二六製作所 List of Products and Services

We will introduce a case study of custom-made Alnico magnets in a round shape with a short delivery time. ■Standard delivery time is approximately 12 weeks In the case of this product, it is usually processed to the desired size after procuring or manufacturing the base material. After that, magnetization, pre-shipment inspection, and packaging are carried out. The overall standard delivery time is approximately 12 weeks. ■Short delivery time response is about 2 weeks In the case of a short delivery time, existing magnets are demagnetized and processed to the desired size. After that, magnetization, pre-shipment inspection, and packaging are carried out. The overall delivery time is approximately 2 weeks. Although costs increase compared to the standard manufacturing method, it is possible to process existing magnets or the base materials held consistently domestically and reduce the delivery time to less than half. 【Manufacturing case】 Material: Alnico magnet Alnico 5 Size: Φ3×1 Quantity: 4 pieces *For more details, please contact our company.

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We will introduce a case study of custom-made Samacoba magnetic rectangular products with a short delivery time. ■Standard delivery time is approximately 5 to 8 weeks In the case of this product, the standard process involves procuring or manufacturing the base material, followed by processing it to the desired size. After that, magnetization, pre-shipment inspection, and packaging are carried out. The overall standard delivery time is approximately 5 to 8 weeks. ■Short delivery time is approximately 1 week In the case of a short delivery time, existing base materials are processed to the desired size. After that, magnetization, pre-shipment inspection, and packaging are carried out. The overall delivery time is approximately 1 week. Although costs will increase compared to the standard manufacturing method, we can process existing magnets and base materials consistently domestically, reducing the delivery time to less than half. 【Production Case】 Material: Samacoba Magnet YKS-240 Size: 3×1.8×5 Quantity: 18 pieces For more details, please check with our company.

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We will introduce a case study of custom-made neodymium magnets in a round shape with a short delivery time. ■Normal delivery time is approximately 8 weeks In the case of this product, it typically involves procuring or manufacturing the raw material, followed by processing it to the desired size. After that, surface treatment (plating), magnetization, pre-shipment inspection, and packaging are carried out. The overall normal delivery time is approximately 8 weeks. ■Short delivery time is approximately 2 weeks In the case of a short delivery time, existing raw materials are processed to the desired size. After that, surface treatment (plating) is omitted, and magnetization, pre-shipment inspection, and packaging are performed. The overall delivery time is approximately 2 weeks. Although the cost will increase compared to the usual manufacturing method, we can process existing magnets and raw materials consistently domestically, reducing the delivery time to less than half. 【Manufacturing case】 Material: Neodymium magnet N-35 Size: Φ7.2×2 Quantity: 10 pieces For more details, please contact our company.

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We will introduce a custom-made ferrite magnet ring production case with a short delivery time. ■ Normal delivery time is approximately 10 to 12 weeks. In the case of this product, it typically goes through mold manufacturing and press forming before being processed to the desired size. After that, magnetization, pre-shipment inspection, and packaging are carried out. The overall delivery time is about 10 to 12 weeks. ■ Short delivery time is approximately 1 to 2 weeks. In the case of a short delivery time, existing magnets are demagnetized and processed to the desired size. After that, magnetization, pre-shipment inspection, and packaging are carried out. The overall delivery time is about 1 to 2 weeks. While the cost will increase compared to the usual production method, we can process existing magnets and raw materials consistently domestically, reducing the delivery time to less than half. 【Production Case】 Material: Ferrite magnet, isotropic ferrite Size: Φ20×Φ10×5 Quantity: 10 pieces For more details, please check with our company.

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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.

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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.

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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."

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Since 1940, Niroku Seisakusho, which handles magnets, has been offering a "Custom Order Consultation Room." We have published questions and answers received by our company, which has extensive experience in custom magnets. If you are considering magnets that are not available in stock sizes or shapes, please be sure to check it out. [Contents (excerpt)] ■ What types of magnets can be manufactured? ■ What sizes and shapes of magnets can be manufactured? ■ Can magnets be made with specified surface magnetic flux density and adhesion strength? ■ Can magnets be processed after manufacturing? ■ Can the magnetization pattern be changed later? ■ Can magnets be glued? *This document can be checked via "PDF Download."

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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.

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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.

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Ferrite magnets are sintered products made using powder metallurgy. They are inexpensive magnets used when magnetic properties are stable and a strong magnetic field is not required. Generally, they are the blackish magnets you commonly see and are used for a wide range of applications. Please try the stock items first. If you order in bulk, there are lot discounts available, so please consider this.

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Neodymium magnets are molded and sintered products primarily composed of neodymium, iron, and boron. They have an extremely high magnetic energy, the highest among existing magnets. Due to their susceptibility to rust, they are mainly surface-treated with nickel plating. We can also accommodate the production of small quantities of prototypes through machining. Please try our stock items first. If you order in bulk, there are lot discounts available, so please consider this.

