石垣商店 List of Products and Services

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.

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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.

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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.

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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.

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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.

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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.

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"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.*

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- "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.

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■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.*

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■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.*

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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.

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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.

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■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.

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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.

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【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.

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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.

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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.

• Technical and Reference Books

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.

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Transformers and various panels differ in size depending on the installation location and the amount of power handled. However, the strength of electricity must not weaken. To maximize performance within limited constraints, we can bend and redirect the materials, and by processing as much as possible with a single copper busbar, we can minimize the installation process. It is possible to deliver stable electricity simply by securing it with screws! Given the rising prices of copper, we only charge for the necessary material costs plus processing fees, so please consider this!

• Non-ferrous metals

The delivery destinations for Ishigaki Shoten are transformer manufacturers and panel manufacturers. Among these, we excel at processing copper busbars ranging from 10mm to 20mm for controlling 550,000V at primary substations. We can handle material procurement, cutting, press hole drilling, press bending, machining for 12mm to 20mm, lathe processing of copper round bars, and plating (silver, tin, nickel), allowing for installation on the same day they arrive. Please note that there are processing limits for bending operations on 15mm and 20mm.

• Other energy equipment

The products processed from copper round bars at Ishigaki Store are important products that receive the transmitted electric current. How can we achieve successful processing? The answer is that processing cannot be done without a solid understanding of the basics. What is lathe processing? It is a type of machine tool that holds a round bar in a place called a chuck, rotates it, and cuts it using a tool appropriate for its function. What types of processing are possible? 1: Outer diameter cutting Cutting the outer side of the round bar. 2: Inner diameter cutting Cutting the inside of the round bar. 3: End face processing Improving the flatness of the cut surfaces on both ends of the round bar by cutting 0.5 mm to 2 mm for dimensional accuracy. 4: Drilling Creating holes of specified size and depth on the end face of the round bar according to the drawing requirements. Multi-axis machine tools, such as composite machines, can drill holes on the side of the round bar. 5: Boring Using a boring tool on the drilled hole to widen it to fine tolerances or improve the flatness of the inner surface. 6: Thread cutting Cutting the outer and inner diameters of the round bar with a tool called a thread cutting bit to form threads. 7: Parting Cutting by pressing the tool against the center of the round bar. Understanding the basics and processing is the first step for a craftsman.

• Other energy equipment

We would like to introduce the "Machining Center" owned by Ishigaki Shoten. Starting with the versatile and user-friendly "OKK VM5 III," we also have the upgraded compact machining machine "Robodrill α-D21L" and the long-time favorite compact machining machine "Robodrill α-T14iA." Our company performs press processing, lathe processing, and machining, providing a wide variety of products with short delivery times and high quality. We also accommodate special processes such as welding, soldering, and surface finishing. Please feel free to contact us when you need our services. 【Equipment Owned】 ■ OKK VM5 III ■ Robodrill α-D21L ■ Robodrill α-T14iA *For more details, please refer to the PDF document or feel free to contact us.

• Machining Center

Ishigaki Shoten Co., Ltd. mainly engages in the prototyping and mass production of transformer-related components, control panel transformer-related parts, and high-speed railway-related components. We perform press processing, lathe processing, and machining to provide a variety of products in small quantities with short delivery times and high quality. We also accommodate special processes such as welding, soldering, and surface finishing. 【Business Activities】 ■ Prototyping and mass production of transformer-related components ■ Prototyping and mass production of control panel transformer-related parts ■ Prototyping and mass production of high-speed railway-related components ■ Prototyping and mass production related to the environment and new energy industries ■ Production of copper processed products for general use *For more details, please download the PDF or feel free to contact us.

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