石垣商店 Product Lineup

Our company specializes in copper component processing. Please feel free to consult us when you need our services. [Contents] ■ Basic role of insulators ■ Types and characteristics of insulators ■ Manufacturing process of insulators *For more details, please refer to the PDF document or feel free to contact us.

This document provides an overview of Chile, a major copper-producing country that accounted for 28% of global copper ore production in 2019. Please take a moment to read it. [Contents] ■ The global importance of Chile's copper industry ■ The existence and characteristics of porphyry copper deposits ■ Chile's role in copper exports *For more details, please refer to the PDF document or feel free to contact us.

This document explains the differences between chrome copper and beryllium copper. If you have any issues related to copper processing, please feel free to contact us. We also provide information on other copper products such as tough pitch copper and oxygen-free copper. [Contents] ■ Excellent properties of chrome copper: high heat resistance and strength ■ Beryllium copper: a copper alloy with multifunctionality ■ Our company has over 60 years of experience in copper processing *For more details, please refer to the PDF document or feel free to contact us.

This document explains the differences between tough pitch copper (C1100) and chromium copper. It details the features of tough pitch copper (C1100), which combines high conductivity and workability, as well as the strengths of chromium copper, which boasts high heat resistance and high hardness. For inquiries or estimates regarding copper processing, please feel free to contact us. [Contents] ■ Features of Tough Pitch Copper (C1100): High conductivity and workability ■ Strengths of Chromium Copper: High heat resistance and high hardness ■ 60 years of experience: Professionals in copper processing *For more details, please refer to the PDF document or feel free to contact us.

This document explains the differences between nickel plating and chrome plating. It also provides guidance on appropriate selection methods, so please take a moment to read it. 【Contents】 ■ Diverse characteristics and applications of nickel plating ■ Chrome plating: Balancing durability and aesthetics ■ Appropriate selection methods for nickel plating and chrome plating *For more details, please refer to the PDF document or feel free to contact us.

Our company specializes in copper component processing. Please feel free to consult us when you need our services. 【Contents】 ■ Basics of copper busbars ■ Features and benefits of copper busbars ■ Applications and uses of copper busbars *For more details, please refer to the PDF document or feel free to contact us.

This document explains the surface treatment technology of copper and brass using acid washing, known as "Kirin treatment." It provides detailed information on the benefits, applications, and uses of Kirin treatment. Our company specializes in the processing of copper parts. Please feel free to consult us when needed. [Contents] ■ What is Kirin treatment ■ Benefits of Kirin treatment ■ Applications and uses of Kirin treatment *For more details, please refer to the PDF document or feel free to contact us.

This document explains the effects of nickel plating on copper. It details the characteristics of "copper with nickel plating," which effectively suppresses corrosion and enhances the durability of products. For inquiries or estimates regarding the processing of copper products, please feel free to contact us. [Contents] ■ Enhancing the durability and beauty of copper products with nickel plating ■ Nickel-plated copper products with heat resistance and corrosion resistance ■ Our high-quality nickel plating copper processing technology *For more details, please refer to the PDF document or feel free to contact us.

This document explains the causes of discoloration in tin plating. Our company specializes in copper component processing. Please feel free to consult us when you need our services. 【Contents】 ■ Main causes and their countermeasures ■ Management of neutralizers and maintenance of tin plating quality ■ General tips for preventing discoloration of tin plating *For more details, please refer to the PDF document or feel free to contact us.

This document explains the high-capacity conductors known as "busbars," which are used in distribution boards, control panels, and batteries. It provides detailed information on the points of manufacturing and processing, as well as the differences from earth bars. Our company specializes in copper component processing. Please feel free to consult us when needed. 【Contents】 ■ What is a busbar? ■ Points of manufacturing and processing busbars ■ Differences from earth bars *For more details, please refer to the PDF document or feel free to contact us.

This document explains the reasons for plating copper. Our company specializes in copper component processing. Please feel free to consult us when you need assistance. [Contents] ■ Characteristics of copper and the importance of plating ■ History of tin plating and its modern applications ■ Types of plating and their effects *For more details, please refer to the PDF document or feel free to contact us.

