High Current Flexible Copper Busbar Factory in China | Low Resistance Copper Busbar Suppliers
Technical Specifications
| Item | Specification |
|---|---|
| Material | 99.99% High Purity Oxygen-free Copper (T2) |
| Single Foil Thickness | 0.1mm / 0.15mm / 0.2mm (custom 0.05–0.5mm) |
| Number of Layers | 10–200+ layers |
| Cross-Section Area | 1.5–5000 mm² |
| Surface Treatment | Bare Copper / Tin Plated / Silver Plated / Nickel Plated |
| Rated Current | 300A–10,000A (customized) |
| Insulation Material | PVC / Silicone Rubber / EVA Heat Shrink (UL94-V0) |
| Working Temperature | -40°C ~ +180°C |
| Certification | RoHS, REACH, (optional) |
Application
- Electric Vehicle (EV) Battery Packs & Modules
- Energy Storage Systems (ESS) & Battery Cabinets
- UPS & Industrial Power Cabinets
- High/Low Voltage Switchgear & Distribution Panels
- Solar/Wind Power Inverters & Converters
- Railway & Transit Power Systems
- Data Center Power Distribution
Production Process
Raw High-Purity Copper Foil
→
Precision Cutting
→
Laminating & Pressing
→
Terminal Diffusion Welding
→
Surface Plating (Tin/Silver/Nickel)
→
Insulation Sleeving
→
Strict Quality Inspection
→
Finished Products
Packaging
- Inner: Anti-static PE plastic bag (dustproof, moisture-proof)
- Outer: Standard export carton; wooden box for heavy/large products
- All products are well-packed to avoid extrusion, rust, and damage during long-distance sea/air freight.
Shipping
- Sample order: 3–7 days
- Bulk order: 7–15 days
- Shipping methods: Express (DHL/FedEx), Air freight, Sea freight (FOB/CIF/CFR)
Frequently Asked Questions
Q1
What copper purity is used in your flexible copper busbars?
Our flexible copper busbars are manufactured using 99.99% high-purity oxygen-free copper (T2 grade), which ensures minimal electrical resistance, excellent conductivity, and superior corrosion resistance for long-term reliable performance.
Q2
Can the laminated copper foil connectors be customized to specific dimensions and current ratings?
Yes, all products are fully customizable. We support custom foil thickness (0.05–0.5mm), number of layers (10–200+), cross-section area (1.5–5000 mm²), and current ratings from 300A up to 10,000A. Please share your technical drawings or requirements for a tailored solution.
Q3
What surface treatment options are available?
We offer four surface treatment options: Bare Copper, Tin Plated, Silver Plated, and Nickel Plated. Tin plating is the most common choice for oxidation resistance; silver plating is preferred for high-frequency or high-temperature applications; nickel plating provides extra durability in harsh environments.
Q4
What insulation materials are available, and are they flame-retardant?
We provide PVC, Silicone Rubber, and EVA Heat Shrink insulation options. All insulation materials comply with the UL94-V0 flame-retardant standard, making them suitable for demanding industrial and EV battery applications. The operating temperature range is -40°C to +180°C.
Q5
What certifications do your flexible copper busbars carry?
Our products comply with RoHS and REACH environmental standards. Additional certifications can be arranged upon request to meet specific regional or project requirements. Please contact us for details on certification documentation.
Q6
What is the lead time and available shipping method for bulk orders?
Sample orders are typically ready within 3–7 business days, while bulk orders take 7–15 business days depending on quantity and specifications. We support multiple shipping methods including Express courier (DHL/FedEx), Air freight, and Sea freight under FOB, CIF, or CFR terms to suit your logistics needs.