic mounting systems faq

A pot magnet (also known as a magnetic base) consists of a permanent magnet encased inside a heavy-duty iron or steel pot shell.

Raw permanent magnets — especially powerful neodymium types — are naturally brittle and vulnerable to shocks, moisture, and extreme temperatures. The metal casing acts as a protective armor, with the added function of concentrating the magnetic field onto a single surface to dramatically boost the magnet’s holding power.

Because raw magnets cannot be welded or easily drilled, the pot magnet design serves as an incredibly versatile tool. The durable metal shell allows for the seamless integration of various mounting hardware. Depending on your needs, pot magnets can be equipped with threaded studs, hooks, eyelets, or internally threaded bushings. Magnetic rings can be used so that the metal pot can feature countersunk holes, through holes, or threaded holes. This allows for incredibly versatile applications across multiple industries.

Specialized, completely waterproof casings are also available, allowing these magnetic systems to perform reliably in high-humidity or underwater environments. The base can be fitted with a rubber coating to reduce slipping and ensure better grip on very smooth surfaces.

A threaded stud magnet features a built-in bolt extending from a durable iron pot where the magnet is encased. It’s a convenient fastening system for holding a magnet firmly in place.

Depending on the industry or application, these products are also frequently called:
• By component design: Threaded pin magnets, threaded stem magnets, threaded bar magnets, threaded rod magnets, magnets with integrated bolt, or magnets with integrated screw.
• By functional use: Screw-in magnets, screwable magnets, magnets for screw mounting, assembly magnets, or holding magnets.

A threaded stud magnet can be easily screwed into a tapped hole or you can pass the stud into a through hole to secure it with a standard nut. Once mounted, the exposed magnetic face securely holds tools, signs, or machinery against ferromagnetic surfaces like iron and steel. Studs are available in standard metric thread sizes (such as M4, M6, and M8) to match your specific needs.

A magnet with threaded hole consists of a permanent magnet ring with a threaded metal component (usually steel or brass) permanently embedded directly into the central hole. Unlike standard raw ring magnets, which are prone to cracking if you tighten a bolt against them, this design relies on the core metal insert to safely fix the magnet.

Depending on the industry or application, these products are also frequently called:
• By component design: tapped hole magnets, magnets with threaded through hole, magnets with internal thread or magnets with threaded insert.
• By functional use: magnets with hole for cap screws, screw-on magnets, screwable magnets, magnets for screw mounting or magnets with hole for bolts.

The threaded hole, also called a tapped hole, is used to fasten the magnet to a surface or other component using cap screws, bolts or threaded studs.

The magnet can be safely assembled and disassembled without risk of damage, remaining securely in place while performing its function.

Here some simple applications for these Screw-on Magnets:

Magnetic Tool Holders: Fasten your magnet onto a threaded stud or secure it with a bolt to keep your workshop organized. It easily holds heavy working tools like screwdrivers, wrenches, and pliers right where you need them.

Magnetized Bases: Mount a powerful magnet onto non-magnetic surfaces—such as wood, drywall, plastic, or aluminum—using standard M3, M4, or M5 screws. Once installed, this base reliably secures ferromagnetic objects like doors, signs, display boards, frameworks, and spotlights.

Industrial & Manufacturing Use: These versatile hardware components have countless industrial applications. With their central through-hole design, they can be easily and securely attached to machinery, assembly lines, or custom fixtures wherever a strong, reliable hold is required.

Countersunk Hole Magnets feature a specialized hole designed for seamless screw mounting. They perfectly fit flat-head and countersunk screws in sizes M1, M2, M3, M4, and M5. The wider top opening allows the screw head to sit flush, creating a perfectly smooth, flat surface, while the narrower, unthreaded through-hole ensures a secure hold.

Depending on the industry or application, these products are also frequently called:
• By component design: countersink hole magnets, CSK hole magnets, C’SINK hole magnets, conical hole magnets, counterdrill magnets, beveled hole magnets, chamfered hole magnets.
• By functional use: magnets with hole for screws, screw-on magnets, screwable magnets, magnets for screw mounting, assembly magnets, or flush-mount hole magnets.

Magnets with Countersunk Hole are useful when you need to fix a magnet to a non-magnetic material (like plastic or wood) or if you need to hold them very firmly in place. You can simply secure them with a screw.  The countersunk hole allows the screw head to fit perfectly flush.

