We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for Permanent magnets.
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Permanent magnets Product List and Ranking from 13 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

Permanent magnets Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. 三菱長崎機工 Tokyo//Industrial Machinery
  2. 二六製作所 Hyogo//Ferrous/Non-ferrous metals
  3. サンギョウサプライ Miyagi//Machine elements and parts
  4. 4 ティー・テクノロジー Saitama//Trading company/Wholesale
  5. 5 トーキン Tokyo//Electronic Components and Semiconductors
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Permanent magnets Product ranking

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. Magnetic Separator: The Difference Between Electromagnets and Permanent Magnets 三菱長崎機工
  2. Case Studies of Magnet Troubles: It Broke! 二六製作所
  3. Neodymium magnet grade N40 round type サンギョウサプライ
  4. 4 Free distribution of the 'Permanent Magnet Products Comprehensive Catalog & Latest Inventory List' by Niroku Seisakusho. 二六製作所
  5. 5 Permanent magnets *For retailers and wholesalers 二六製作所

Permanent magnets Product List

1～15 item / All 35 items

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Case Studies of Magnet Troubles: It Broke!

Case Studies of Magnet Troubles: It Broke!

It's broken!

There is a possibility that it may break due to impacts such as suction or dropping. In particular, neodymium magnets and samarium-cobalt magnets have strong magnetic forces, and if they are attracted with too much force, there is a high risk of damage, so care must be taken when handling them. Please be careful not to attract nearby magnetic materials immediately after removal. Additionally, magnets with countersunk holes that can be fixed with countersunk screws or bolts may break if tightened too much. Please consider the optimal tightening torque that will not damage the magnet.

  • magnet

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Permanent magnets *For retailers and wholesalers

Permanent magnets *For retailers and wholesalers

Utilized in various fields such as MRI, pacemakers, electronic devices, audio equipment, communication devices, and automobiles! Immediate shipping available from just one magnet, with no need to hold inventory!

Permanent magnets are utilized in various fields by applying attraction and repulsion forces, as well as electromagnetic induction and electromagnetic forces, and further demand is expected to increase in the future. In industrial products, they are used in motors, sensors, machine tools, measuring instruments, and are also incorporated into all kinds of consumer goods such as electrical appliances, audio equipment, communication devices, and automobiles. (For example, nearly 100 magnets are used per automobile.) Additionally, they are found in over 400 types of products ranging from precision instruments like MRI (magnetic resonance imaging) machines and pacemakers to stationery and toys. 【Overview of Permanent Magnets】 ■ Ferrite Magnets 　⇒ Shaped sintered products mainly composed of iron oxide ■ Neodymium Magnets 　⇒ Shaped sintered products mainly composed of neodymium, iron, and boron ■ Samarium-Cobalt Magnets 　⇒ Shaped sintered products mainly composed of samarium and cobalt ■ Alnico Magnets 　⇒ Cast products mainly composed of iron, nickel, and cobalt ■ Rubber Magnets 　⇒ Molded products made by mixing magnetic powders like ferrite or neodymium with resin ■ Cap Magnets 　⇒ Products that combine permanent magnets with a yoke (iron material) *For more details, please contact us at the address below or download the catalog.

  • magnet

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Free distribution of the 'Permanent Magnet Products Comprehensive Catalog & Latest Inventory List' by Niroku Seisakusho.

Free distribution of the 'Permanent Magnet Products Comprehensive Catalog & Latest Inventory List' by Niroku Seisakusho.

Understand the basics of magnets! We are giving away a comprehensive catalog of permanent magnets featuring characteristics and product examples, along with the latest inventory list.

This is the "Permanent Magnet Products Comprehensive Catalog" from Niroku Seisakusho, which processes and sells permanent magnets and related products. It includes numerous listings of the characteristics and examples of each type of magnet. 【Featured Products (Partial)】 ◆ Ferrite Magnets These offer the best cost performance. They are brittle but resistant to rust. ◆ Neodymium Magnets These have the highest magnetic energy among existing magnets. They are prone to rust, so they are treated with nickel plating for rust prevention. ◆ Samarium Cobalt Magnets These have high magnetic energy, second only to neodymium magnets. They are brittle but can be used in high-temperature environments. ◆ Other related products/magnetic application devices, etc. For products in stock, orders placed by 5 PM can be shipped the same day with free shipping across Japan for as little as one magnet. Please consult us for custom magnets, including short lead times for basic shapes and production of special shapes. 【Stock List of Featured Products】 We have a wide range of ferrite magnets, neodymium magnets, samarium cobalt magnets, alnico magnets, rubber magnets, cap magnets, and related products listed by various shapes and sizes. For more details, please check with us.

