小田商事 List of Products and Services

At Oda Shoji, we collaborate with specialized manufacturers in China to provide everything from prototypes to mass-produced products tailored to our customers' requirements. We have many experienced materials engineering and magnetic design engineers on staff to support all challenges in the field of magnetic applications. In our "Magnet Assembly Solutions," we assist customers in selecting and developing types of laminated magnets for high-efficiency motors, as well as in designing and producing magnet assemblies. 【Features】 ■ By partnering with specialized manufacturers in China, we provide everything from prototypes to mass production tailored to our customers' needs. ■ We have many experienced materials engineering and magnetic design engineers on staff. ■ We support all challenges in the field of magnetic applications. *For more details, please refer to the PDF materials or feel free to contact us.

• magnet

We would like to introduce the "laminated magnets" handled by Oda Shoji. Our uniquely developed technology at our cooperative factory in China reduces eddy current losses in motors, enhancing motor efficiency. We can fully meet the demands for magnets. The maximum operating temperature for the magnets is 60-240°C, while the maximum operating temperature for the magnet surface coating is 200-300°C, and the insulation layer thickness is 50-100μm. Please feel free to contact us when you need assistance. 【Features】 ■ Unique development technology from our cooperative factory in China ■ Reduces eddy current losses in motors ■ Enhances motor efficiency ■ Fully meets the demands for magnets *For more details, please refer to the PDF document or feel free to contact us.

• magnet

Our company sells "neodymium magnets" with high magnetic flux density (magnetic force) and "precious metal clad materials" based on copper and copper alloys. "Neodymium magnets" are available in a variety of products suitable for various applications, including vibration motors for mobile phones, drive components for hard disk drives, vehicles, and synchronous motors for elevator drives. We also offer surface treatment processes that enhance corrosion resistance, achieving longer lifespans. Additionally, "clad materials" can form precious metal coatings with high bonding strength and thickness precision. We respond to requests for cost reductions through prototype and mass production, as well as by reducing the usage of rare earths and precious metals. 【Features】 ■ Flexible responses focused on customer satisfaction ■ High quality achieved through manufacturing in factories with quality management systems based on IATF16949 and ISO 9001 ■ Pursuing low costs even amid rising material prices ■ Proven track record of deliveries to major companies *For more details, please refer to the materials available for PDF download. Feel free to contact us with any inquiries.

• Composite Materials

We would like to introduce our high-performance alloy for lead frames (C19400), which has excellent electrical and thermal conductivity. In addition to its outstanding heat resistance and stress corrosion cracking resistance, it possesses a high strength that is approximately 20% greater than that of pure copper. We also offer products made from other materials, including C19210, C19040, and C18080, so please feel free to contact us. 【Features】 ■ Extremely good electrical and thermal conductivity ■ Excellent heat resistance ■ Superior stress corrosion cracking resistance ■ Approximately 20% higher strength compared to pure copper *For more details, please refer to the PDF document or feel free to contact us.

• alloy

"AgPd/C7701 (C7025)" is a clad material suitable for brushes in various micro motors (for example, mobile phones). The material has excellent wear resistance and corrosion resistance, stable contact resistance, and a long lifespan. Other product types can be developed and produced based on customer requirements, so please feel free to contact us when needed. 【Manufacturing Specifications (Excerpt)】 ■ Base Material Thickness ・>0.03-0.5, >0.05-0.10, >0.10-0.30, >0.30-0.45, >0.45-0.55, 　>0.55-0.90, >0.90-1.20, >0.20-1.50, >1.50 ■ Cladding Material Thickness and Tolerances ・Thickness: 0.0015 - 70% of base material thickness ・Tolerances: 20% -10% *For more details, please refer to the PDF document or feel free to contact us.

• alloy
• Other metal materials

"AgCuNi-Re/C1020" is a clad material with excellent wear resistance and resistance to arc erosion. It significantly reduces the probability of hang-ups due to short circuits caused by the accumulation of wear debris. The service life is clearly improved compared to similar materials. This series of materials has good stability at high temperatures and excellent high-temperature wear resistance, meeting the demands of motor applications at elevated temperatures. 【Features】 ■ Suitable for commutators of various motors ■ Possesses excellent wear resistance and resistance to arc erosion ■ Significantly reduces the probability of hang-ups due to short circuits caused by the accumulation of wear debris ■ Service life is clearly improved compared to similar materials ■ The degree of wear is light, and the probability of hang-ups due to short circuits is low *For more details, please refer to the PDF document or feel free to contact us.

