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  6. List of products for power receiving equipment: Value that can be provided because it is a specialized processing factory for "copper"!

List of products for power receiving equipment: Value that can be provided because it is a specialized processing factory for "copper"!

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last updated:Feb 18, 2026

石垣商店
石垣商店
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You can stand out from your competitors with custom copper products specifically designed for the power industry!

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.

    Transformers
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List of products for power receiving equipment: Value that can be provided because it is a specialized processing factory for "copper"!

【WEB】表紙.png
【WEB】表紙.png
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basic information

Choosing the optimal material and size when selecting copper bars greatly affects the product's performance, cost, and delivery time. Below is a guide on how to choose the material and basic dimensions of copper bars. Material: C1100: Has high electrical conductivity and is generally suitable for electrical applications. C1020: Combines excellent thermal conductivity and workability, making it suitable for specific applications. Size (Cross-sectional area: Height × Width): Width: 12mm, 15mm, 20mm, 25mm, 30mm, 40mm, 50mm, 75mm, 100mm, 150mm, 200mm Height: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 15mm, 20mm The cross-sectional area of the copper bar conforms to these basic dimensions, allowing for various combinations. When making a selection, consider the following points: Material cost: Choosing standard sizes can reduce costs. Delivery time: Selecting standard products can lead to quick arrangements and shorter delivery times.

Price information

It is calculated based on the daily copper market price.

Price range

P2

Delivery Time

P3

※*Please feel free to contact us as it may vary depending on quantity and equipment operating status. We excel at urgent requests!!*

Applications/Examples of results

Components of high-voltage receiving equipment - Large, medium, and small transformers - Cubicles - Control panels / receiving panels - Disconnectors (DS) / switches / circuit breakers - Lightning arresters - Breakers

Detailed information

  • P1010031.jpg

    Abundant material inventory (established as a wholesaler, with strong relationships with material manufacturers)

  • 会社外観(峻さんの奥さんが修正してくれた外観).jpg

    In-house factory (producing in a clean, safe workplace with 5S)

  • P1010109.jpg

    Special bending processing is our specialty (twisting, edgewise).

  • P1010080.jpg

    Products of copper TIG welding (the craftsmanship is also being passed down to the younger generation)

catalog(3)

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70 years of trust and achievements as a specialized copper processing company!

70 years of trust and achievements as a specialized copper processing company!

COMPANY
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Four secrets to being chosen as a specialist in copper processing!

Four secrets to being chosen as a specialist in copper processing!

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Efforts for the Environment: 'SBT Certified Company'

Efforts for the Environment: 'SBT Certified Company'

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News about this product(1)

The participation in the JECAFAIR 2026 Electrical Industry Exhibition has been confirmed.

  • Company news

We have decided to exhibit at "JECAFAIR 2026 Electric Construction Industry Exhibition," which will be held at Tokyo Big Sight from May 27 (Wednesday) to May 29 (Friday). We will be exhibiting right at the entrance of booth number 1-54 in Hall 1 East. On the final day, our on-site workers, who process 150 tons of copper busbars annually, will share insights about the characteristics of copper, the challenges of processing, and information that only those on-site would know during the exhibitor seminar! For more details, please visit the official website! We sincerely look forward to your visit!

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石垣商店

石垣商店

Industrial Electrical Equipment

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We have been providing copper components to transformer and control panel manufacturers, delivering energy through copper and ensuring safety and security for society. As a result of walking alongside our customers throughout this process, we have become a "copper specialty processing company"! When our customers are truly in need, we respond as quickly as the same day, embodying the spirit of mutual support! ■ Overwhelming inventory ■ Craftsmanship that allows for the fastest processing and youthful, energetic power ■ Strong network with local plating partner companies We can perform various processing methods such as machining, pressing, welding, and brazing. Since we have established a production system for a wide variety of small quantities, ■ Small lots ■ Various sizes ■ Complex shapes can also be handled quickly. We aim to be a company that delivers energy to everyone through copper, and we look forward to your continued support.

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