石垣商店 Product Lineup

Copper busbars are materials with excellent conductivity, but they are prone to reacting with oxygen and sulfur in the air, which can lead to oxidation and discoloration, potentially affecting performance. Therefore, surface treatments such as tin plating, silver plating, and nickel plating are applied according to the application, and it is important to correctly understand the differences and appropriate uses of each. This document clearly explains the reasons why plating is necessary for copper busbars, as well as the characteristics and applications of each type of plating. Our company is capable of manufacturing copper busbar products, and we can flexibly accommodate everything from prototyping to mass production, including drilling and bending processes tailored to the drawings. In addition, we have a wide range of processing achievements for copper busbar products with thicknesses from 3mm to 20mm for transformer manufacturers and panel manufacturers in the Tokai region, processing a total of 150 tons of copper annually as a specialized copper processing company. We have a consistent production system from order to processing, plating, and delivery/shipping, allowing us to respond quickly with drawings and order forms! Hand-drawn designs are acceptable! We truly accept orders starting from just one piece! Urgent orders are welcome!

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Copper busbars and aluminum busbars are both conductive materials used in power equipment, but they have significant differences in conductivity, weight, cost, and strength. For example, copper has high conductivity and strength, making it suitable for high current applications, while aluminum is lightweight and cost-effective, so the optimal selection varies depending on the application. This document clearly compares the differences between copper and aluminum in terms of conductivity, mechanical strength, weight, workability, and cost, and explains the key points for selection. Our company is capable of manufacturing copper busbar products, with a wide range of processing achievements for thicknesses from 3mm to 20mm. We have an annual processing record of 150 tons of copper and can provide a consistent service from order to processing, plating, and delivery. Hand-drawn designs are welcome! We can accommodate orders starting from one piece! Please consult us for urgent requests.

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At Copper Busbar.com, we manufacture copper busbar products under a quality management system certified to ISO 9001:2015. When considering new business partners, many customers place significant importance on verifying whether the company has obtained quality management systems such as ISO. We implement thorough quality control at every stage, from material acceptance inspection to processing and pre-shipment inspection. We also ensure regular calibration of measuring instruments such as calipers and various gauges, establishing an inspection system compliant with ISO standards. Additionally, we manage production through barcode tracking for each product, ensuring progress status and traceability. This enables us to achieve stable quality and reliable delivery times. Furthermore, we have extensive processing experience with copper busbar products in a wide range of thicknesses from 3mm to 20mm for transformer manufacturers and panel manufacturers in the Tokai region, processing as much as 150 tons of copper annually. Our integrated production system allows us to respond quickly with drawings and order forms! Hand-drawn designs are acceptable! We truly accept orders from just one piece! Urgent orders are welcome!

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Leveraging over 70 years of copper processing technology, we accommodate a wide range of copper processing, starting with copper busbar processing. Utilizing diverse processing equipment such as press punching, press bending, machining cutting, lathe processing, and thread rolling, we perform processing tailored to various applications. We have established a one-stop system that covers everything from material procurement to processing and plating, delivering high-quality finished products to our customers. In bending processing, we handle copper busbar processing with a plate thickness of t2 to 20mm and a maximum length of 3,000mm. We also have a track record of special bending processes such as wise bending (horizontal bending) and twisting bending of copper busbars. Additionally, in machining processing using machining centers, we can accommodate high-precision dimensional control of ±0.01mm, enabling the processing of complex shapes such as square holes, grooves, and steps. Moreover, we have a wide range of processing achievements for copper busbar products with thicknesses from 3mm to 20mm for transformer manufacturers and panel manufacturers in the Tokai region, processing as much as 150 tons of copper annually as a specialized copper processing company. Our integrated production system allows us to respond quickly with drawings and order forms from order to processing, plating, delivery, and shipping! Hand-drawn designs are acceptable! We truly accept orders from just one piece! Urgent orders are welcome!

