ナミテイ List of Products and Services

By applying our core technology of shaped wire drawing to non-ferrous materials, we can achieve high functionality in electronic components. The "high capacity" of EVs and "lightweighting" through the replacement with aluminum parts, along with the use of shaped wires that closely match the component shapes, enable the production of non-ferrous parts with high yield. You can view materials introducing examples of processing shaped metal parts such as heat sinks, EV relays, busbars, and shafts by downloading the PDF. [Contents] ◎ Heat Sink ◎ EV Relay ◎ Busbar ◎ Shaft ◎ Iron Core ◎ Spacer ◎ Armature ◎ Cam ◎ Latch *Please feel free to contact us with any inquiries.

Our company is engaged in the development and manufacturing of "copper products for EVs" utilizing our manufacturing technology for shaped wire, including busbar materials with irregular cross-sections and press-processed components for mounting. We can vary the thickness and side shapes, allowing for highly flexible designs such as undulating shapes, asymmetrical shapes, and hollowing, enabling us to accommodate processing tailored to customer needs. We also provide long coils suitable for continuous production, as well as the manufacturing of terminals, iron cores, contact pieces, and contacts for high-capacity circuit breakers. [Examples of developed products] ■ Busbar materials for bending ■ Copper components for mounting ■ EV relay-related components *For more details, please refer to the introduction materials available for download in PDF format. Feel free to contact us with any inquiries.

Namitei specializes in the production of shaped coil wire using coil wire materials, and has produced a large number of shaped wires for automotive parts as well as for plants and civil engineering. Recently, in the automotive industry, "weight reduction" has become an important improvement theme as the industry moves towards electrification due to environmental issues. In this context, our company is working on the development of hollow shaped wires using pipe coil materials. Although the material costs increase by switching to pipe coil materials, the weight reduction offsets this increase, resulting in cases where we have successfully achieved weight reduction at nearly the same price depending on the specifications. Additionally, beyond weight reduction, products have also been commercialized using shaped core materials for lance (cutting rods).

Namitai's parts and components are active in various fields, from global products to everyday items. The required shapes, strengths, and precisions vary greatly. Based on a unique design philosophy from irregular wire, we respond to diverse needs. For a certain automotive parts manufacturer, when producing parts from expensive materials, the challenge was that conventional punching from standard sheet materials resulted in about 80% material loss. [Customer's Challenges and Issues] ■ Improving yield of high-grade steel parts ■ Conventional methods → When producing parts like the one shown from expensive materials, conventional punching from standard sheet materials results in about 80% material loss... <Example case using high-grade steel> - Ring component: Thickness 3mm × Diameter 280mm - Sheet material: Thickness 3mm × 300mm × 300mm - Material mass: 1.2kg (specific gravity 7.9) - Material loss = 1.0kg *For more details, please refer to the PDF document or feel free to contact us.

Our company is committed to "modern manufacturing," starting with the production of nails and evolving through various transformations, including the production of copper shaped wires, growing alongside the times. We manufacture a variety of shaped wires with different cross-sectional shapes, as well as related components. Based on the manufacturing technology of shaped wires that we have cultivated over many years, we cater to a wide range of needs, from everyday life-related fields such as automotive, construction, civil engineering, home appliances, and plants, to global and cutting-edge areas like submarine cables.

At Namitei, while leveraging the applications and functions of our products, we propose product specifications that match our processing characteristics, aiming for cost-effective manufacturing. Please feel free to consult us from the design stage. We are a wire product manufacturer and conduct integrated production up to the component level. In applications such as heat exchange pipes using hollow shaped drawn wire, we propose new parts materials for pipe-in-pipe applications. *For more details, please refer to the PDF materials or feel free to contact us.

Our company specializes in the production of "shaped wire" by processing coil materials through wire drawing and rolling to achieve the desired cross-sectional shape. In addition to enabling lightweight wire and providing anti-slip performance, we can reduce subsequent processes such as cutting and forging, leading to improved yield and reduced processing costs. We also manufacture functional wire materials such as hollow shaped wire and perform shaped cutting with minimal burrs and sagging. 【Features】 ■ Reduces costs in subsequent processes with shapes close to the final product ■ Accommodates various shapes including uneven surfaces, curves, and asymmetrical types ■ Suitable processing for multiple fields such as construction materials, automotive, civil engineering, and home appliances ■ Supports delivery forms such as aligned winding, carrier removal, and bar bundling *For more details, please refer to the materials available for download in PDF format. Feel free to contact us with any inquiries.