• alloy
• Other metal materials

The materials AL/Cu (C1020, C19400, C5191) are used in bellows for high-output IGBTs and in lead frames for integrated circuits sealed with low-melting-point glass using AL/42Ni clad material. AL is welded with SiAl wire, and 4J42 or 4J29 is compatible with low-melting-point glass for sealing. In addition, our company offers clad materials such as "AL/42Ni," "Cu/42Ni," and "AgCu/42Ni." 【Features】 ■ Used in bellows for high-output IGBTs ■ Used in lead frames for integrated circuits sealed with low-melting-point glass using AL/42Ni clad material ■ AL is welded with SiAl wire, and 4J42 or 4J29 is compatible with low-melting-point glass for sealing ■ C1020 and C19400 serve a conductive role and meet the demands for miniaturization of integrated circuits *For more details, please refer to the PDF document or feel free to contact us.

• alloy
• Other metal materials

"Precious Metal Clad Material" is a new material that, through special technology, is based on copper or copper alloys, with one or more layers of precious metals (such as gold, silver, palladium, platinum, etc.) or their alloys embedded or coated on the base material. It can be used as a substitute for precious metal components and plated parts, effectively saving the amount of precious metal used and reducing manufacturing costs. Additionally, it extends the lifespan of products and enhances performance and reliability. 【Features】 ■ Used as a substitute for precious metal components and plated parts ■ Extends product lifespan and enhances performance and reliability ■ Contributes to overall quality improvement of products ■ The thickness precision of the precious metal coating is very high, and the bonding strength between the base material and the precious material is strong ■ Achieves high precision of clad materials through multiple repetitions of rolling and heat treatment *For more details, please refer to the PDF document or feel free to contact us.

• alloy

"Nano Coating" is an environmentally friendly surface treatment for high corrosion-resistant magnets that exhibits excellent rust and decay prevention. It utilizes uniquely developed production equipment, with all operations performed by robotic arms. Additionally, it possesses ultra-high mechanical properties, superior stability, and insulation (without loss of magnetic flux density). 【Features】 ■ Ultra-high corrosion resistance ■ Superior stability ■ Insulation (without loss of magnetic flux density) ■ Excellent rust and decay prevention ■ Environmentally friendly *For more details, please refer to the PDF document or feel free to contact us.

• Other surface treatment equipment
• magnet

At Oda Shoji, we provide various high-performance, high-precision, and high-quality magnets from prototypes to mass production by partnering with specialized manufacturers in China to meet our customers' requirements. The "Low Rare Earth / Rare Earth Free Product Series" reduces the amount of rare earth materials used by optimizing the materials and casting structure of the magnets. This offers the benefits of improved performance and reduced costs. 【Product Lineup】 <Low Rare Earth Product Series> ■52M, 50H, 52H, 42SH, and 35UH <Rare Earth Free Product Series> ■N52/55, 42H, 45H(48H), 45M, 48M, 48MT, 50M, 30SH, 33SH, 35SH, 38SH(40SH) *For more details, please refer to the PDF document or feel free to contact us.

• magnet

Let me introduce the uses of magnets. The first practical application of magnets was in the compass, which utilized the property of magnets to point north and south due to the Earth's magnetic field. After being invented in China, the compass was introduced to Europe, where it was improved, significantly advancing navigation and leading to the Age of Exploration. Even today, compasses that use magnets are widely used in various fields, including mountaineering. In addition to compasses, magnets can be used in applications in industries such as manufacturing, healthcare, and more. 【Features】 ■ Compass: The first practical application of magnets ■ Used in motors and speakers by converting electrical energy into mechanical energy, such as rotation and air vibration, using permanent magnets and electromagnets ■ Utilized in medical applications like nuclear magnetic resonance imaging ■ Custom specifications used in hydraulic excavators primarily in factories and scrap yards *For more details, please refer to the PDF document or feel free to contact us.