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Copper busbars are important conductive components used in power equipment, control panels, transformers, and other applications to efficiently distribute large currents. Our company specializes in the processing of copper busbars for power equipment, offering various machining services such as drilling, bending, and cutting according to drawing specifications. We are flexible in accommodating everything from prototypes to mass production, and we also welcome inquiries for small lots and custom processing. In addition, we have a wide range of processing achievements for copper busbars with thicknesses from 3mm to 20mm for transformer manufacturers and panel manufacturers in the Tokai region, processing as much as 150 tons of copper annually as a specialist in copper processing. We have a consistent production system from order to processing, plating, and delivery, allowing us to respond quickly with just a drawing and order form! Hand-drawn designs are acceptable! We truly accept orders from just one piece! Urgent orders are welcome!

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Product Introduction At Ishigaki Shoten, after processing copper busbars, we deliver them with "tin plating," "silver plating," and "nickel plating." What sets the relationship between Ishigaki Shoten and the plating companies apart from other regions is the strong local bond built over many years of mutual support within the transformer manufacturers' market in Aichi Prefecture. In times of trouble, we maintain a spirit of mutual assistance, which fosters a good relationship with the plating companies. However, we do not compromise on quality control; we evaluate whether we can continue operations annually in accordance with ISO 9001, and whether there is any variation in quality, based on external management criteria. We deliver copper busbar products through a regional network cultivated with transformer manufacturers and panel manufacturers in the Tokai region! In addition, we have a wide range of processing achievements for copper busbar products with thicknesses from 3mm to 20mm for transformer manufacturers and panel manufacturers in the Tokai region, processing as much as 150 tons of copper annually as a specialized copper processing company. With a consistent production system from order to processing, plating, and delivery/shipping, we respond quickly with drawings and order forms! Hand-drawn designs are acceptable! Truly, we can handle orders from just one piece! Urgent orders are welcome!

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Product Introduction Our company adopts "TIG welding" to accommodate various shapes and plate thicknesses. TIG welding is a technique that uses approximately 100A to 180A of electric heat and inert gas to melt the joining parts of the materials and manually join them. Copper's excellent conductivity can be a disadvantage in welding, as the electricity flowing through the weld can be transmitted in all directions. Therefore, it is necessary to have the experience to visually assess the melting of the materials and determine whether they are being welded, as electricity does not accumulate at the joint. To achieve high-quality welding, it is crucial to manage temperature through uniform preheating, temperature measurement, and welding; it is not an exaggeration to say that the quality of welding is determined by the preheating! Welding allows for sizes that exceed the width of commercially available copper busbars and enables shapes that can only be achieved through welding, thus expanding the range of product shapes. "I wonder if we can make this shape...?" Please feel free to consult with us. In addition, we have a wide range of processing achievements for copper busbar products with thicknesses from 3mm to 20mm for transformer manufacturers and panel manufacturers in the Tokai region, processing 150 tons of copper annually as a specialized copper processing company. We have a consistent production system from order to processing, plating, and delivery/shipping, allowing us to respond quickly with drawings and order forms!

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This is a copper spacer that we manufacture almost every day. Once the basic transformer is produced and passes the power-on test, it is disassembled and reassembled on-site. At that time, it is necessary to connect the existing power receiving section and the copper busbars inside. The "copper spacer" is what connects them with bolts. Of course, this spacer is also made of copper busbars, so it has excellent conductivity! Although small, it is an indispensable behind-the-scenes player. In addition, we have a wide range of processing achievements for copper busbar products with thicknesses from 3mm to 20mm for transformer manufacturers and panel manufacturers in the Tokai region, processing as much as 150 tons of copper annually as a specialized copper processing company. We have a consistent production system from order to processing, plating, and delivery/shipping, so we can respond quickly with drawings and order forms! Hand-drawn designs are acceptable! Truly, we can handle orders from just one piece! Urgent orders are welcome! (This product is a "flexible busbar," which is a power transmission component capable of controlling large currents at the substation level.)

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This product is a "copper busbar twist bend" used inside transformers to control large currents at the substation level. It is a 6mm x 50mm copper busbar that can control approximately 600A of electricity! In fact, this product was created based on an idea from a worker installing transformers, who mentioned during a casual conversation with a transformer manufacturer supplied by Ishigaki Shoten that it took a long time to connect and install multiple copper busbars, saying, "It would be easier if this product could rotate around..." We have received orders from transformer manufacturers and panel manufacturers in the Tokai region, with plate thicknesses of 3mm, 4mm, 5mm, 6mm, 8mm, and 10mm, and a width of 100mm (we have a record of 150mm width for the 6x150 model). Why not make installation easier with a single twist bend of the copper busbar? In addition, we also have a wide range of processing achievements for copper busbar products with thicknesses from 3mm to 20mm for transformer manufacturers and panel manufacturers in the Tokai region, processing 150 tons of copper annually as a specialized copper processing company. We have a consistent production system from order to processing, plating, and delivery/shipping, allowing us to respond quickly with drawings and order forms! Hand-drawn diagrams are acceptable! Truly, we can handle orders from just one piece! Urgent orders are welcome!