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Samarium-cobalt magnets are sintered products primarily composed of samarium and cobalt. They possess excellent magnetic properties, second only to neodymium magnets. They are also resistant to high temperatures, but they are brittle, so care must be taken when handling them. Please start by trying the stock items. If you order in larger quantities, there will be a lot discount, so please consider it.

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Alnico magnets are made by casting. They are prone to demagnetization, but they have excellent properties with respect to temperature and are often used when stability of precision is required. Dimensions and shapes can be maintained through polishing processes. Please start by trying our stock items. If you order in bulk, there are lot discounts available, so please consider this.

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Rubber magnets are highly flexible. They are easy to cut, punch, and print, making them suitable for a wide range of applications. For small quantities, it is economical for customers to cut the stock items themselves. For mass production, we can cut them to the desired size. There are also color sheets and options with one-sided tape available. Please start by trying the stock items. If the quantity is substantial, there are lot discounts available, so please consider this. *The magnetic strength for the same size is as follows: Isotropic ferrite < Anisotropic ferrite < Neodymium We can also accommodate top and bottom NS magnetization, printing, tape attachment, and PP lamination. Round, ring, and special shapes can be produced in small quantities without the need for a die.

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Cap magnets are products that effectively utilize magnetic energy. They only attract to the magnetic surface, but they provide a strong adhesive force. Additionally, since the area outside the adhesive surface is made of yoke (iron material), they have excellent impact resistance. Please try the stock items first. If you order in bulk, there are lot discounts available, so please consider it. Magnetic field lines concentrate between the magnetic surface and the surrounding iron. As a result, the adhesive force becomes 3 to 4 times stronger than that of a standalone magnet. However, since the magnetic field lines do not extend far, it is important to ensure that there is no gap between the magnet and the object being attracted. We can also provide protective films and double-sided tape. Yokes (iron materials) and various magnets can be manufactured to your desired size.

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It is suitable for neodymium magnets and yokes (iron materials) that are prone to rust due to their high hardness and excellent corrosion resistance. We can also accommodate single-layer nickel plating and three-layer plating of nickel-copper-nickel. While electrolytic nickel plating is common, we can also produce it with electroless nickel plating, achieving uniform film thickness.

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It has high hardness and excellent corrosion resistance and adhesion. It is also used for surface treatment of general industrial products (such as bolts, nuts, and washers). Neodymium magnets are very prone to rust, so they may be coated with nickel plating as a base.

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It is suitable for rust-prone neodymium magnets due to its excellent corrosion resistance. Additionally, it is suitable for brittle ferrite magnets because of its high impact resistance. It can be treated in various colors and is used for a wide range of applications.

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It has excellent heat resistance, corrosion resistance, chemical resistance, abrasion resistance, and insulation properties. Additionally, it has a high non-stick property that prevents most substances from adhering. It is commonly referred to as Teflon coating. Neodymium magnets are often nickel-plated as a base. Our company offers two types of fluoropolymer coatings (PTFE and PFA).

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It is suitable for rust-prone neodymium magnets and yokes (iron materials) due to its excellent corrosion resistance. Additionally, because of its high adhesion, delamination due to impact and friction is less likely to occur. Primarily, chromate treatment is performed to enhance corrosion resistance. Previously, it contained hexavalent chromium, but it has now been replaced with trivalent chromium.

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It has excellent electrical conductivity, corrosion resistance, and wear resistance. Additionally, due to its excellent light reflectivity, it is widely used as a decorative surface treatment. Neodymium magnets are often coated with nickel plating on the base. Note that gold plating is different from gold-colored plating.

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Used for the removal of iron pieces from transported objects installed on a belt conveyor.

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Used in conjunction with a grinding machine for the removal of magnetic powder from coolant liquid.

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Used for sorting and recovering non-ferrous metals such as aluminum from target materials. The internal magnetic poles are fixed while the SUS outer cylinder rotates. Iron pieces are attracted by the built-in magnets from the target materials flowing over the surface of the outer cylinder. Iron pieces are removed with a scraper attached to the outer cylinder.

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Used for removing iron powder from powdered materials by incorporating a permanent magnet drum-type magnetic separator into a case.

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A magnetic separator with a magnet bar incorporated into a grid frame is used for the removal of iron powder in the manufacturing processes of pharmaceuticals and food products.

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The grid-type magnetic separator is embedded in the case and used for removing iron powder in the manufacturing processes of pharmaceuticals and food products.

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Installed in the pipe transport route between pharmaceutical and food manufacturing processes for the removal of weakly magnetic powder.

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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.

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Rust may occur due to the influence of moisture and other factors. Rust can cause demagnetization. Some magnets are treated with surface coatings such as nickel plating for rust prevention, but the surface treatment may peel off due to impact from attraction or aging, leading to rust. Care should be taken in handling to avoid damaging the surface treatment, and it is necessary to avoid places with high moisture as much as possible. We can provide solutions such as epoxy coatings or nylon coatings with high rust prevention effects, so please contact our company.

