Solid Copper Bus Bar
Products Description
Solid copper bus bars are based on high-purity copper and precision-machined to form a stable cross-sectional structure, featuring a continuous conductive path, low resistance loss, and excellent structural strength. Compared to stranded wire or flexible connection solutions, copper busbars exhibit higher reliability and consistency during long-term operation, making them particularly suitable for system designs with limited space, high current density, or complex operating environments.
Depending on application requirements, the product is available in:
Bare Copper Bus Bar
Nickel Plated Copper Bus Bar
Tin/Zinc Plated Copper Bus Bar
Different surface finishes offer differentiated choices in conductivity, oxidation resistance, and environmental adaptability, providing greater freedom in engineering design.
Refined Production Process: Every Step Meets Stringent Power-Grade Standards
1. Customized Solution Confirmation: In-depth collaboration with clients to clarify product current ratings, dimensions, surface treatment types, installation methods, and application scenarios, completing structural design and process planning.
2. High-Purity Solid Copper Substrate Selection: High-purity electrolytic copper ingots conforming to standards are selected. Copper purity and impurity content are tested using a spectrometer to ensure conductivity ≥99.9%, while also testing substrate density and mechanical properties.
3. Solid Copper Forming: Copper ingots are extruded into solid copper rods/plates using continuous extrusion equipment, followed by precision straightening and cutting to obtain basic blanks, ensuring uniform dimensions and a smooth surface.
4. Precision Machining: Based on the design scheme, the Copper Battery Bus Bar is precisely machined using CNC cutting, bending, drilling, and other processes. Simultaneously, details such as hole chamfering and edge trimming are completed to ensure dimensional accuracy and installation compatibility.
5. Surface Treatment: Surface treatments are performed according to requirements: bare copper products undergo degreasing, cleaning, and passivation; nickel-plated products undergo pretreatment followed by cyanide-free electroplating; zinc-plated products undergo pretreatment followed by hot-dip galvanizing or electroplating.
6. Post-Surface Quality Treatment: Surface-treated products are ground and polished to remove surface imperfections; bare BusBar High Voltages undergo additional anti-oxidation protection treatment to improve their oxidation resistance during short-term storage and initial use.
Product Properties and Characteristics: The Power of Natural Metal
1 High Conductivity Solid Structure
The product is made from high-purity electrolytic copper through continuous extrusion or drawing, resulting in extremely high density and no internal voids or bubbles. This solid structure ensures the shortest current path and lowest impedance during transmission, effectively reducing heat loss under high current operation.
2 Three Surface Protection States
Bare Copper: Displays the original purplish-red luster of the metal. It has the lowest contact resistance but is prone to oxidation in air. Suitable for short-term projects or as a substrate for further processing (such as dip coating, cladding).
Nickel-plated Copper: Surface exhibits a silvery-white metallic luster. The nickel layer is dense, hard, and has extremely high chemical stability.
Zinc-plated Copper: Surface is bluish-gray or bright white. The zinc layer serves as a sacrificial anodic protection layer, specifically designed to withstand industrial atmospheric environments.
3 Excellent Machinability
The Bus Bar Connectors combines the ductility of metallic copper with the high hardness of the finished product. It is easy to perform machining such as punching, bending, and cutting in the workshop to meet various non-standard designs, and it has excellent tensile strength and creep resistance after installation, and is not easily deformed due to its own weight or external force.
Main Functions: The Core of Power Transmission and Distribution
The primary function of electrolytic copper busbars in a power system is to provide a high-efficiency power transmission and distribution path:
As the main conductive path in the power system, it carries high current.
In the distribution system, it connects different devices and components, ensuring the continuity of power transmission.
It serves as a key connecting component within switchgear, transformers, and distribution boxes.
In UPS (Uninterruptible Power Supply) systems, it provides a stable power transmission path.
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