NEODYMIUM RING MAGNETS
NEODYMIUM RING MAGNETS High Performance Ring Magnets Neodymium ring magnets are permanent magnets with a center hole, a distinctive shape, and a uniform magnetic field distribution. Their architecture makes them especially useful in situations requiring accurate magnetic field concentration and efficient magnetic power transfer. Because of their ring form, these magnets may readily merge with other mechanical components and are frequently utilized in motors, speakers, sensors, and other applications. Ring magnets Ring Magnets in Standard Sizes & Custom Options The size of an NdFeB ring magnet has a direct impact on its performance in a particular application. A ring magnet that is too large might cause unstable connections or be challenging to integrate, while a ring magnet that is too tiny cannot offer enough magnetic field strength. Picking the appropriate size is vital to guaranteeing [...]
NEODYMIUM DISC MAGNETS
NEODYMIUM DISC MAGNETS High Performance Disc Magnets Neodymium disc magnets are a form of permanent magnet with a flat, circular shape. They are relatively thin and have a high diameter-to-thickness ratio. Because of their design, these magnets are ideal for delivering consistent and effective magnetic field distribution in various applications, especially those requiring a broader contact area and uniform magnetic force. Disc magnets Disc Magnets in Standard Sizes & Custom Options The size of neodymium disc magnets determines their usefulness for different applications. Depending on the exact application requirements, selecting the appropriate size guarantees optimum magnet performance and avoids problems caused by mismatched sizes, whether too big or too tiny. The diameter ranges typically from 1.00 mm to 70.00 mm (0.04 to 2.76″). The thickness ranges from 0.500 mm to 35.00 mm (0.02″ to 1.38″). [...]
Neodymium Magnet Engineering in Data Storage Systems
Neodymium Magnet Engineering in Data Storage Systems Mechanical hard disk drives (HDDs) are marvels of modern technology, capable of storing vast amounts of data in a space smaller than a book. Inside a mechanical hard drive, there are typically two arc-shaped magnets made of neodymium-iron-boron, also known as neodymium magnets. These are among the strongest permanent magnets available, capable of generating intense magnetic fields. Picture a magnet just a few centimeters in size that can effortlessly lift the equivalent weight of a small dumbbell—that’s the remarkable power of a neodymium magnet! These magnets are positioned above and below the actuator arm, creating a stable magnetic field, much like an invisible track guiding a high-speed train. This field enables precise movement of the actuator arm, allowing the read/write head to locate the correct position on the [...]
Can Magnets Destroy Hard Drives? 5 HDD Facts
Can Magnets Destroy Hard Drives? 5 HDD Facts A few years ago, a technology expert at Forbes.com responded to a reader who had dropped a fridge magnet on his hard drive and wondered if it could do damage. The expert reported that a really strong magnet (with a pull force of at least 450 pounds, so nothing like the type attached to a fridge magnet), could indeed wipe a hard drive. But that kind of force would be dangerous, he said, and it was not recommended. For a business, of course, what’s most important is the confidential data that is stored on hard drives and other electronic devices such as smartphones, laptops, and tablets. Here are some facts and myths about hard drives and e-media security – and protecting confidential data in the workplace. [...]
Magnetic Had Disk Drive
Magnetic Had Disk Drive Computers have a (secondary) storage device called a disk drive, It is where all your apps are stored. There are currently two types of storage device, the magnetic hard disk drive and the solid state disk drive. A computer (unopened) A computer (opened) - Magnetic hard disk shown A working magnetic hard disk drive Magnetic had disk drive labelled Magnetic Had Disk Drive How does it work when I click save? The spindle spins the platter. The actuator arm moves across the platter. Your saved information moves down the actuator arm to the read/write head. The head changes the polarity in a particular sector (an area on the platter - see below) on the platter to either a number of north poles or south poles. Having e.g. North pole, [...]
NdFeB Neodymium Bar Magnets
Neodymium Bar Magnets Available sizes: Length 1–254 mm, Width 0.5–127 mm, Height 0.3–120 mm Largest bar: 254 × 80 × 50 mm; smallest: 1 × 1 × 0.3 mm Grades: N35–N55, plus H, M, SH, EH, AH Size format: Length × Width × Height (e.g., F90 × 3 × 2 mm) Neodymium Bar Magnets (some people may call them rectangular magnets, similar with the neodymium block magnets) have uniform cross-sections much smaller than their lengths, whose sections can be round, square, hexagonal, octagonal, or rectangular. The bar-shaped neodymium magnets are relatively easy to produce using standard techniques. This can make the manufacturing process efficient and cost-effective. Therefore, they are a flexible and versatile option for your product designs and production. NdFeB Neodymium Bar Magnets Features of Neodymium Bar Magnets Neodymium Bar Magnets can [...]