This document explains the corrosion of tin plating. Our company specializes in the processing of copper components. Please feel free to consult us when you need assistance. [Contents] ■ Corrosion prevention characteristics of tin plating ■ Corrosion risks associated with tin plating and their countermeasures ■ Diverse applications of tin plating *For more details, please refer to the PDF document or feel free to contact us.

This document explains the differences between Tough Pitch Copper (C1100) and Oxygen-Free Copper (C1020). It provides detailed information on the overview of Tough Pitch Copper (C1100), the characteristics of Oxygen-Free Copper (C1020), and a comparison between Tough Pitch Copper and Oxygen-Free Copper. Our company specializes in the processing of copper components. Please feel free to consult us when you need assistance. [Contents] ■ Overview of Tough Pitch Copper (C1100) ■ Characteristics of Oxygen-Free Copper (C1020) ■ Comparison of Tough Pitch Copper and Oxygen-Free Copper *For more details, please refer to the PDF document or feel free to contact us.

This document explains the relationship between copper prices and the dollar-yen exchange rate. 【Features】 ■ Current state of the copper market and the background of price increases ■ Relationship between the dollar index and copper prices ■ Trends in copper prices and the impact of the dollar-yen exchange rate *For more details, please refer to the PDF document or feel free to contact us.

This document explains the differences between chromium copper (C3234) and oxygen-free copper (C1020). It details the characteristics of chromium copper, which has a higher strength compared to oxygen-free copper, despite being a high-purity copper with an extremely low oxygen content. Additionally, it includes information on the applications and selection of both materials, so please take a moment to read it. [Contents] ■ Characteristics of oxygen-free copper (C1020) ■ Characteristics of chromium copper (C3234) ■ Applications and selection of both *For more details, please refer to the PDF document or feel free to contact us.

This document explains the characteristics of oxygen-free copper (C1020), which has a purity of 99.96% or higher, and the importance of annealing in its processing. Additionally, while oxygen-free copper (C1020) is a material that is easy to process, it also has its own unique challenges. We will introduce important points for processing oxygen-free copper (C1020) as well as the types of annealing treatments and their purposes. Our company specializes in the machining of copper components. Please feel free to consult us when needed. 【Topics Covered】 ■ The characteristics of oxygen-free copper (C1020) and the importance of annealing in processing ■ Important points for processing oxygen-free copper (C1020) ■ Types of annealing treatments and their purposes *For more details, please refer to the PDF document or feel free to contact us.

This document explains the meaning of the "P" in Tough Pitch Copper C1100P, as well as its characteristics and applications. Our company specializes in the processing of copper parts. Please feel free to consult us when you need assistance. 【Contents】 ■ Meaning of Tough Pitch Copper C1100P ■ Characteristics of Tough Pitch Copper C1100P ■ Applications of Tough Pitch Copper C1100P *For more details, please refer to the PDF document or feel free to contact us.

Our company specializes in copper parts processing. Please feel free to consult us when you need our services. 【Items Listed】 ■1. Background of Copper Price Increase ■2. Weak Dollar and Copper Prices ■3. Outlook for Future Copper Market *For more details, please refer to the PDF document or feel free to contact us.

【Publication Items】 ■Proper selection methods for copper busbars and standards for current density ■Characteristics and diverse applications of copper flat bars (copper busbars) ■How to determine the current capacity and cross-sectional area of copper bars *For more details, please refer to the PDF materials or feel free to contact us.

This document introduces copper ingots, which are the raw materials for the production of copper busbars, copper round bars, and copper plates, certified by the London Metal Exchange (LME). It also explains the manufacturing process of copper busbars and the importance of copper ingots and copper busbars. Our company specializes in the processing of copper components. Please feel free to consult us when you need assistance. 【Contents】 ■1. Overview and manufacturing process of copper ingots ■2. Manufacturing process of copper busbars ■3. Importance of copper ingots and copper busbars *For more details, please refer to the PDF document or feel free to contact us.

The processing of copper round bars requires precise machining technology, particularly focusing on the use of 5-axis machining centers and NC lathes. In screw machining, there are two types: rolling and cutting, each with its own advantages, but some methods may take longer. Additionally, strict quality control is implemented, and only products that pass inspections using ring gauges are shipped. This ensures the high quality of copper products. 'Precision Processing of Copper Round Bars: Selection of Technology and Its Importance' 'Technology of Copper Bar Screw Machining: Differences Between Rolling and Cutting' 'Quality Control in Copper Bar Screw Machining: Importance of Inspection' *For more details, please refer to the PDF document or feel free to contact us.