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When the operating temperature is exceeded, it becomes difficult for the magnetic force to recover. Additionally, if the Curie temperature is exceeded, it will completely lose its magnetic force. In cases of use in high-temperature environments, it is necessary to consider the operating environmental temperature. There may be cases where the magnetic force can be restored through re-magnetization, so please contact us.

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Products with strong magnetic force, such as rare earth magnets, are difficult to pull off. The magnet generates the strongest magnetic force in the vertical direction relative to its strong magnetic face. Therefore, by fixing one side and shifting the other side parallel to the strong magnetic face, it can be relatively easily removed. If the size is considerable, placing it on the edge of a table and applying body weight from above can make it even easier to remove. Using tools to forcibly remove it may damage the magnet. If removal is difficult, please contact our company.

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Credit cards and cash cards may become unusable due to magnetic interference. It is necessary to keep items that are susceptible to magnetic influence away from magnets. A effective way to block magnetism is to keep them attached to iron pieces.

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It is not possible to distinguish between the N pole and S pole by appearance. You can determine the polarity using a known magnet for identification or by using measuring instruments. Additionally, some of our stock items have polarity identification markings while others do not. We can ship items with polarity identification markings if requested. Please contact us at the time of ordering if you wish to do so.

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Neodymium magnets are sintered products primarily composed of neodymium, iron, and boron. They have an extremely high magnetic energy, making them the strongest magnets available. Due to their susceptibility to rust, they are mainly surface-treated with nickel plating. We can also accommodate the production of small quantities of prototypes through machining. Please try our stock items first. If you order in bulk, there are lot discounts available, so please consider this.

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Neodymium magnets are molded and sintered products primarily composed of neodymium, iron, and boron. They have an extremely high magnetic energy, making them the strongest magnets available. Due to their susceptibility to rust, they are mainly surface-treated with nickel plating. We can also accommodate the production of small quantities of prototypes through machining. Please try our stock items first. If you order in larger quantities, there are discounts available for bulk orders, so please consider that.

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Neodymium magnets are molded and sintered products primarily composed of neodymium, iron, and boron. They have an extremely high magnetic energy, making them the strongest magnets available. Due to their susceptibility to rust, they are mainly surface-treated with nickel plating. We can also accommodate the production of small quantities of prototypes through machining. Please start by trying out our stock items. If you order in larger quantities, there are lot discounts available, so please consider that.

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Neodymium magnets are molded and sintered products primarily composed of neodymium, iron, and boron. They have exceptionally high magnetic energy, making them the strongest magnets available. Due to their susceptibility to rust, they are mainly surface-treated with nickel plating. We can also accommodate the production of small quantities of prototypes through machining. Please start by trying our stock items. If you order in larger quantities, there are batch discounts available, so please consider this.

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Neodymium magnets are molded and sintered products primarily composed of neodymium, iron, and boron. They have extremely high magnetic energy, making them the strongest magnets available. Due to their susceptibility to rust, they are mainly surface-treated with nickel plating. We can also accommodate the production of small quantities of prototypes through machining. Please start by trying our stock items. If you order in bulk, there are lot discounts available, so please consider this.

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Neodymium magnets are molded and sintered products primarily composed of neodymium, iron, and boron. They have an extremely high magnetic energy, making them the strongest magnets available. Due to their susceptibility to rust, they are mainly surface-treated with nickel plating. We can also accommodate the production of small quantities of prototypes through machining. Please try our stock items first. If you order in larger quantities, there are discounts available for bulk purchases, so please consider this.

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Neodymium magnets are molded and sintered products primarily composed of neodymium, iron, and boron. They have an extremely high magnetic energy, making them the strongest magnets available. Due to their susceptibility to rust, they are mainly surface-treated with nickel plating. We can also accommodate the production of small quantities of prototypes through machining. Please start by trying out our stock items. If you order in larger quantities, there are discounts available for bulk orders, so please consider this.

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Neodymium magnets are molded and sintered products primarily made of neodymium, iron, and boron. They have extremely high magnetic energy, making them the strongest magnets available. Due to their susceptibility to rust, they are mainly surface-treated with nickel plating. We can also accommodate the production of small quantities of prototypes through machining. Please start by trying our stock items. If you order in larger quantities, there are lot discounts available, so please consider that.

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Neodymium magnets are molded and sintered products primarily composed of neodymium, iron, and boron. They have extremely high magnetic energy, making them the strongest magnets available. Due to their susceptibility to rust, they are mainly surface-treated with nickel plating. We can also accommodate the production of small quantities of prototypes through machining. Please start by trying our stock items. If you order in bulk, there are lot discounts available, so please consider this.

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Neodymium magnets are molded and sintered products primarily composed of neodymium, iron, and boron. They have an extremely high magnetic energy, making them the strongest magnets available. Due to their susceptibility to rust, they are mainly surface-treated with nickel plating. We can also accommodate the production of small quantities of prototypes through machining. Please try our stock items first. If you order in bulk, there are lot discounts available, so please consider this.

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