ナミテイ List of Products and Services

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.

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.

By utilizing our expertise in "special-shaped wires" technology with functional materials, we are collaborating on the development of new components (materials). For EV components, which are advancing in capacity, we propose new methods for enhancing performance, reducing weight, improving heat dissipation, and increasing packing density. By applying "special-shaped wires" to improve the performance of busbars, terminals, heat sinks, and magnetic coils, we can offer suggestions for new development products. [Functional Material Image] Copper, aluminum, electromagnetic soft iron, etc. [Application Image] Busbars, terminals, iron cores, vanes, heat sinks, stators, torque sensors, magnetic shields, etc.

Our company has been producing copper terminal components for EVs for over 10 years, and we have established a quality assurance system that includes a production system utilizing cold forging formers and machining, as well as complete inspection, cleaning, and vacuum packaging. Furthermore, we can also manufacture irregular terminals using our specialty in irregular wire, allowing us to broadly meet the increasing demand for copper terminals and components due to the rise of EVs. 【Features】 ■ Over 10 years of manufacturing know-how for iron cores and contacts ■ Introduction of high-performance cold forging formers ■ Realization of machining-free copper terminal components ■ Cost-effective solutions available ■ High-quality assurance system in place due to vacuum packaging ■ Capability to manufacture irregular shapes

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.

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.

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.

"Shape forging" offers cost advantages by approximating the final shape of parts at the material stage, allowing for the omission and simplification of cutting and forging processes, as well as improving yield. Additionally, compared to other methods, it enhances strength by utilizing toughness and improves quality in terms of precision and surface characteristics. While there are constraints on the freedom of shape due to processing characteristics, we will propose specifications according to the application and function. [Advantages of Shape Forging] ■ Omission and labor-saving of the pressing process ■ Improved yield ■ Increased strength *For more details, please refer to the PDF materials or feel free to contact us.

Our unique shear technology allows for the continuous and high-precision cutting of irregular coils. The proprietary method "Fine Cut" offers excellent flatness of the cut surface, with minimal occurrence of burrs and deformation, enabling some cases to be used directly as components. 【Capabilities of Fine Cut】 ◆ Process Simplification Due to the excellent flatness of the cut surface, it is possible to omit or reduce subsequent processing (such as barreling and machining). ◆ Continuous Production High mass production capability is achieved by continuously cutting from coils. ◆ Dimensional Accuracy - Minimal deformation leads to high length accuracy. - High length accuracy ensures stable weight per piece. *Examples of use: Slag, weights, etc. ◆ Method Switching Enables the switching of sintered parts, pressed parts, and former parts to Fine Cut. *Sintered alternative parts, pressed alternative parts. ◆ Environmental Consideration By achieving simplification and labor-saving through process omission, continuous production, and method switching, we can engage in environmentally friendly manufacturing.

This is a unique solution that uses cold forging technology with irregularly shaped materials to create complex shapes with high precision. It is compatible with both iron-based and copper-based materials, enabling a transition from pressing and cutting methods. There are achievements in a wide range of industries, from automotive parts to construction and building materials. 【Capabilities of Irregularly Shaped Forged Parts】 - Achieves near-net shape, reducing machining and labor costs (cutting-free parts) - Realizes shapes that are difficult to produce with pressing (press alternative parts) - High strength and durability through plastic processing * Parts with greater strength than those produced by sintering can be manufactured (sintering alternative parts) - Simultaneously achieves cost reduction and quality stabilization through method changes.

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.