ナツメ List of Products and Services

We would like to introduce the "Cable Adapter and Transformer Adapter" that we handle. The cable adapter is used when a direct connection between a multi-transformer and secondary cable cannot be made. The transformer adapter is a series connection adapter used when utilizing the secondary circuit of a multi-transformer as a single circuit. 【Features】 ■ Cable Adapter - Used when a direct connection between a multi-transformer and secondary cable cannot be made - Available in two shapes: angle and straight ■ Transformer Adapter - Used when utilizing the secondary circuit of a multi-transformer as a single circuit *For more details, please download the PDF or feel free to contact us.

Natsume Co., Ltd. sells copper alloy materials for electrodes. To ensure quick delivery, we always keep electrode materials in stock, and you can purchase them cut to your desired size. We also offer sales of materials finished by milling and turning, so please feel free to contact us if you have any requests. 【List of Materials in Stock】 ■ Tough Pitch Copper: Sheets and Rods ■ Chrome Copper: Sheets and Rods ■ Alumina Dispersion Copper: Rods ■ Beryllium 50 Alloy: Sheets and Rods ■ Beryllium 25 Alloy: Rods *For more details, please download the PDF or feel free to contact us.

We offer "Repair/Overhaul of Welding Guns and Housing for Seam Welding." We carry out disassembly and cleaning, repair and replacement of degraded and worn parts, replacement of various consumable parts, assembly, and adjustment. Additionally, we process and sell a variety of non-ferrous metal products, including copper, using a wide range of processing technologies. 【Work Contents】 1. Disassembly and cleaning 2. Repair and replacement of degraded and worn parts 3. Replacement of various consumable parts 4. Assembly and adjustment *For more details, please download the PDF or feel free to contact us.

At Natsume Co., Ltd., we perform "copper busbar bending processing." We can accommodate widths up to 350 mm and are capable of "water hole long hole processing" and "four-stage bending processing." Additionally, the materials used are C1100/BSBM/CRCU, and we can handle sizes from t0.6 to t30. Please consult us regarding processing details. 【Features】 ■ Capable of widths up to 350 mm ■ Water hole long hole processing available ■ Four-stage bending processing available ■ Processed using 30t and 100t press machines *For more details, please download the PDF or feel free to contact us.

At Natsume Co., Ltd., we perform "disk processing" capable of up to φ800. We can achieve a perpendicularity and parallelism of ±0.02, and the thickness tolerance can also be processed to ±0.02 depending on the material. Additionally, we accommodate processing from black skin. Please feel free to contact us when you need our services. 【Features】 ■ Processing up to φ800 ■ Perpendicularity and parallelism processing possible up to ±0.02 ■ Thickness tolerance processing possible up to ±0.02 depending on the material ■ Processing from black skin is also possible *For more details, please download the PDF or feel free to contact us.

At Natsume Co., Ltd., we perform "brazing processing" using gas welding and induction heating. We also offer simple water leakage testing and can accommodate products from single items to small lots. Additionally, depending on the product, multiple brazing points can be achieved on a single item. Please feel free to contact us when you need our services. 【Features】 ■ Brazing processing using gas welding and induction heating ■ Simple water leakage testing available ■ Accommodates products from single items to small lots ■ Multiple brazing points possible on a single product ■ Vacuum brazing also available *For more details, please download the PDF or feel free to contact us.

