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  1. Home
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  3. ナミテイ
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ナミテイ

EstablishmentJuly 7, 1947
capital3000Ten thousand
number of employees140
addressOsaka/Higashiosaka-shi/West Dike 2-2-23
phone06-6788-1131
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last updated:Nov 24, 2025
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Abnormal line Abnormal line
Special-shaped parts Special-shaped parts
Cold forged parts Cold forged parts
Copper terminal components Copper terminal components
Protective irregular wire for submarine optical fibers Protective irregular wire for submarine optical fibers
Automotive-related products Automotive-related products
Related products for architecture Related products for architecture
Related products of industrial machinery. Related products of industrial machinery.
Civil engineering related products Civil engineering related products
Related products of robots Related products of robots
Related products of [communication]. Related products of [communication].
展示会 特設ページ 展示会 特設ページ
Cold

Cold forged parts

Cold-formed components made from deformed wire have enabled the creation of complex shapes through forging from deformed wire.

Namitai Company Profile

We will continue to challenge ourselves in modern manufacturing together with our customers!

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.

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Parts | How to make complex parts from irregular coils

We propose specifications according to the purpose and function! Introducing the benefits of irregular forging, such as omitting the press process and labor-saving.

"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.

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Proposal/Case Study | Examples of Using "Irregular Parts" Utilizing Copper Shaped Wire

Achieving complex shapes through wire processing, press cutting, and cold forging. Contributing to weight reduction and performance improvement of parts.

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.

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Parts | Utilizing irregular wire for "near-net shaping"

Producing components close to the final product using irregular wire and cold forging, achieving a transition from pressing and cutting methods.

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.

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Proposal/Case Study | New Press Parts

Proposal for new press parts (groove processing, uneven surface processing, complex R processing, round R processing, free design of thickness and width shapes, difficult material processing)

By utilizing irregularly shaped wire, we can make parts that were difficult to achieve with conventional press processing possible. With high design flexibility, we provide optimal proposals tailored to our customers' needs from the design stage. 【Examples of processing made possible by our technology】 1. Groove processing: Stable formation of uniform and high-precision grooves. 2. Uneven surface processing: Capable of handling complex three-dimensional shapes in a single formation. 3. Compound R processing and round R processing: Freely accommodating gentle curves and complex curvatures continuously. 4. Free design of thickness and width shapes: High design flexibility for cross-sectional shapes enables lightweighting and strength optimization of parts. 5. Compatibility with difficult materials: Capable of processing high-hardness materials and special steels that are considered challenging. Additionally, new press parts enable waste-free production by pursuing manufacturing efficiency from the design stage. Specifically, the following effects can be expected: 【Environmentally friendly and efficient manufacturing process】 1. Shortening of manufacturing processes. 2. Reduction of material waste. 3. Reduction of labor and effort. 4. Minimization of energy consumption.

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Parts | Relay terminals for industrial equipment and energy sectors

High-quality copper terminals for injection molding machines and press machines.

Since the 2000s, we have established a track record in mass production technology and quality control in the field of terminals for EV relays. We offer two types of manufacturing methods: (1) A combination of cold forging and machining (2) Cold forging only (without machining) We can propose optimal process designs tailored to shape, quality, and quantity. Leveraging our experience with EV relay terminals, we believe we can also expand into the following industrial equipment and energy sectors. ◆ Proposal Examples 【Industrial Equipment and Infrastructure】 High-power motor control for machine tools, injection molding machines, and presses, as well as UPS and DC power supply systems. 【Renewable Energy】 DC cut relays for solar power generation systems and power conversion units for wind power generation. 【Power Supply Infrastructure】 Distribution boards and backup power for data centers, battery energy storage systems (BESS). We believe that the know-how we have gained from manufacturing terminals that withstand "high voltage and high current environments" required in the EV market can also be utilized in the industrial and energy infrastructure sectors.

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