"Why don't birds get electrocuted on power lines? The secret of transmission lines" "The nature of electricity: Why are birds safe on power lines?" "Innovations in power line installation and consideration for humans" *For more details, please refer to the PDF document or feel free to contact us.*

"Challenges of Pure Copper (C1100) Processing and Ishigaki Shoten's Unique Technology" "Issues in Chrome Copper Processing and Ishigaki Shoten's Solutions" "Ishigaki Shoten's Copper Processing Technology Boasting 70 Years of Experience" *For more details, please refer to the PDF document or feel free to contact us.*

"Challenges in Copper Welding: Precisely Because of Its High Thermal Conductivity" "Techniques for Welding Copper: Choosing the Right Method" "Key Points for Successful Copper Welding" *For more details, please refer to the PDF document or feel free to contact us.*

Ishigaki Shoten is highly regarded by customers for its cost reduction in the processing of high-quality copper plates and rods, diverse bending processing techniques, and the provision of various plating services. The high cost performance through direct procurement routes, precise processing techniques including crank bending, and quality management in collaboration with reliable partner companies are major reasons why Ishigaki Shoten is chosen in the industry. Leveraging these strengths, Ishigaki Shoten continues to meet various customer demands. "Reasons to Choose Ishigaki Shoten: Direct Procurement of Copper Plates" "Ishigaki Shoten's Specialty: Complex Bending Processing of Copper Busbars" "Consistent Production from Ishigaki Shoten: From Tin Plating to Nickel Plating" *For more details, please refer to the PDF materials or feel free to contact us.

- "Copper processing technology and its application in the industry" - "Surface accuracy and scratch management" - "Over 60 years of achievements and trust" *For more details, please refer to the PDF document or feel free to contact us.

■Fusion connection: Advanced welding technology for copper ■Characteristics and strengths of TIG welding ■Challenges and solutions in copper welding *For more details, please refer to the PDF document or feel free to contact us.*

To accurately calculate the price of copper busbars, it is necessary to multiply the weight by the market price. Additionally, to enhance cost efficiency, weight adjustments and collaboration with reliable material suppliers like Ishigaki Shoten are key. Choosing the right partners directly impacts the reduction of manufacturing costs and the improvement of product quality. Methods for calculating the price of copper busbars Purchasing and cost efficiency of copper busbars Choosing partners for copper busbar processing *For more details, please refer to the PDF document or feel free to contact us.

■The Rise of Copper Prices and the Role of the Dollar Index ■The Relationship Between Dollar-Yen and Copper Prices ■Future Outlook for Copper Prices and Advice for Investors *For more details, please refer to the PDF document or feel free to contact us.*

The copper processing at Ishigaki Shoten is based on a deep understanding and technology of the unique properties of C1100 tough pitch copper. During processing, the material's flexibility, high density, and ductility present significant challenges. In particular, during press processing, the material's stickiness and the adhesion of the mold due to heat are critical issues, while in machining, managing the high thermal conductivity and burr generation is essential. Ishigaki Shoten overcomes these challenges to provide high-quality copper products. The difficulties of copper processing and the characteristics of C1100 Challenges in press processing and machining Techniques for cutting and lathe processing *For more details, please refer to the PDF materials or feel free to contact us.

■Price trends of copper busbars and the value of Ishigaki Shoten ■Cost reduction in copper processing at Ishigaki Shoten ■Reasons to choose Ishigaki Shoten for copper processing outsourcing *For more details, please refer to the PDF materials or feel free to contact us.*

The basics of countersunk screws and the challenges in their processing ensure a clean and professional finish with appropriate pilot holes and countersinking. Ishigaki Shoten meets customers' copper processing needs with specialized technology in countersinking screws.

■Basic information and precautions for point taps ■Guidelines for exchanging point taps ■How to choose and differentiate point taps *For more details, please refer to the PDF document or feel free to contact us.

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.

## 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.

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!

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!

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.

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!

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.