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Copper busbars use materials suited for various applications, such as C1100 (tough pitch copper) and C1020 (oxygen-free copper). In high-current applications like power equipment, control panels, and transformers, the precision and processing quality of the busbars are crucial. Our company is equipped to manufacture copper busbar products, performing processes such as drilling, bending, and cutting according to the specifications in the drawings. We can flexibly accommodate processing based on the drawings. In addition, we have a wide range of processing achievements for copper busbar products with thicknesses from 3mm to 20mm for transformer manufacturers and panel manufacturers in the Tokai region, processing as much as 150 tons of copper annually as a specialized copper processing company. We have a consistent production system from order to processing, plating, and delivery, allowing us to respond quickly with drawings and order forms! Hand-drawn designs are acceptable! We can really handle orders starting from just one piece! Urgent requests are welcome!

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Copper busbars are essential conductive components used in power equipment and industrial machinery to safely and efficiently distribute high currents. Our company is equipped to manufacture copper busbar products for such power equipment. We can perform processing tailored to drawings, including drilling and bending, and we flexibly accommodate everything from prototypes to mass production. In addition, we have a wide range of processing achievements for copper busbar products with thicknesses from 3mm to 20mm for transformer manufacturers and panel manufacturers in the Tokai region, processing as much as 150 tons of copper annually as a specialist in copper processing. We have a consistent production system from order to processing to plating to delivery and shipping, allowing us to respond quickly with drawings and order forms! Hand-drawn designs are acceptable! We truly accept orders from just one piece! Urgent orders are welcome!

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The product is a copper busbar with a thickness of 3mm and a width of 25mm. It was originally considered for wiring, but in order to minimize power loss, it has been changed from wiring assembly to production using a copper busbar. The material used is C1100. We will strive for better product development through frequent discussions from the design stage. Please feel free to contact us when you need our services. 【Specifications】 ■Size: 3×25 ■Material: C1100 ■Lot: 10 ■Estimated delivery time: 1 to 2 weeks *For more details, please refer to the related links or feel free to contact us.

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We would like to introduce our "Copper Busbars for Control Panels." This product is a copper busbar used inside distribution boards within facilities. It is a long and narrow product with a thickness of 4mm, a width of 15mm, and an overall length of approximately 200mm, but it can effectively distribute electricity. Ultimately, it will be delivered in its copper base with tin plating and nickel plating applied. The material used is C1100. 【Specifications】 ■ Size: 4×15 ■ Material: C1100 ■ Lot: 100 ■ Estimated Delivery Time: 1 to 2 weeks *For more details, please refer to the related links or feel free to contact us.

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Ishigaki Shoten Co., Ltd. will be exhibiting at the "JECA FAIR 2026 - 74th Electrical Industry Exhibition" held at Tokyo Big Sight. This exhibition is one of the largest comprehensive electrical equipment exhibitions in Japan, showcasing a variety of information, including the introduction of new products related to electrical equipment, tools, measuring instruments, software, and systems, as well as construction techniques, achievements, academic presentations, and various events highlighting the appeal and working styles of the electrical equipment industry. We look forward to your visit. 【Event Overview】 ■ Venue: Tokyo Big Sight (Tokyo International Exhibition Center) Halls 1, 2, 3, and 8 ■ Address: 3-10-1 Ariake, Koto-ku, Tokyo 135-0063 ■ Admission: Free *For more details, please refer to the related links or feel free to contact us.

