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Copper Bar Product List and Ranking from 9 Manufacturers, Suppliers and Companies | IPROS GMS

Last Updated： Aggregation Period:Feb 11, 2026～Mar 10, 2026
This ranking is based on the number of page views on our site.

Copper Bar Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Feb 11, 2026～Mar 10, 2026
This ranking is based on the number of page views on our site.

  1. 篠原電機 Osaka//others
  2. ホシモト Osaka//Machine elements and parts
  3. エイシンインターナショナル Osaka//Manufacturing and processing contract
  4. 4 イートン・エレクトリック・ジャパン Osaka//Industrial Electrical Equipment
  5. 5 ジャストプロダクツ 本社工場 Aichi//Industrial Electrical Equipment
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Copper Bar Product ranking

Last Updated： Aggregation Period:Feb 11, 2026～Mar 10, 2026
This ranking is based on the number of page views on our site.

  1. Copper bar / crossing bar branch bus copper bar 篠原電機
  2. To customers who manufacture copper products in-house for control panels and distribution boards. エイシンインターナショナル
  3. Key points for selecting the "cross-sectional area" of copper bars to achieve cost reduction. ホシモト
  4. 4 Flexible Copper Bar (Electrostatic Wire) CU-BAND イートン・エレクトリック・ジャパン
  5. 5 Key points for selecting the "length" of copper bars to achieve cost reduction. ホシモト

Copper Bar Product List

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To customers who manufacture copper products in-house for control panels and distribution boards.

To customers who manufacture copper products in-house for control panels and distribution boards.

We assist in reducing labor hours and costs through the outsourcing of copper processing.

Eishin International supports your manufacturing with copper processing. ■Features■ Utilizing a network derived from trading companies, we directly import copper materials from overseas (domestic materials can also be procured). To meet the demands of domestic customers for copper processing and to enhance service with shorter delivery times, we process at two domestic locations (Osaka Prefecture and Aichi Prefecture) within the Eishin Group. We have introduced the latest dedicated machines for copper busbar processing from Germany and promote digital transformation (DX) to address the shortage of personnel in the industry and among customers. We handle everything from mass-produced items for power distribution equipment to custom-made products, as well as tin, nickel, and other plating treatments. Our company provides comprehensive services for electrical copper in the power distribution industry and offers a one-stop solution for management through the outsourcing of copper bar processing! ■Benefits of Outsourcing Copper Bar Processing■ 1. Liberation from material procurement, storage, and financial management. 2. Ability to perform processing that cannot be done with in-house equipment, eliminating the need for plating treatment. 3. Savings in processing time, resolution of personnel shortages, and freedom from processing errors. As a result, we can allocate personnel to assembly wiring and inspection, thereby improving productivity.

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  • Non-ferrous metals
  • Copper Bar

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Key points for selecting the "materials" of copper bars to achieve cost reduction.

Key points for selecting the "materials" of copper bars to achieve cost reduction.

Selection knowledge for copper bars (main bars and branch bars): Choose with material properties in mind! Increase efficiency!

【Before】 ■Types of copper materials used in copper bars When using copper bars, while there may be a selection of surface treatments such as nickel plating or tin plating, there has been no consideration of the materials of the copper itself. As a result, we have been selecting and adopting copper materials without knowing whether they are suitable for the operating environment of our panels. ↓ 【After】 ■Types of copper materials used in copper bars and conductivity When selecting copper bars, determining the materials based on the internationally accepted annealed standard soft copper conductivity, known as IACS, allows for efficient current flow. While there may not be much difference in standard copper bars, it is possible to achieve energy savings by selecting custom copper bars designed to carry high-capacity power. *For more details, please refer to the catalog or feel free to contact us.

  • others
  • Control Panel
  • Copper Bar

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Key points for selecting the "dimensions" of custom copper bars to achieve cost reduction.

Key points for selecting the "dimensions" of custom copper bars to achieve cost reduction.

Knowledge for Selecting Copper Bars (Main Bars and Branch Bars): Reducing processing costs and overall cost reduction!