  • magnet

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Neodymium magnet grade N40 round type

Neodymium magnet grade N40 round type

Shipping nationwide on the same day from just one piece. Neodymium magnets are permanent magnets with the strongest magnetic force, allowing for miniaturization and thinness.

Shipping nationwide on the same day from just one piece. Neodymium magnets are the strongest permanent magnets, allowing for miniaturization and thin designs. They are over eight times stronger than anisotropic ferrite magnets. In terms of shape, there are types with screwable countersunk holes. Discounts for bulk purchases are available, and we can discuss pricing. Neodymium magnets can be custom-made in small quantities. As for the applications of neodymium magnets, quantitatively, they are mostly used in various motors, MRI machines, and disk drives for magnetic recording devices. However, they are also used in a wide range of situations, including for displays, golf markers, magnetic fixtures, jigs, transportation, and experiments.

  • magnet

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Types and Uses of Permanent Magnets

Types and Uses of Permanent Magnets

We will introduce permanent magnets, which are applied in various fields such as automobiles, equipment, home appliances, and IT.

Permanent magnets are applied in various fields, including automobiles, equipment, home appliances and IT, environment, and medical applications. Currently, just for automotive motors, mass-market cars use about 20 to 40 motors, while luxury cars use around 70 to 100 motors. When including various magnetic sensors, car navigation systems, and audio devices, it is reasonable to consider that a single car uses between 50 and 150 permanent magnets. Additionally, there are various types of permanent magnets, including ferrite magnets, metal magnets, and bonded magnets. 【Application Fields】 ■ Automobiles: EPS/ABS, onboard sensors ■ Equipment: Industrial robots, machine tools, elevators ■ Home Appliances and IT: Washing machines, air conditioners, HDDs, ODDs ■ Environment: Wind power generation ■ Medical: MRI, magnetic therapy devices *For more details, please refer to the PDF materials or feel free to contact us.

  • power supply
  • electromagnet
  • magnet

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Permanent magnet

Permanent magnet

Neodymium magnets and Alnico magnets, etc. We contribute to tomorrow's society with permanent magnets.

Our company handles "permanent magnets" used in various fields such as mobile phones, speakers, headphones, vibration motors, industrial parts, and miscellaneous goods. We can provide a variety of shapes including round, ring, rectangular, rectangular with holes, and segment (C) types. With a rich product lineup as our backbone, our experienced staff is here to assist you. Please feel free to contact us when considering magnets. 【Product Lineup】 ■ Neodymium magnets ■ Samarium cobalt magnets ■ Ferrite magnets ■ Alnico magnets ■ Rubber magnets *For more details, please download the PDF or feel free to contact us.

  • magnet
  • Contract manufacturing

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Processing and sales of permanent magnets and related products.

Processing and sales of permanent magnets and related products.

Processing and sales of permanent magnets and related products.

Thanks to your support, we have been in business for over 80 years. The website of Niroku Seisakusho Co., Ltd. is filled with information about magnets that can meet a variety of needs. For products in stock, we can ship one magnet or more nationwide with shipping costs covered by us for orders placed by 5 PM on the same day. Please consult us for custom-made magnets, including short lead times for basic shapes and production of special shapes.

  • magnet

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5-Minute Guide to Magnet Facts

5-Minute Guide to Magnet Facts

Basic knowledge of magnets and examples of problems such as cracking, rust, and loss of magnetic strength.

At Niroku Seisakusho, which handles permanent magnets, we are currently offering an introductory material titled "5-Minute Guide to Magnet Trivia." It includes basic knowledge such as "Why do magnets stick to iron in the first place?" and the causes of magnetic force decline. This is recommended for those who want to learn about magnets from scratch! 【Contents (Excerpt)】 ■ What is the North Pole? ■ Why do magnets attract iron? ■ Types of magnets ■ Uses of magnets ■ Causes of demagnetization ■ Examples of magnet-related troubles *This material can be viewed via "PDF Download." Please feel free to contact us with any inquiries.

  • magnet

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Clear Understanding: "Magnet Reference Book"

Clear Understanding: "Magnet Reference Book"

Recommended for internal documents. A compilation of simple questions about magnets. Currently available for free.

Since 1940, our company, specializing in magnets, is offering the book "A Clear Understanding of Magnets" as a gift. It includes questions and answers collected from our extensive experience in custom-made magnets. It is also recommended for internal circulation materials and study purposes. 【Contents (excerpt)】 ■ Can iron become a permanent magnet? ■ What is the difference between anisotropic and isotropic magnets? ■ What are magnetization and demagnetization? ■ What are surface magnetic flux density and adhesive force? ■ Is it possible to block the magnetic force of a magnet? ■ What is the difference between the operating temperature of a magnet and the Curie temperature? *This document can be accessed via "PDF Download."

