石垣商店 Product Lineup

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.

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.

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.

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.

"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.*

■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.

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.

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.

■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.

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 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.

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.

■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.*

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.*

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.

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.*

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.*