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This product is a "flexible busbar," a conductive component capable of controlling large currents at the substation level. It is made by stacking 0.2 mm copper coil material, drilling bolt holes, and bending it to absorb vibrations. In addition to the shape shown in the photo, there are also flexible busbars for bow-type spot welders. It is referred to by various names such as flexible busbar, secondary copper strip, flexible copper strip, and copper plate, but its applications are almost the same. It is used as a final cushioning component for vibration absorption and thermal expansion. Since it is made by stacking multiple layers of C1100 copper coil material, it has excellent conductivity; however, drilling and bending require skilled techniques, and there are few companies capable of processing it. Additionally, we have a wide range of processing achievements for copper busbar products with thicknesses from 3 mm to 20 mm for transformer manufacturers and panel manufacturers in the Tokai region, processing as much as 150 tons of copper annually as a specialized copper processing company. We have a consistent production system from order to processing, plating, and delivery/shipping, allowing us to respond quickly with drawings and order forms! Hand-drawn diagrams are acceptable! We can handle orders starting from just one piece! Urgent requests are welcome!

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We would like to introduce the "Top 3 Specialties" of Ishigaki Shoten Co., Ltd. Originally a wholesaler of copper and brass sheets, we source directly from primary wholesalers, eliminating unnecessary markup on material costs. Additionally, we can bend materials at various angles and accommodate various types of plating, including tin plating, nickel plating, and silver plating. 【Specialties】 ■ Procurement routes from our copper sheet wholesale days are still active ■ Capable of bending at various angles ■ Able to handle tin plating, nickel plating, silver plating, and more *For more details, please refer to the related links or feel free to contact us.

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We will introduce the quality symbols for copper and copper alloys. Metals possess various properties based on their components and compositions, but by changing the metal structure through heat treatment and processing, they can acquire even more diverse mechanical properties. For example, the alphabet at the end of a copper alloy designation, such as C1100-H, indicates the properties it possesses due to tempering. *For more details, please feel free to contact us.*

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■Reasons for Plating Copper We are a company with craftsmen who know everything about copper processing, so if you have any questions, please feel free to contact us. *For more details, please feel free to inquire.

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I will introduce the difficulties and interesting aspects of welding copper to copper using copper. 【Welding Methods】 ■ Increase the current value for welding ■ Preheat before welding ■ Remove dirt and impurities from the welding area *For more details, please feel free to contact us.

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We would like to introduce examples of solutions and proposals when "troubles occur at the customer's site" that our company has implemented. *For more details, please refer to the related links or feel free to contact us.*

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We would like to introduce a case of "emergency response using material stock" that we conducted. *For more details, please refer to the related links or feel free to contact us.*

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We would like to introduce examples of solutions and proposals when "troubles occurred at the customer's site."

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This article explains the basics of busbars, their specific applications, and points to consider during processing. - What is a busbar? - Specific applications of busbars - Key points in processing *For more details, please refer to the PDF document or feel free to contact us.*

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■What is a busbar? Basic functions and their importance ■Materials used for busbars and their characteristics ■Manufacturing processes and methods for busbars Busbars play a crucial role in distribution boards, electric vehicles, and battery systems. Depending on their materials and processing methods, they provide high efficiency and reliability. *For more details, please refer to the PDF document or feel free to contact us.*

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Copper busbars have high conductivity and workability, making them active in a wide range of fields such as distribution boards, control panels, and electric vehicles. Proper manufacturing and maintenance are important to improve reliability and efficiency. - Features and advantages of copper busbars - Manufacturing methods of copper busbars - Applications and maintenance of copper busbars * For more details, please refer to the PDF document or feel free to contact us.

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This article will explain in detail the reasons for choosing the optimal drill angle of 118° in the processing of copper busbars and its technical advantages.

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This article explains the basic characteristics and applications of copper busbars. It also covers in detail the manufacturing methods and points to consider when placing an order.

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This article explains the bending processing techniques of copper busbars, including the characteristics and limitations of V-bending and L-bending. It also introduces points for selecting appropriate molds and improving processing accuracy.

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This article provides a detailed explanation of the characteristics and applications of the main materials used for copper busbars: tough pitch copper, oxygen-free copper, and aluminum.

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This article provides a detailed explanation of the characteristics and applications of two representative types of copper busbars: tough pitch copper busbars and oxygen-free copper busbars.

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This article explains the manufacturing process of copper busbars. It focuses on techniques such as drilling and flatwise and edgewise bending, highlighting key points and options.