"Chromium copper" is a high-copper alloy that is precipitation-hardened by adding approximately 0.4 to 1.2% chromium to copper. It is characterized by high electrical conductivity, thermal conductivity, heat resistance, and corrosion resistance, along with excellent wear resistance and hardness. These properties make it widely used in applications such as backing plates for semiconductors, backing metal for bearings in gas turbines and steam turbines, and various resistance welding electrodes. Our company is capable of processing chromium copper. You can trust us with small lots, custom matching, short delivery times, large-scale processing, and ultra-precision machining. [Main Features] ■ High electrical and thermal conductivity: Extremely excellent among alloys, suitable for applications handling heat and electricity, such as resistance welding electrodes. ■ High heat resistance and wear resistance: Minimal reduction in hardness and tensile strength even in high-temperature environments, capable of withstanding long-term use. ■ High corrosion resistance and hardness: Resistant to rust, and the alloy is hard enough to produce hard chips during processing. ■ Precipitation-hardened alloy: Hardness and strength can be adjusted and improved through heat treatment (quenching and tempering). *For more details, please download the PDF or feel free to contact us.

"Beryllium copper" is a copper alloy that contains a small amount of beryllium added to copper. While maintaining the excellent electrical and thermal conductivity of copper, it possesses high strength comparable to special steel, excellent spring properties, corrosion resistance, and fatigue characteristics. It is widely used as spring materials and sliding components in fields that require high reliability, such as electronic components, automobiles, and communication infrastructure. Our company is capable of processing beryllium copper. For many years since our establishment, we have been enhancing our expertise in the processing of copper and copper alloys. You can trust us with small lots, custom matching, short delivery times, large-scale processing, and ultra-precision processing. [Main Features] ■ High strength and spring properties: Achieves high tensile strength comparable to special steel through precipitation hardening treatment, making it excellent as a spring material. ■ High conductivity: Depending on the type and condition of the alloy, it has high conductivity and is suitable for components requiring high current density. ■ Excellent fatigue characteristics: It excels in fatigue characteristics against repeated operations, making it suitable for components that require long service life. *For more details, please download the PDF or feel free to contact us.

"Phosphor bronze" is a copper alloy made by adding tin (Sn) and a small amount of phosphorus (P) to copper (Cu). It possesses excellent electrical conductivity, high strength and hardness, corrosion resistance, springiness, and wear resistance, and is widely used in electronic components such as connectors, switches, and relays, as well as in mechanical parts like bearings, gears, and everyday items such as guitars and eyeglass frames. Our company processes and sells a variety of non-ferrous metal products, including copper, using a wide range of processing technologies, and we are also capable of processing phosphor bronze. You can trust us with small lots, matching existing items, short delivery times, large-scale processing, and ultra-precision processing. [Main Characteristics] - High springiness: The addition of phosphorus removes copper oxide, enhancing strength and elasticity, resulting in excellent springiness (elasticity). - Excellent electrical conductivity: Relatively high among copper alloys, making it suitable for electronic component materials. - High corrosion resistance: Possesses strong resistance to chemical corrosion. - High wear resistance: Due to its high hardness, it has strong resistance to friction and wear. - Good workability: Capable of processes such as pressing, bending, and drawing. *For more details, please download the PDF or feel free to contact us.

"Pure copper" refers to high-purity copper with a purity of 99.9% or higher (or 99.90% or higher), which possesses excellent electrical conductivity, thermal conductivity, and workability. Due to its high thermal conductivity and electrical conductivity, it is used in electrical and electronic components, heat exchangers, piping, and more. It is characterized by its antibacterial properties, unique beautiful luster, and the "patina" that develops over time. Our company is capable of processing pure copper. You can trust us with small lots, matching existing items, short delivery times, large-scale processing, and ultra-precision processing. 【Features】 ■ Conductivity and thermal conductivity: High ability to efficiently transmit electricity and heat, showing values second only to silver. ■ Ductility and workability: Soft and rich in ductility (the property of being spread thin) and malleability (the property of being stretched thin), making it easy to process into various shapes such as bending and deep drawing. ■ Antibacterial action: Copper ions have the effect of destroying microbial cell membranes, exhibiting antibacterial properties that greatly exceed general antibacterial effects. ■ Non-magnetic: It does not acquire magnetism and can be safely used in electronic devices and observation instruments that are affected by magnetic fields. *For more details, please download the PDF or feel free to contact us.