【Before】 When determining the dimensions of copper bars used for carrying large currents, such as in power distribution boards, there were no clear internal standards, and we were directly repurposing from past drawings. The large cross-sectional area copper bars were not standard products from manufacturers, and we were ordering them as custom items each time, which led to high material costs for copper and processing costs for specified dimensions, becoming a problem. ↓ 【After】 The key points for selecting custom copper bars are that referring to the size charts from material manufacturers can help reduce processing costs. Since the dimensions of copper bars intended for carrying current do not require high precision in material dimensions, it is efficient to design them to match the original material dimensions as closely as possible. Although there is a standard length for each material, determining the dimensions of copper bars that do not require complex machining can achieve cost reductions. *For more details, please refer to the catalog or feel free to contact us.*

  • Control Panel
  • others
  • Copper Bar

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Key points for selecting the "cross-sectional area" of copper bars to achieve cost reduction.

Key points for selecting the "cross-sectional area" of copper bars to achieve cost reduction.

Knowledge for Selecting Copper Bars (Main Bars and Branch Bars) - Ensuring Safety by Selecting According to Official Guidelines

【Before】 The selection of the cross-sectional area of the copper bar based on the flowing current has been done using the catalog values from copper bar manufacturers. However, since the allowable current values differ among manufacturers even for the same cross-sectional area, we have prioritized safety by selecting larger cross-sectional areas of copper bars, which has led to increased material costs. ↓ 【After】 When determining the cross-sectional area of the copper bar based on the rated current, it is common to refer to the Japan Electric Power Control System Industry Association standard JSIA303 for cabinet-type distribution boards (III04-2). When prioritizing safety, it is possible to apply the above formula to select the necessary cross-sectional area. *For more details, please refer to the catalog or feel free to contact us.

  • Control Panel
  • others
  • Copper Bar

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Key points for selecting the "height" and "width" of copper bars to achieve cost reduction.

Key points for selecting the "height" and "width" of copper bars to achieve cost reduction.

Selection Knowledge for Copper Bars (Main Bars and Branch Bars): Choose Standard Product Dimensions for Higher Quality Products!

【Before】 The copper bar determines its cross-sectional area (height × width) based on the flowing electrical capacity, but the "height" and "width" that determine the cross-sectional area are fixed combinations of standard dimensions. If the copper bar is designed outside the "height" and "width" specified in the table above, it will deviate from the standard product, resulting in increased costs and delivery times. ↓ 【After】 Once the required cross-sectional area of the copper bar is determined, the next step is to decide on the dimensions of the copper bar to be used. At this point, among the standard dimensions (height × width), for a "height" of 3mm, the "width" can be 12mm or 15mm; for a "height" of 4mm, the "width" can be 12mm, 15mm, or 20mm, etc. By selecting from standard copper bar dimensions, it is possible to achieve cost reduction and shortened delivery times for material procurement from the design stage. *For more details, please refer to the catalog or feel free to contact us.*

  • Control Panel
  • Copper Bar

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Key points for selecting the "length" of copper bars to achieve cost reduction.

Key points for selecting the "length" of copper bars to achieve cost reduction.

【Knowledge for Selecting Copper Bars (Main Bars and Branch Bars)】 The key is the length that improves the yield rate!

【Before】 The criteria for selecting copper bars during the design of distribution boards and control panels is based on the current capacity (A) flowing through them, which tends to give the most weight to the cross-sectional area (width × height). Therefore, the "length" of the copper bars is often less considered, leading to an increase in the overall cost of the panel. Among them, the copper bars connected to the main breaker have a relatively large cross-sectional area, and three bars are required for three-phase systems, making it necessary to optimize the "length" of the copper bars themselves. ↓ 【After】 By understanding the "length" dimensions of standard raw material (at the time of purchase) copper bars, it becomes possible to design the optimal "length" of copper bars. Particularly when copper bars exceeding 600mm in "length" are required, it becomes difficult to obtain the three necessary copper bars for three-phase systems from a single raw material copper bar. By considering the number of bars obtained and the yield rate from the design stage, the cost of conventional copper bars was reduced by one-fourth. *For more details, please refer to the catalog or feel free to contact us.*

  • Control Panel
  • Copper Bar

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Busbar, busbar, copper bar

Busbar, busbar, copper bar

From prototype to mass production using C1100 tough pitch copper and C1020 oxygen-free copper!