NdFeB Neodymium Tube Magnets
NdFeB Neodymium Tube Magnets Outer diameters: 1.5 – 60 mm (1/16 – 2 1/4inches) Inner diameters: 0.4 – 50 mm (1/64 – 2 inches) Height: 0.3 – 120 mm (1/64 – 4 ¾ inches) Max magnetic direction: 120mm (4 ¾ inches) Neodymium magnet tube are permanent magnet of the tube or cylinder shape with a hole in the center. It has a geometric shape whose height (length) is longer than its diameter. They are popular as one of the basic shapes suitable for use in a range of consumer goods and industrial devices. We can find many of their applications in a variety of products and industries – such as electrical motors, generators, sensors, and magnetic separation apparatus. NdFeB Neodymium Tube Magnets Features The shapes of the neodymium magnets tubes are quite similar [...]
NdFeB Neodymium Block Magnets
NdFeB Neodymium Block Magnets HSMAG supplies custom neodymium block magnets in standard and high-performance grades, from micro sizes to large custom formats. We support no-MOQ orders, fast sampling, medical-capable options, and global delivery. No MOQ — even 1 piece is possible Up to N56 grade for maximum strength in tight spaces Custom sizes from micro blocks to large-format magnets Nickel, epoxy, zinc, gold, PTFE, parylene, and more Cleanroom packaging available for sensitive applications Standard lead time around 25 days, with express shipping often preferred Let HSMAG help you find the right block magnet fast Neodymium block magnets are one of the most practical shapes for real-world use. Why? Because they combine high magnetic strength, flat contact surfaces, and easy integration into assemblies, housings, fixtures, and compact devices. At HSMAG , we produce neodymium block magnets, [...]
Rare Earth NdFeB Neodymium Disc Magnets
Rare Earth NdFeB Neodymium Disc Magnets HSMAG supplies neodymium disc magnets for engineers, buyers, and builders who need dependable holding force in a compact round form. Choose from N35–N56 grades, multiple coatings, and axial or diametric magnetization—with sampling support before volume. High-grade capability (up to N56) — solve high-force requirements when space is tight. Coating options in-house coordination — match corrosion/wear needs without supplier hopping. Tolerance control + repeatable batches — consistent fit across reorders and production runs. Samples first, then scale — validate performance quickly before committing to volume. Neodymium Disc Magnets Sizes (D×T), Grades, Coating Use the table to shortlist models by diameter, thickness, grade, coating, magnetization, tolerance, and estimated pull force. For pricing, choose either Samples or Bulk Quote—same product, two ordering paths. Rare Earth NdFeB Neodymium Disc Magnets Product [...]
Rare Earth NdFeB Neodymium Ring Magnets
Rare Earth NdFeB Neodymium Ring Magnets From micro to large neodymium ring magnets, we quote to your drawing and application: size (OD/ID/H), grade + temperature grade, magnetization (axial/radial/diametric), and coating—so you can validate performance in your real steel and air-gap conditions. OD (1.5–300 mm), ID (0.4–250 mm), Thickness (0.3–120 mm) Grades: N35–N55 + H/M/SH/EH/AH Magnetization: Axial / Radial / Diametric Coatings: NiCuNi / Zn / Epoxy (as needed) Rare earth neodymium ring magnets (NdFeB)—often called magnet rings—are donut-shaped permanent magnets with a center hole for repeatable mounting on shafts, rods, and fasteners. In rotating builds (motors, encoders, speakers, couplings), that repeatable alignment is usually the difference between “works on paper” and stable performance over time—so grade and magnetization need to match the real assembly. A quick production lesson: grade is a material spec, not a [...]
Grade N55 Neodymium Magnets
Grade N55 Neodymium Magnets Higher strength – 5–6% stronger performance than N52 magnets. Precision use – Ideal for magnetic sensors and magnetic switches. Miniature fit – Best choice for tiny magnets and small robots. Durable design – Resistant to demagnetization, heat; coating protection required. We are proud to offer N55 Super Magnets to our customers. This is not because all magnet factories can produce. Rather, it is smaller in size and stronger in magnetic force than N52. Its performance is 5%-6% higher than that of N52 magnet. For precision applications such as magnetic sensors, magnetic switches, etc., N55 is the best choice. Due to its strong magnetic field, the N55 is ideal for making tiny magnets and tiny robots. Like other N-series neodymium magnets, N55 magnets are resistant to demagnetization and heat. And coating is [...]
Grade N54 Neodymium Magnets
Grade N54 Neodymium Magnets N54 neodymium magnets are the industrial grade of NdFeB magnets with the highest magnetic energy product ((BH)max) currently available for mass production. According to the Chinese national standard (BG/T 13560-2017, Sintered NdFeB permanent magnets), N54 has the highest maximum energy product ((BH)max) of 51 to 55 MGOe and remanence (Br) of 1.45 to 14.9 kG. Since there is no unified standard internationally, manufacturers and customers in some regions also use “N55 neodymium magnets” as the name. Definition of N54 magnet. I know that some customers are not very good at reading the “performance ID card” of magnets. Usually the grade of magnets is written in the format of: “First letter + number + suffix letter” First letter: indicates the material of the magnet, for example: “N” stands for neodymium, “C” stands [...]