Here some simple applications these Screw On Magnets:

Magnetic tool holder: screw your magnet onto a wooden board or to the wall,  then you can use it to hold your working tools (like screwdrivers, wrenches and pliers);

Magnetized doors: fix the magnet with a screw to the door or to the frame of a cabinet. On the other side there should be an iron counterpart. These allows the doors to stay shut while being easy to open when needed. 

Industrial use: magnets have countless applications in industry and manufacturing. These magnets can be easily and securely attached wherever needed.

A screw socket magnet features a built-in internally threaded stud extending from a durable iron pot where the magnet is encased. It’s a convenient fastening system for holding a magnet firmly in place.

Depending on the industry or application, these products are also frequently called:
• By component design: Threaded bushing magnets, threaded socket magnets, magnets with female threaded stud or, magnets with female threaded neck.
• By functional use: Screw-on magnets, screwable magnets, magnets for screw mounting, assembly magnets, or holding magnets.

These versatile screw-on magnets can be easily screwed to any compatible threaded support like threaded rods. They can also be fixed in position using screws or bolts. Once mounted, the exposed magnetic face securely holds tools, signs, or machinery against ferromagnetic surfaces like iron and steel. Bushings are available in standard metric thread sizes (such as M4, M6, and M8) to match your specific needs.

A hook magnet features an open, curved hook attached to a durable iron pot where the magnet is encased. It provides a magnetic anchor point, allowing you to easily hang and organize items without the need to drill into walls or use adhesives.

Depending on the industry or application, these products are also frequently called:
• By component design: Magnetic hooks, magnets with hooks, open-hook magnets, magnets with hanger.
• By functional use: Hanging magnets, anchoring magnets, utility hooks, or ceiling hook magnets.

A hook magnet attaches to any ferromagnetic surface, such as steel beams, metal cabinets, refrigerators, or warehouse shelving. Once the magnetic base is firmly in place, the open hook provides an anchor point for hanging tools, cables, signs, clothing, or decorative lights.

An eyelet magnet features a ring-top (the eyelet) attached to a durable iron pot where the magnet is encased. It provides a secure anchor point for ropes, cables, hooks and snap-hooks, without the need to drill into walls or use adhesives.

Depending on the industry or application, these products are also frequently called:
• By component design: magnets with closed hook, ring-top magnets or, magnets with mounting ring.
• By functional use: Tethering magnets, cable management magnets, or magnet fishing pots.

An eyelet magnet attaches to any ferromagnetic surface, such as steel beams, metal cabinets, refrigerators, or warehouse shelving. After placing the magnetic base onto a flat iron or steel surface, you can thread ropes, cables, or zip ties directly through the loop, or clip into it securely using a carabiner or padlock.

Yes they are. We always provide our customers with half and half polarities to guarantee that, no matter the final usage, the magnets can be made to stick together or against a metal surface without issues!

DELIVERY AND RETURNS

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Shipping costs are determined by the country of delivery and the weight of the package. The cost will be calculated automatically at checkout. You can find all the details and fees associated with each country on the page: SERVED COUNTRIES AND SHIPPING COSTS

We aim for same-day dispatch for all orders placed before 12pm (Monday to Friday, excluding holidays and business closures). Should you choose to pay via bank transfer, we must wait to verify the payment in our bank account before shipping the goods.

Standard orders usually take 24/48 to be shipped, except for delays of the courier. The time it takes to receive your order depends on the country of delivery. Our courier usually automatically sends you an email with the tracking number, but please contact us and we’ll provide it to you. Read our estimated delivery times on this page: DELIVERY AND RETURNS TERMS

Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden. We ship internationally to other countries for businesses and large orders, please CONTACT US with your request.

Our packages consist of recycled cardboard and pluriball. Depending on the quantity, magnets can be shipped inside envelopes or one or more boxes.

You can request a refund or replacement. Please feel free to contact us via online chat, email, or phone. You can provide all the details to our support team who will be happy to find the best solution to resolve the problem.

If, for any reason, you wish to return your order or some of the items, according to the consumer right of withdrawal, you can submit your request on the Online Withdrawal Request Page. 

In accordance with this European regulation, the right of withdrawal is limited to retail customers and orders delivered within a maximum period of 14 days. We invite you to read all the details on our Sales terms.

The customer is responsible for return shipping costs.