  • magnet

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Proposal Example: Processing of High-Precision Ring Magnets

Proposal Example: Processing of High-Precision Ring Magnets

We will respond to various requests.

Magnets are used for various purposes. Of course, the requirements of our customers differ from one another. We will strive to provide suggestions that meet our customers' needs as much as possible. Before you start wondering if something is possible or if you can make a certain request, we would appreciate it if you could contact us once.

  • magnet
  • electromagnet

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Proposal example: Short-term production of magnetic circuits for magnetron sputtering.

Proposal example: Short-term production of magnetic circuits for magnetron sputtering.

We will respond to various requests.

Magnetic fields are utilized to control plasma in a vacuum for the deposition of thin films used in semiconductor manufacturing equipment, flat panel displays, solar cells, and other electronics products, optical components, and decorative items, as well as in sputtering processes. Permanent magnets are used to manage various parameters such as magnetic field strength, generation location, magnetic field direction, and magnetic field gradient to achieve the desired effects. Our analysis, design, manufacturing, and measurement services can help you leverage these characteristics.

  • magnet
  • electromagnet

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Neodymium magnet, square, 2×2×2.

Neodymium magnet, square, 2×2×2.

Powerful magnets! A wide selection of neodymium magnets for sale.

Introducing the "Square" neodymium magnets with fast response, same-day shipping, and nationwide service. 【Specifications】 Size: Length (L) 2mm, Width (W) 2mm, Height (H) 2mm Dimensional Tolerance: ±0.1mm Magnetization Direction: Height 2mm direction Surface Treatment: Nickel plating Surface Magnetic Flux Density: 3,550 Gauss (355 milliTesla) Holding Force: 0.18kg (holding force is a reference value) Operating Temperature: Below 80℃

  • Rare metals
  • magnet
  • others

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Neodymium magnet, rectangular, 4×4×5.

Neodymium magnet, rectangular, 4×4×5.

Powerful magnets! A wide selection of neodymium magnets for sale.

Introducing the "Square" neodymium magnets with speedy response, same-day shipping, and nationwide availability. 【Specifications】 Size: Length (L) 4mm, Width (W) 4mm, Height (H) 5mm Dimensional tolerance: ±0.1mm Magnetization direction: Height 5mm direction Surface treatment: Nickel plating Surface magnetic flux density: 4,500 Gauss (450 millitesla) Adhesive force: 0.77kg (adhesive force is a reference value) Operating temperature: Below 80℃

  • Rare metals
  • magnet
  • others

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Magnetic Separator: The Difference Between Electromagnets and Permanent Magnets

Magnetic Separator: The Difference Between Electromagnets and Permanent Magnets

I will introduce the differences between electromagnets and permanent magnets used in various fields such as motors, cars, trains, and electronic devices!

Introduction to the Differences Between Electromagnets and Permanent Magnets An "electromagnet" is a type of magnet that generates "temporary" magnetic force by winding a coil around a core made of magnetic material (commonly iron) and passing an electric current through it. By stopping the current, it is possible to reduce the magnetic force to nearly zero. A "permanent magnet," on the other hand, is an object that generates a magnetic field without the need for external energy, such as electricity. Unless subjected to heat or shock, it does not lose its magnetic force for a semi-permanent duration. [Features] < Electromagnet > ■ It is possible to reduce the magnetic force to nearly zero by stopping the current. ■ Compared to a permanent magnet of similar size, it can generate a larger magnetic force. ■ Continuous current through the coil generates heat, which increases resistance and reduces the magnetic force (weakens it). *For more details, please refer to the PDF document or feel free to contact us.

  • Automatic sorting machine

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Free gift of the magnetic products comprehensive catalog.

Free gift of the magnetic products comprehensive catalog.

[Comprehensive Catalog Giveaway] Featuring various magnets, from magnetic properties to comparisons of various characteristics!

The T-Tech Technology catalog features magnetic products from Chinese partner manufacturers and technical sales companies that conduct contract manufacturing, focusing on high-quality Alnico magnets, Fe-Cr-Co magnets, and Sm-Co magnets! Contents: ■ About Magnetic Properties 1. Alnico Magnets 2. Iron-Chromium-Cobalt Magnets 3. Samarium-Cobalt Magnets * Includes various properties, applications, and permeability coefficient tables. ■ Characteristics Charts of Permanent Magnets ■ Comparison of Magnetic Properties by Material ≪Download the comprehensive catalog for free!≫ Please check below under [Download].

  • magnet

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