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This article explains how to select copper busbars and provides examples of their use. It details their role in distribution boards and control panels, as well as the characteristics that enable efficient power supply.

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This article explains the types of heat treatment for copper busbars and their processing techniques. It provides a detailed explanation of the differences in strength due to heat treatment and key points in processing based on domestic JIS standards.

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■Basic Functions and Importance of Copper Busbars ■Manufacturing Process and Materials Used for Copper Busbars ■Maintenance and Durability Improvement Points for Copper Busbars Copper busbars are utilized as distribution components that combine high conductivity and durability across a wide range of applications. By properly executing the manufacturing process and maintenance, efficient and safe power distribution can be achieved. *For more details, please refer to the PDF document or feel free to contact us.*

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■What is a copper busbar? Its role and characteristics ■Material and processing dimensions of copper busbars ■Main applications and advantages of copper busbars Copper busbars are essential components that enable efficient power distribution in distribution boards and control panels. Their high conductivity, processability, and ease of wiring work are widely supported. *For more details, please refer to the PDF document or feel free to contact us.*

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This article explains the role and characteristics of copper busbars. It discusses the efficiency of power supply in distribution boards and control panels, as well as the importance of busbar processing technology.

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This article provides a detailed explanation of the processing techniques for copper busbar plates, including cutting, bending, welding, and machining methods. It introduces tips for efficient processing, incorporating the latest technologies and points to be aware of.

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This article explains the reasons for the difficulty of welding copper busbars and the corresponding welding methods. It provides a detailed introduction to the advantages and examples of TIG welding, spot welding, brazing, and laser welding.

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This document presents a specialized guide on copper processing technology and the manufacturing and design of copper busbars. It comprehensively organizes information from the material properties of copper to processing methods, design standards for busbars, manufacturing processes, surface treatments, related standards, as well as application examples and market trends. Table of Contents 1. Overview 1.1 Importance of Copper and Copper Busbars 1.2 Key Points in Copper Processing and Busbar Manufacturing 2. Material Properties of Copper 2.1 Basic Properties of Copper 2.2 Types and Characteristics of Copper Alloys 2.3 Recyclability of Copper and Reduction of Environmental Impact 3. Copper Processing Technology 3.1 Overview of Processing Methods 3.2 Plastic Processing (Rolling, Drawing, Forging, Bending) 3.3 Cutting Processing (Turning, Milling, Drilling, etc.) 3.4 Casting (Sand Casting, Die Casting) 3.5 Powder Metallurgy 3.6 Latest Processing Technologies (Micro Machining, Laser Processing, 3D Printing, etc.) 3.7 Precautions and Countermeasures during Processing 4. Manufacturing and Design of Copper Busbars 4.1 Required Performance of Busbars 4.2 Design Process and Design Standards 4.3 Insulation Treatment and Plating Treatment Continued with other items.

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## Table of Contents 1. **General Overview: Basic Knowledge of Copper and Copper Alloys** 1.1 History and Characteristics of Copper 1.2 Types and Applications of Copper Alloys 1.3 Physical, Mechanical, Electrical, and Thermal Properties of Copper 1.4 Oxidation and Corrosion Characteristics of Copper 2. **Introduction to Copper Joining Technologies** 2.1 Differences Between Welding, Brazing, and Mechanical Joining 2.2 Unique Joining Challenges of Copper (High Thermal Conductivity, Susceptibility to Oxidation, Cracking, etc.) 2.3 Key Points for Selecting Joining Technologies 3. **Comprehensive Explanation of Copper Welding** 3.1 Overview and History of Copper Welding 3.2 Methods and Types of Copper Welding (TIG, MIG, Resistance Spot, Laser, Electron Beam, etc.) 3.3 Common Defects During Welding and Countermeasures (Blowholes, Cracking, Oxidation, etc.) And so on, continuing up to eight chapters.