General enamel wire (round cross-section) has a filling factor of about 40%, and flat wire has a filling factor of 50-60%. However, ultra-deformed wire has been developed to achieve over 80%. By gradually changing the thickness and width of the flat cross-section without altering the cross-sectional area, it is a special shaped wire that changes its cross-sectional shape along its length. When this wire is wound onto a stator core, a tapered stator coil is completed. When this stator coil is placed in a motor, it fills the gaps between the stator cores, making it possible to achieve a high filling factor. It is also possible to reduce the gaps between the stator coils and apply it to miniaturization, depending on the design. This is a new magnet wire that contributes to the development of high-performance motors with high output, high efficiency, compact size, and lightweight! ● For winding processing, initial samples are available. *Depends on coil specifications. ● For insulation coating, initial samples are available. *Depends on coating specifications. *For more details, please refer to the related links or feel free to contact us.

【What is a Special-Shaped Wire】 It is a wire product that has been processed into various shapes according to customer requirements, rather than the typical cross-sectional shapes like round, square, or hexagonal. By incorporating functionality into the material itself, it can accommodate applications that conventional round or square wires cannot. 【What Can Be Achieved with Special-Shaped Wire】 ◆ Optimal Design 1. Switching Construction Methods - Bringing the cross-section closer to the final product, reducing machining and labor (such as eliminating cutting) - Achieving shapes that are difficult to realize with pressing (press alternative parts) - Manufacturing parts with higher strength than sintered parts (sintering alternative parts) 2. Weight Reduction - Reducing cross-sectional area to achieve lightweight design 3. Increased Surface Area - Expanding surface area in the longitudinal direction, improving heat dissipation, adhesion, and strength 4. Control of Surface Properties - Achieving anti-slip, adhesion, vibration absorption, and heat dissipation effects through surface roughening or uneven processing ◆ Productivity 1. Mass Production Capability - Improving efficiency through continuous production from special-shaped coils 2. Near-Net Shape - Bringing the material closer to the final shape at the material stage, achieving process simplification and labor reduction ◆ Environmental Consideration - By reducing waste through free design and high production efficiency, and achieving process simplification and labor-saving, environmentally friendly manufacturing is made possible.

At Namitei, we propose product specifications that match our processing characteristics while leveraging the applications and functions of our products, aiming for cost-effective manufacturing. Please feel free to consult us from the design stage. When producing parts like those shown in the diagram from expensive materials such as heat-resistant stainless steel or titanium, there was a problem where approximately 80% material loss occurred due to punching from standard sheet materials. In response, we proposed "creating flat coil components from irregular wire." We manufactured flat coil components from trapezoidal irregular wire with a thick outer side. After processing, the cross-section deformed flat with the outer diameter side stretching. If the specifications of the assumed case are followed, an improvement in yield of about 50% can be expected. [Assumed case using alloy titanium material] ■ Ring component: Thickness 3mm × Diameter 280mm ■ Sheet material: Thickness 3mm × 300mm × 300mm ■ Material mass 1.2kg (specific gravity 7.9) ■ Material loss = 1.0kg *For more details, please refer to the PDF document or feel free to contact us.

By using "near-net shape" irregular coils that are pre-processed into shapes close to the final product, rather than using general materials like circles, squares, or hexagons, production can be carried out continuously. This enables a reduction in processing steps and allows for labor-saving and efficiency improvements, leading to a more efficient and smarter way of working.

In order to mass-produce copper components implemented in the base, we propose improvements in "material yield," "reduction of mold costs," "quality stability," and "productivity enhancement" by processing special-shaped wire as the material. (1) Improvement of material yield - In the pressing process, scrap is generated around the product, but by processing special-shaped wire as the material, it is possible to significantly reduce scrap. (2) No need for progressive molds as parts can be mass-produced through cutting and bending processes - If short-length cuts are used, cutting blades can be employed, and for bending, processing can be done with bending jigs, thus reducing initial investments such as progressive molds. (3) Quality stability - Continuous processing of already precisely finished special-shaped wire alleviates variations in each shot. (4) Productivity enhancement - By using long special-shaped wire (500-1,000 kg) as the material, continuous productivity is improved. *Regarding the processing steps for components combined with special-shaped wire (cutting, pressing, forming, bending), we would like to determine this through discussions with the customer, our company, or partners. *For more details, please feel free to contact us.