• magnet

We would like to introduce the types of magnets we handle. As naturally occurring magnets, magnetite (iron(II,III) oxide, Fe3O4) is noted, which has been well known since ancient times. This iron(II,III) oxide is what was produced as magnetite (or iron sand). Even today, if you insert a permanent magnet into the sand on a beach, it is sufficiently visible. The magnet stone of Suzakayama, known as a magnetized rock, derives its magnetism from the magnetite within the granite. In the 20th century, artificial magnets with sufficient strength for practical use began to be produced, replacing natural magnetite. 【Lineup (partial)】 ■ Platinum magnets ■ Plastic magnets ■ Iron-chromium-cobalt magnets ■ Neodymium magnets *For more details, please refer to the PDF document or feel free to contact us.

• magnet

"Samarium-cobalt magnets" are made from samarium and cobalt. There are two types with different composition ratios: "2-17 series" and "1-5 series." The "1-5 series" has a higher ratio of expensive samarium, so it has become less commonly used since the introduction of the "2-17 series." They are characterized by strong magnetic force, high corrosion resistance, and good temperature characteristics (usable up to about 200°C). 【Features】 ■ Raw materials: Samarium and cobalt ■ Lineup of "2-17 series" and "1-5 series" with different composition ratios ■ Strong magnetic force ■ High corrosion resistance ■ Good temperature characteristics: Usable up to about 200°C *For more details, please refer to the PDF document or feel free to contact us.

• magnet

Neodymium magnets are one of the rare earth magnets primarily composed of neodymium, iron, and boron. They have a high magnetic flux density and possess very strong magnetic force, with a significant thermal demagnetization of about -0.12%/K, and a Curie point of approximately 310°C. Due to their strong magnetic force, they are used in various applications, from the drive components of hard disks and CD players to the vibration motors in mobile phones, as well as in permanent magnet synchronous motors for trains, hybrid cars, and elevators. 【Features】 - One of the rare earth magnets primarily composed of neodymium, iron, and boron - High magnetic flux density and strong magnetic force - Significant thermal demagnetization of about -0.12%/K - Curie point: approximately 310°C *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements
• magnet

"Ferrite magnets" are a type of oxide magnet made primarily from iron oxide, which is sintered to create the final product. Iron oxide is mixed with trace amounts of barium or strontium, then baked and crushed into particles about 1μm in size, which are then molded and sintered. Because iron oxide is the main raw material, they are inexpensive and chemically stable, making them suitable for various applications. Our company produces these magnets in-house through a consistent production process from materials to finished products. [Features] - Although the magnetic flux density is low, it has high coercivity and is resistant to demagnetization. - It has high electrical resistance, resulting in low eddy current loss, and can be applied up to high frequencies. - The hardness is relatively high, but they are prone to cracking. - Being ceramic, they are resistant to chemicals and do not rust. - Before baking, they are in powder form, allowing for flexible shaping. *For more details, please refer to the PDF document or feel free to contact us.

• magnet

"Alnico magnets" are magnets made from materials such as aluminum, nickel, and cobalt. They were the mainstream type of magnet until the mid-20th century, but eventually lost their leading position to cheaper and easier-to-shape ferrite magnets. Our company produces them in-house through a consistent production process from materials to finished products. 【Product Lineup】 ■ Custom-made magnets ■ Ring type ■ Square type *For more details, please refer to the PDF materials or feel free to contact us.

• magnet

Our company is a specialized trading firm that offers solutions related to metals, non-ferrous metal materials, and magnets. We handle magnets such as the "Neodymium Rare Earth Magnet Series" and "Laminated Magnet Series," as well as metals and non-ferrous metal materials like non-ferrous metals, stainless steel, and aluminum. Please feel free to contact us if you have any requests. 【Materials Handled】 ■ Copper, Copper Alloys ■ Copper Foil ■ Corson Alloy ■ Stainless Steel ■ Electromagnetic Soft Iron, etc. *For more details, please download the PDF or contact us.

• Other metal materials