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Table of Contents Chapter 1: Purpose and Overview of This Report Chapter 2: Basic Knowledge of Copper and Market Structure Chapter 3: Background of the Surge in Copper Prices Chapter 4: Long-term Price Trends of Copper and Comparisons from the Past Chapter 5: Basics of the Foreign Exchange Market and Its Impact on Copper Prices Chapter 6: International Trends in Copper Resources and Resource Nationalism Chapter 7: Current State of the Copper Industry and Corporate Trends Chapter 8: Demand Analysis by Application of Copper and Future Outlook Chapter 9: Current Status of Copper Recycling and Environmental Impact Chapter 10: Copper and Foreign Exchange Risk Management Chapter 11: Technological Innovations and the Potential for Alternative Materials Chapter 12: Future Outlook for the Copper Market Total word count: over 100,000 words. This is a comprehensive report.

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## Table of Contents Chapter 1: General Discussion: The Importance of Copper and Surface Treatment Chapter 2: Basics of Copper Plating and Surface Treatment Chapter 3: Types and Characteristics of Copper Plating Technologies Chapter 4: Purpose-Based Approaches to Plating and Surface Treatment for Copper and Copper Alloys Chapter 5: Latest Trends in Plating Technologies for Copper Foil and Printed Circuit Boards Chapter 6: Initiatives for Environmentally Friendly Copper Plating Chapter 7: Specific Application Examples of Copper Plating Chapter 8: Plating Troubles and Quality Control Chapter 9: Future Challenges and Directions for Technological Development Chapter 10: Conclusion: The New Value and Sustainability Created by Copper Plating Technology

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Our factory boasts industry-leading expertise and quality in the manufacturing of copper bars (busbars) for transformers, switchgear, and control panels in the power distribution industry. Our products, which are "specialized in copper," are essential for the efficient and safe supply of electricity. 【Our Strengths】 - Custom-made products tailored to customer requirements. - Use of high-quality copper materials, ensuring the reliability of electrical equipment. - Proven track record of supplying major manufacturers. - Offering suitable materials with thicknesses ranging from 3mm to 20mm. 【Message to Our Customers】 The stability and efficiency of power infrastructure support the quality of our lives and the growth of industries. We contribute to the overall development of society through reliable copper bar products. With a commitment to technological innovation and quality, we strongly support our customers in building their power supply systems.

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As a specialist in copper products, we provide various copper products essential to the power distribution and transmission equipment industry. Our products can meet a wide range of needs, from connection plates to busbars, earth bars, main bars, branch bars, and custom bending products. 1) Connection Plates: Used for connections in industrial batteries, power supply devices, and cubicles, customizable according to size, thickness, and connection method. 2) Earth Bars: Essential for power connections to distribution boards and control panels, as well as ensuring safety, capable of precise tapping and hole processing. 3) Main Bars and Branch Bars: Used as bridging bars in distribution boards, flexible in accommodating small lot production that is difficult with ready-made products. 4) Special Bending Products: Even when complex shapes or special bending processes are required, we provide high-quality and cost-effective products through our uniquely developed bender. 5) Plated Products: We have established a consistent production system up to plating in close cooperation with local partner companies. 6) Connection Rods (Bolts, Studs): Production of processed products using copper rods for transformers. 7) Connection Plates (Copper Strips): Production of processed products using copper strips for transformers. For difficult requests or projects that have been declined by other companies, please feel free to contact us.

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Ishigaki Shoten Co., Ltd. is an expert in copper bar (bus bar) processing that supports our customers' challenges. We realize various copper bar processing, from the smallest parts to large power receiving equipment. ■Features■ 【Industry Expertise】 Specialized in product parts for power industry receiving equipment and storage facilities! 【Copper Material Procurement】 Strong relationships with manufacturers and wholesalers, leveraging our background as a wholesaler to procure high-purity copper! 【Custom Orders】 Capable of handling special shapes through general-purpose machining by skilled artisans! 【High Quality & Precision】 Providing high-quality products born from advanced technology through the manufacturing of industrial battery and power supply components! ■Track Record■ 【Strong Trust from Listed Companies】 Boasting numerous transaction records, our latest copper processing technology is highly regarded. ■Strengths■ 【Experience in Large Product Deliveries】 Rich experience in manufacturing large items requiring precision processing, such as large power receiving equipment. 【Cost and Speed】 Adjusting the balance of delivery time, cost, and precision according to customer needs, achieving cost optimization while preventing excessive quality. 【Integrated Production】 Comprehensive response from procurement to processing, plating, and quality control through integrated production. *For more details, please refer to the downloadable materials.

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