ヤマキン List of Products and Services

Yamakin Co., Ltd. started as a non-ferrous metal sales company in 1916 and has since developed into a manufacturer of flat bars and coiled wires made of copper, brass, aluminum, and zinc. The products we manufacture play a crucial role by being integrated into systems, serving as an indispensable and attractive presence that supports operations behind the scenes. Our company is based on made-to-order production, and we aim to further improve quality and ensure reliability to meet our customers' needs. 【Production Process】 ■ Shape processing (plastic processing) ■ Heat treatment and plastic processing ■ Rewinding process ■ Insulation processing ■ Quality confirmation ■ Shipping preparation/shipping *For more details, please refer to the PDF document or feel free to contact us.

• Winding Machine
• Other electronic parts
• Other Auto Parts

Yamakin started as a non-ferrous metal sales business in 1916 and has since developed into a manufacturer of flat copper, brass, aluminum, and zinc wire and coiled wire. To accommodate a variety of products in small quantities with short delivery times, we change our production line six to seven times a day at peak times. Since the dimensions of materials change with temperature fluctuations, temperature management of the rolling mill is a crucial factor. Additionally, the rolling mill was a machine purchased by our predecessor in the United States, which means that all our wire products are manufactured through rolling. We are the only company in Japan that manufactures exclusively through rolling, giving us an advantage in offering a variety of products in small quantities with short delivery times. The introduction of the industry's first continuous patch system has reduced lead times to one-third to one-fourth. This has further accelerated our differentiation from competitors in terms of short delivery times. In the future, we will shift our focus from copper wire to aluminum wire, which has raw material costs less than half that of copper. Although aluminum has a conductivity that is 62% that of copper, we will address this by increasing the wire diameter. Since the rolling mill introduced by our predecessor was designed for aluminum, we possess significant know-how in aluminum wire production, and the rising prices of copper have also boosted demand.

• Processing Contract

Yamakkin is a manufacturer of flat wires and coiled wires made of copper, brass, aluminum, and zinc. Our "various flat wires, shaped wires, and round wires" are products that we excel at and are characterized by the flat and shaped processing technology we have cultivated since the company's inception. Their applications range from functional components for electrical equipment (connector pins, contacts, terminals, etc.) to automotive parts and medical masks, and we process flat and round wires made of copper (C1100), pure aluminum (A1070), aluminum alloys, and square wires made of brass (C2700). 【Features of Flat Wires】 ■ No "return" on the edges and the shape can be freely selected Compared to bars, there is no "return" on the edges, and we can manufacture the edge shape according to your preferences. Therefore, the edges can be directly used as the sides of components, significantly improving material yield and contributing to cost reduction. ■ High dimensional accuracy for thickness and width We can finish with a precision of ±3/100 mm for thickness and ±5/100 mm for width.

• Processing Contract

"Various flat wires, shaped wires, and round wires" are products that leverage the flat and shaped processing technology cultivated since the company's inception, making them our specialty and a distinctive feature of our offerings. We process flat and round wires made of copper (C1100), pure aluminum (A1070), aluminum alloys, and square wires made of brass (C2700). 【Features of Flat Wires】 ■ Large coil weight without welding ■ No "return" on the edges, allowing for freely selectable shapes ■ High dimensional accuracy for thickness and width (accuracy within ±3/100 mm for thickness and ±5/100 mm for width) <Examples of Applications> Functional components for electrical equipment (connector pins, contacts, terminals, etc.), automotive parts, and medical masks, etc.

• Other Auto Parts
• Processing Contract

Yamakkin is a manufacturer of flat wires and coiled wires made from copper, brass, aluminum, and zinc. Utilizing rolling technology for flat wire production, we manufacture bare flat wires for coil winding used in transformers, welding machines, reactors, lifting magnets, and insulated paper-wrapped wires using materials from reliable major wire manufacturers, including craft paper, amine-added paper, Nomex paper, and PEN film. We consistently produce everything from conductor manufacturing to final paper-wrapped products, maintaining a robust quality control system and striving for short delivery times and high-quality products. **Features** - **Wide range of flat wire manufacturing**: We possess numerous types of flat rolling mills, allowing for a wide range of production in both width and thickness. We can manufacture copper and aluminum with a width-to-thickness ratio of up to approximately 15:1 compared to drawn processing. - **Small variation in taping pitch and winding strength**: Our unique paper winding machine allows for very small variations in winding pitch, and the winding strength can be precisely controlled, ensuring stable insulation properties. - **Ability to wind onto large drums, contributing to reduced loss**: For copper, we can deliver various drum configurations up to 400 kg, and for aluminum, up to 150 kg, according to customer requests.

• Processing Contract

Yamakkin is a manufacturer of flat copper/aluminum wire and winding wire. We mainly produce bare flat wire for winding, utilizing our flat wire manufacturing technology based on rolling methods, as well as insulated paper-wrapped wire using materials such as amine-added paper, Nomex paper, PEN film, and mica tape, all made with reliable materials from major wire manufacturers. The applications include various uses such as transformers, welding machines, reactors, and lifting magnets. We consistently manufacture from conductor production to final paper-wrapped products, striving for short delivery times and high quality under a robust quality control system. If you are having trouble sourcing flat wire, please contact us! 【Features】 ■ Stable quality of conductor materials ■ Adaptable to various types, small quantities, and short delivery times ■ Well-established quality control system during the manufacturing process ■ Wide range of flat wire manufacturing ■ Minimal variation in taping pitch and winding strength ■ Can be wound onto large drums, contributing to reduced waste ★ Consultation is available for copper under 400 kg and aluminum under 150 kg ★ If you are facing issues with short delivery times or small lots, feel free to consult with us! *For more details, please contact us or download the PDF.

• Other electronic parts
• Processing Contract
• Inductor Coil

At Yamakin Co., Ltd., we primarily focus on made-to-order production, manufacturing mainly copper and aluminum flat wires and horizontally wound electric wires. We consistently produce flat conductors and paper-wound products, continuously improving quality, speed, and cost, with the aim of creating products that our customers can trust and be satisfied with. 【Features】 ■ A high-quality management system is in place. ■ Due to the rolling method used for flat wire production, we can accommodate a wide variety of products in small quantities with short delivery times. *For more details, please visit our website or feel free to contact us.

• Winding Machine