We will prototype and mass-produce busbars, which are conductors for conducting electric current, from copper plates and copper round bars. [The photo is an example.] Please inquire about other shapes. We have experience with plate thicknesses up to 20 mm. By consulting with us from the prototype stage, we can provide proposals that take into account issues related to mass production processing. We can also perform surface treatments such as tin plating and nickel plating, which are post-processing steps after press processing, and deliver the finished products. ■ Copper Materials These are materials with extensive processing experience at Wada Seisakusho. - C1100 (Tough Pitch Copper) - C1020 (Oxygen-Free Copper) - C2801 (Brass) - HSM (Copper Wire)

  • Other energy equipment
  • Other electronic parts
  • Copper Bar

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Copper Parts Processing Example: Copper Bar

Copper Parts Processing Example: Copper Bar

For the power distribution and control panel industry! We provide original parts made of copper materials!

This is a case study from Just Products, a manufacturer specializing in copper bars located in Kasugai City, Aichi Prefecture. The characteristics of copper make it difficult to process compared to iron and stainless steel, and the material is expensive. Despite being a metal with excellent properties, the reality is that there are few factories skilled in processing copper due to its unique characteristics. Just Products is committed to processing copper and considers it a strength. [Case Study] - Copper bars assembled in an orderly horizontal and vertical manner - Innovations to prevent bending marks *For more details, please refer to the PDF document or feel free to contact us.

  • Other electronic parts
  • Contract manufacturing
  • Copper Bar

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Copper Processing and Flow

Copper Processing and Flow

Pursuing absolute reliability! Introducing Just Products' copper processing and flow.

The characteristics of copper are that it is more difficult to process compared to iron and stainless steel, and the material is expensive. Despite being a metal with very excellent properties, the reality is that there are few factories skilled in processing copper due to its unique characteristics. Just Products is committed to the processing of copper and considers it a strength. For hole drilling and bending, it is not enough for the dimensions indicated in the drawings to be correct. Copper bars are "conductors of electricity." We consider suitable processing methods that do not put undue stress on the material. We carefully examine each processing method to ensure that it can fulfill its function as a conductor until the electrical equipment has completed its role. 【Processing Flow】 ■ Machining ■ Bending ■ Drilling ■ In-process inspection after processing ■ Plating completed *For more details, please refer to the PDF document or feel free to contact us.

  • Other electronic parts
  • Contract manufacturing
  • Processing Contract
  • Copper Bar

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Service: Copper bar manufacturing

Service: Copper bar manufacturing

Manufacturing copper bars that branch out the electricity in control panels! We will propose suitable shapes according to your application.

Kimura Control Systems Co., Ltd. manufactures "copper bars." We produce copper bars that branch electricity within control panels. We propose suitable shapes according to the application. 【Features】 ■ Manufacturing copper bars that branch electricity within control panels ■ Proposing suitable shapes according to the application *For more details, please refer to the external link page or feel free to contact us.

  • Control Panel
  • Copper Bar

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Recommendation for Copper Bar Wiring

Recommendation for Copper Bar Wiring

Introducing the advantages and disadvantages of copper bar wiring, which is different from wiring using electric wires!

Recently, we will explain the advantages and disadvantages of copper bar wiring, which is increasingly being adopted by major manufacturers, in our catalog. Why go through the trouble of using copper bars for wiring when the unit price is higher? If you're interested, please download the PDF!

  • Processing Contract
  • Copper Bar

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Copper bar / crossing bar branch bus copper bar

Copper bar / crossing bar branch bus copper bar

Custom-sized products can also be manufactured! Busbar copper bars for branching with pre-processed screw holes.

The "branch bus copper bar" is used as a bus bar for control panels and distribution boards, as well as for branch bus bars. Since the screw holes are pre-processed, the hassle of tapping is eliminated. We offer seven types of standard products ranging from 100A to 400A. You can cut them according to your needs for use. Additionally, we also accept orders for custom dimensions. 【Features】 ■ Pre-processed screw holes ■ Eliminates the hassle of tapping ■ A lineup of seven standard products from 100A to 400A ■ Can be cut according to application ■ Material: Copper plate with nickel plating finish *For more details, please refer to the PDF document or feel free to contact us.

  • Board materials
  • Control Panel
  • Distribution Board
  • Copper Bar

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Flexible Copper Bar (Electrostatic Wire) CU-BAND

Flexible Copper Bar (Electrostatic Wire) CU-BAND

Combining flexibility and power - Connecting your energy needs fluidly.

