石垣商店 List of Products and Services

This document explains the characteristics of high-purity copper (C1020) with 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 specific 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 processing of copper components. Please feel free to consult us when needed. [Topics Covered] ■ Importance of annealing in the processing of oxygen-free copper (C1020) ■ 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.

• Substation 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," as well as 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.

• Substation equipment

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 wide variety of products in small quantities with short lead 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.

• Substation equipment

Our factory boasts industry-leading expertise and quality in the manufacturing of copper bars (busbars) for transformers, distribution boards, 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】 (1) Custom Design: Custom-made products tailored to customer requirements. (2) Reliability and Safety: Use of high-quality copper materials ensures the reliability of electrical equipment. We supply major manufacturers and receive high evaluations in the industry due to strict quality control. (3) Technological Innovation: Manufacturing processes utilizing the latest technology. We propose suitable components from copper plates and round bars with thicknesses ranging from 1mm to 20mm. (4) Comprehensive Support: Full support for customers from prototyping to mass production. We also provide extensive proposals and support for solving technical issues. 【Product Materials】 - C1100 - C1020 【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.

• Power distribution and control panels

The products processed from copper round bars at Ishigaki Shoten are essential products that receive the transmitted electric current. How can we achieve successful processing? The answer is that without a solid understanding of the basics, processing cannot be done. 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 applies a cutting tool according to its function to perform cutting. What types of processing are possible? 1: Outer diameter cutting Cutting the outer surface 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 Drilling 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 threading insert 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 power generation

"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.*

• Power distribution and control panels

The delivery destinations for Ishigaki Shoten are transformer manufacturers and panel manufacturers. Among them, we are most skilled in processing copper busbars ranging from 10mm to 20mm for controlling 550,000V, such as in primary substations. We can handle material procurement, cutting, press hole punching, 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.

• Power and Energy Equipment

Processing of copper round bars requires precise machining technology, particularly focusing on the use of 5-axis machining centers and CNC 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 inspection 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.

• Power distribution and control panels

Transformers and various panels differ in size depending on the installation location and the power being 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 steps. By simply securing it with screws, it is possible to deliver stable electricity! Considering the rising costs of copper, we only charge for the necessary material costs plus processing fees, so please give it some thought!

• Solar power generation

"Why don't birds get electrocuted on power lines? The secret of power 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 materials or feel free to contact us.*

• Power distribution and control panels

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 control 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 document or feel free to contact us.

• Power distribution and control panels

"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 Achievement" *For more details, please refer to the PDF materials or feel free to contact us.*

• Power distribution and control panels

- "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 materials or feel free to contact us.

• Power distribution and control panels

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.

• Power distribution and control panels

■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 materials or feel free to contact us.*

• Power distribution and control panels

■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.*

• Power distribution and control panels

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 pressing, the material's stickiness and the adhesion of the mold due to heat, as well as the management of high thermal conductivity and burr generation in machining, are crucial. Ishigaki Shoten overcomes these challenges to provide high-quality copper products. The difficulties of copper processing and the characteristics of C1100 Challenges in pressing and machining Techniques in cutting and lathe processing *For more details, please refer to the PDF materials or feel free to contact us.

• Power distribution and control panels

■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 document or feel free to contact us.*

• Power distribution and control panels

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 countersunk screw machining.

• Power distribution and control panels

■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.

• Power distribution and control panels