What is the Magnetic Hook?

The magnetic hook is also known as permanent hook magnet, strong magnetic hook that mainly consists of a magnet, a steel case and a hook. The gap between magnet and casing is filled with plastic spacer or epoxy depending on the process, Inteal or exteal thread hole is available on the casing for the purpose of hook fixation. The magnet is insert into the casing and fixed firmly in the center of the casing by glue. After curing for several hours, use a tension meter to test whether its magnetic strength meets the customer's requirements. Normally the magnetic lines of force distribute freely in the air.

When the magnet is housed by a steel casing, the magnetic lines of force will focus on the working surface which guided by the magnetic circuit. The magnetic strength of magnetic hook is much more than normal magnets as the magnetic lines of forces are much more concentrated than usual once it is attached to the iron plate and in contact with the working surface. That is, the combination of the permanent magnet and the steel casing can optimize the magnetic circuit and enhance the one-sided magnetic force, at the same time, the steel iron cup can avoid the magnet being knocked and broken during the application.

How many parts is the magnetic hook made from?

A magnetic hook is made from several key parts, each serving a specific function to ensure its effectiveness.

Permanent Magnetic Materials: There are various types of magnets used in magnetic hooks, such as NdFeB magnets, Samarium Cobalt magnets, ferrite magnets, and AlNiCo magnets. Each of these magnets is selected based on the specific application and cost requirements. For instance, ferrite permanent magnets are low-cost, while Samarium Cobalt and AlNiCo magnets can function at high temperatures, around 400-500°C. NdFeB magnets are particularly strong and can create the most powerful magnetic hooks, with magnetic forces reaching up to 270 kg at room temperature, and up to 3000 kg (6600 LB) with hooks that include an eyebolt.

Steel Casing: The casing surrounding the magnet is typically made of steel, with surface treatments such as zinc (Zn) or nickel (Ni) coatings. The production process can involve either lathing or stamping. The stamping process, although more cost-effective, requires specific tooling and is suitable for bulk orders. On the other hand, lathing provides higher dimensional accuracy and is typically used for products with specific size requirements, particularly magnetic hooks with larger diameters. Steel casings can also feature internal or external thread holes depending on the design.

Hook: The hook itself is usually made of steel, and its size can vary depending on the specifications of the magnetic hook.

Filling in the Gap: The gap between the magnet and the steel casing is typically filled with a plastic ring to secure the magnet in place. For larger magnetic hooks, sometimes brass is used. In some cases, epoxy resin is used to fill the gap, ensuring that the magnet is firmly fixed in the center of the casing, allowing for the maximum magnetic force to be utilized.

Feature of Magnetic Hook

Magnetic hooks offer a combination of strong magnetic force and compact size, making them highly efficient for a variety of applications. The strong magnetic force is concentrated on the working side, while the other three sides remain almost free from magnetism. This design makes the magnetic force several times stronger than that of other magnets of the same size, ensuring powerful holding capabilities.

The internal magnet is well-protected by the steel casing, which prevents damage and helps maintain the magnetic strength over time, thus extending the service life of the hook. This design ensures that the magnet remains intact and functional for long periods of use.

Magnetic hooks are highly versatile, capable of being moved or repositioned easily on metal surfaces. Their structure is simple yet effective, and custom-made options are available to suit specific needs. Installation is straightforward—simply attach the hook directly to a metal surface or any magnetic area. The best part is that these hooks don’t require any drilling, leaving the walls or surfaces undamaged while providing a strong, reliable hold.

Magnetic Hooks Application 

Magnetic hooks are widely used in fields of industrial, medical and living. For example, daily applications like hanging bird cages, bags, clothes, key chains, lamps, door suctions and fixing portable paper, notebooks, models arms as well as used as display stands in warehouses and stores.

The classification of Permanent magnetic hook

According to different classification methods, there are many types of magnetic hooks.

1. According to the permanent magnet materials used: Those using rare earth permanent magnets are called rare earth permanent magnet hooks, Using ferrite permanent magnet is called ferrite permanent magnet hook, Alnico magnetic steel is called alnico permanent magnet hook. The rare earth permanent magnet hook also can be divided into Nd-Fe-B permanent magnet hook and SmCo permanent magnet hook.

2. According to the casing material, they can be divided into stainless steel magnetic hooks, plastic magnetic hooks, rubber magnetic hooks, etc. The advantage of rubber magnetic hooks is that it can effectively prevent scratches on the working surface while the disadvantage is that the magnetic strength will be lower than other types of magnetic hooks. According to the casing material, they can be divided into round magnet hooks, rectangular magnetic hooks, strip magnetic hooks, big-size magnetic hooks and small-sized magnetic hooks. They can also be called black magnetic hooks, white magnetic hooks according to their painting color and heavy-duty magnetic hooks, industrial magnetic hooks, etc., according to the magnetic strength
3. According to different application, magnetic hooks are called refrigerator magnetic hooks, magnetic hooks for fridge, magnetic hooks for fridge, magnetic hooks home depot, magnetic key hook, magnetic ceiling hooks, magnetic utility hook, magnetic kitchen hooks, magnetic wall hooks, decorative magnetic hooks, magnetic hooks for cruise cabins, magnetic tool hooks, magnetic hooks for curtain rods, magnetic hooks Officeworks
   magnetic clothes hooks

About Mag Spring and Magnetic Hook :

About Mag Spring and Magnetic Hook:

Mag Spring offers a broad range of magnetic products, including pot magnets and magnetic hooks, with an impressive variety of 73 series and a total of 470 standard items, making it a reliable supplier for nearly all of your magnetic needs. The company operates across a spacious 23,000㎡ manufacturing and warehousing facility, ensuring the capacity to handle both bulk and smaller orders. For some items, small quantity orders can even be shipped within 48 hours.

Mag Spring is supported by a robust independent R&D center that drives their continuous innovation in magnetic technologies. The company utilizes professional equipment capable of testing magnetic forces even under high working temperatures of up to 200°C. Their comprehensive management systems—including SAP, PLM, and MES—ensure effective quality control and streamlined manufacturing processes.

The company has built stable long-term relationships with suppliers of raw materials and accessories, some lasting over 20 years, contributing to the consistency and quality of their products. Additionally, Mag Spring has earned a range of prestigious international certifications, such as ISO 9001:2015 QMS, ISO 14001:2015 EMS, and BSCI, highlighting its commitment to quality, environmental sustainability, and social responsibility.

Magnetic Hooks:
Mag Spring's magnetic hooks are engineered for strength and reliability, providing strong holding power for various applications. The product range includes permanent magnetic hooks, which are perfect for everything from industrial uses to home organization. Whether for hanging tools, keys, or other items, Mag Spring’s magnetic hooks are designed to offer ease of use with the security of strong magnetism.