Copper Busbar
Your Professional Copper Busbar Supplier
Sichuan Precision Technology Co., Ltd. (PRS) is a professional engineering company with 20+ years of experience delivering copper plant solutions worldwide.You need more than just equipment. You need a solution that works from day one - and keeps working.Our vision is to make modern copper electrowinning (EW) accessible, scalable, and efficient for all mining operations worldwide.
why choose us
One-Stop Solution
We provide an end-to-end service that covers the entire project cycle—from engineering design, equipment manufacturing, quality inspection, and logistics coordination to on-site installation and commissioning—ensuring seamless control and consistent quality at every stage.
Rich Project Experience
Our team has successfully delivered a wide range of copper EW (Electrowinning) projects with capacities from 3,000 to 50,000 TPA. These projects span multiple countries and operating environments, giving us deep industry expertise and proven technical solutions.
Customized Design
Each project is tailored to local environmental conditions, ore characteristics, production targets, and customer-specific requirements. We provide optimized engineering layouts, equipment configurations, and process flow designs to maximize efficiency and long-term operability.
After-sales Support
We offer comprehensive after-sales service, including 24/7 technical support, remote troubleshooting, timely spare parts supply, and on-site service when required, ensuring reliable operation and minimal maintenance interruptions.
Their high electrical conductivity ensures efficient and reliable electrical power transmission, minimizing losses and voltage drops.
Copper’s excellent thermal conductivity aids in dissipating heat generated during current transmission, preventing overheating and preserving the performance and lifespan of electrical components.
Copper’s ductility and malleability allow for easy shaping into various forms and configurations, facilitating the creation of custom bus bar designs to meet specific system requirements.
Copper’s exceptional corrosion resistance ensures the longevity and reliability of bus bars, even in harsh environments.
Technical Specifications
|
Parameter |
Value / Range |
|
Material |
High-purity copper (≥99.95%) |
|
Shape |
Flat bar / Rectangular / Square |
|
Cross-section |
30×10 mm, 50×10 mm, 80×10 mm, 100×12 mm, etc. |
|
Length |
Up to 6 meters (customizable) |
|
Surface Finish |
Bare / Tin-plated / Nickel-plated |
|
Electrical Conductivity |
≥ 100% IACS |
|
Current Density (ref.) |
1.6–3.0 A/mm² (based on IEC 60439-1:2020) |
|
Tolerance |
As per ISO 2768 or customer request |
Material Grades of Copper Busbar
Electrolytic Tough Pitch (ETP) Copper:
Composition: Comprises a minimum of 99.90% copper.
Features: ETP offers excellent electrical conductivity, making it a popular choice. Its reasonable corrosion resistance ensures durability in various environments.
Applications: Predominantly used in power distribution mechanisms, electrical switchgear, and high-demand electrical installations due to its balanced properties.
Oxygen-Free High-Conductive (OFHC) Copper:
Composition: This grade boasts an impressive 99.95% copper purity and minimal oxygen content.
Features: Superior electrical conductivity combined with excellent resistance to oxidation. It’s also highly formable, making it ideal for intricate components.
Applications: Catering to specialized needs, preferred in high-vacuum environments, advanced research applications, and cryogenic setups.
Copper Busbar Fabrication Techniques
Cutting and Shaping
Copper sheets or bars are cut and shaped to the desired dimensions using various tools and techniques. This can involve using shears, saws, or CNC machines to achieve precise cuts and shapes. The accuracy of the cutting process is crucial to ensure the proper fit and functionality of the bus bars.
Punching and Drilling
Holes are punched or drilled into the copper material to accommodate connections and mounting points. This allows for the secure attachment of electrical components and facilitates the assembly of the bus bar system. The size and placement of the holes are carefully determined based on the application’s specific requirements.
Bending and Forming
Copper bus bars may need to be bent or formed to achieve specific shapes or configurations. This is typically done using press brakes or bending machines, allowing for precise bending angles and radii. Proper bending techniques are employed to maintain the bus bars’ structural integrity and electrical conductivity.
Joining Methods
Various joining methods connect different sections of copper bus bars or attach them to other components. Brazing, on the other hand, utilizes a lower-temperature process with a different filler material. Mechanical connectors, such as bolts, screws, or clamps, are also used for joining bus bars, providing a removable and adjustable connection.
Applications of Copper Busbar
Residential & Commercial
Efficiently manage and distribute electricity through distribution boards and panels, ensuring smooth operations.
Industrial
Integral in switchgears, transformers, and heavy industrial machinery functionality.
Transport
Electric vehicles rely on them for efficient power distribution.
Green Energy
A cornerstone in renewable energy systems like solar panels and wind turbines, enabling efficient energy transfer.
FAQ