Main Features: Flexible copper bar (electrified wire) CU-BAND that sets a new standard 【Conductor Material】 - High conductivity Cu-ETP 99.9 - Tin-plated thin copper sheet - Suitable for drilling and punching 【Insulation】 - Reinforced edges to improve resistance - High operating voltage - Homogeneous and stress-free insulation (no edge bursting) - Higher thermal short-circuit resistance compared to bars and cables of the same class - Abundant color variations - Self-extinguishing in accordance with UL94 V0 【General Specifications】 - Rated operating voltage: 1000 VAC / 1500 VDC (UL standard below 600 VAC) - Insulation resistance: 20 kV/mm - Insulator heat resistance temperature: up to +105 °C - Length: 2000mm - UL certified

  • others
  • Copper Bar

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Copper bar

Copper bar

Semiconductor device connection bar

This is a semiconductor device connection bar made from a 3.0mm copper plate. After the cutting process is completed, hole processing for 9π and 6.5π, as well as tapping at three locations, will be performed. Next, chamfering will be done, and bending will be carried out with a bender, completing the main processing. A first inspection will be conducted, followed by a final inspection after nickel plating is completed. The production time, including the plating process, is estimated to be around 2 to 3 days.

  • Other semiconductors
  • Copper Bar

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[Copper Parts Processing Example] For Cubicles

[Copper Parts Processing Example] For Cubicles

For the power distribution and control panel industry! We provide original parts made of copper materials!

This is a case study from Just Products, a manufacturer specializing in copper bars located in Kasugai City, Aichi Prefecture. The characteristics of copper make it difficult to process compared to iron and stainless steel, and the material is expensive. Despite being a metal with excellent properties, the reality is that there are few factories skilled in processing copper due to its unique characteristics. Just Products is committed to processing copper and considers it a strength. [Case Study] ■ 15t x 150w for cubicles *For more details, please refer to the PDF document or feel free to contact us.

  • Other electronic parts
  • Contract manufacturing
  • Copper Bar

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[Case Study of Copper Parts Processing] Products Incorporated in Power Distribution Panels

[Case Study of Copper Parts Processing] Products Incorporated in Power Distribution Panels

For the power distribution and control panel industry! We provide original parts made of copper materials!

This is a case study from Just Products, a manufacturer specializing in copper bars located in Kasugai City, Aichi Prefecture. The characteristics of copper make it difficult to process compared to iron and stainless steel, and the material is expensive. Despite being a metal with excellent properties, the reality is that there are few factories skilled in processing copper due to its unique characteristics. Just Products is committed to the processing of copper and considers it a strength. [Case Study] - Products incorporated into a power distribution board - 12t × 200W - The precision of double wiring in parallel is a testament to our technical capabilities. *For more details, please refer to the PDF document or feel free to contact us.

  • Other electronic parts
  • Contract manufacturing
  • Copper Bar

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[Case Study of Copper Parts Processing] Main Bus and Branch Bus Incorporated in Power Distribution Board

[Case Study of Copper Parts Processing] Main Bus and Branch Bus Incorporated in Power Distribution Board

For the power distribution and control panel industry! We provide original parts made of copper materials!

This is a case study from Just Products, a manufacturer specializing in copper bars located in Kasugai City, Aichi Prefecture. The characteristics of copper include its difficulty in processing compared to iron and stainless steel, as well as its high material cost. Despite being a metal with excellent properties, the reality is that there are few factories skilled in processing copper due to its unique characteristics. Just Products is committed to the processing of copper and considers it a strength. [Case Study] ■ Main bus bars and branch bus bars incorporated in a power panel *For more details, please refer to the PDF document or feel free to contact us.

  • Other electronic parts
  • Contract manufacturing
  • Copper Bar

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Just Products Strengths

Just Products Strengths

We connect the world's electricity with our technology and trust!

Our company can handle everything from single items and very small lots to large projects and mass production of single products. Rather than solely pursuing the "lowest price," we consistently emphasize the PDCA cycle in our daily operations, particularly focusing on "check" and "act" to drive improvements. We believe that continuous improvement is our mission, as it eliminates waste, pursues efficiency, and ensures we always provide a "fair price," ultimately delivering true "safety" and "trust." Additionally, we leverage our strengths to provide reliable and trustworthy products, including obtaining the international standard certification for quality management systems, "ISO9001," and conducting training so that everyone can support short delivery times. **Strengths** - Capable of handling everything from single items and very small lots to large projects and mass production of single products - All employees are multi-skilled - Supporting your BCP (Business Continuity Plan) - Obtained ISO9001-2008 certification for quality management systems *For more details, please refer to the PDF document or feel free to contact us.*

  • Other electronic parts
  • Contract manufacturing
  • Processing Contract
  • Copper Bar

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