OEM Custom Flexible Laminated Copper Busbars for Battery & Electrical Equipment - China Factory & Suppliers Suppliers, Product

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Product Description

Product Overview

Shenzhen Sunmy Hardware Co.,Ltd. specializes in the manufacturing of high-performance Flexible Laminated Copper Busbars. Engineered to accommodate dynamic loads, thermal expansion, and mechanical vibration, these laminated conductors ensure reliable and safe power transmission in highly demanding environments. Designed specifically for modern energy solutions, they are the ideal connection components for electric vehicle (EV) battery packs, power inverters, switchgears, and heavy-duty industrial electrical equipment. We provide fully customized solutions tailored to your specific spatial and power distribution requirements.


Process & Manufacturing Insights

Our production relies on advanced CNC Machining integrated with precision lamination and consolidation technologies. The busbars are constructed by stacking multiple layers of highly conductive, ultra-thin copper foils. The terminal areas are firmly consolidated (often through diffusion welding or riveting) and then subjected to high-precision CNC machining.

This sophisticated machining process allows us to achieve exceptionally tight tolerances, perfectly flat contact surfaces, and highly accurate mounting holes, ensuring optimal electrical connectivity and minimal contact resistance. Our state-of-the-art manufacturing capabilities enable us to seamlessly produce complex 2D and 3D geometries—including intricate U-shapes, S-bends, and multi-angled configurations—to bypass structural obstacles within your equipment.

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CNC Machining & Precision Lamination
Multiple layers of ultra-thin copper foils are stacked, consolidated via diffusion welding or riveting, then precision-machined to achieve tight tolerances and flat contact surfaces.
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Complex 2D & 3D Geometry Capability
We produce intricate U-shapes, S-bends, and multi-angled configurations, enabling your conductors to navigate structural obstacles within any equipment layout.
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Accurate Mounting Holes & Surfaces
High-precision CNC drilling and milling ensure perfectly accurate mounting holes and minimal contact resistance for optimal electrical connectivity.
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Scalable Manufacturing
Our state-of-the-art facility supports seamless transition from prototype to high-volume mass production with consistent quality at every stage.

Key Specifications
Specification Details
Product Name Flexible Laminated Copper Busbar / Battery Conductor
Manufacturing Process CNC Machining, Lamination, Bending, Press-Welding
Material Options Copper, Brass, Beryllium Copper (BeCu), Phosphor Bronze, Nickel Plate
Dimensions / Size Fully customized according to customer drawings
Surface Treatment Tin Plating, Nickel Plating, Bare Copper
Primary Applications Electrical Equipment, Industrial Automation, Automotive (EV/HEV Battery Packs), Power Distribution
Drawing Formats Accepted 2D / 3D / CAD / DWG / STEP / PDF / IGS
Quality Certification ISO 9001:2015 Certified
Sample Availability Available upon request
Brand Designation OEM / ODM Customization

Main Features & Advantages
  • ✓ Exceptional Flexibility: The multi-layered construction effectively absorbs and compensates for structural vibrations, mechanical shocks, and thermal expansion/contraction, protecting delicate battery terminals and electrical components from stress damage.
  • ✓ Superior Electrical & Thermal Conductivity: Manufactured from premium-grade copper materials, delivering low resistance, high current-carrying capacity, and excellent heat dissipation.
  • ✓ High-Precision Customization: Supported by robust CNC machining capabilities, we can process highly complex shapes and hole patterns with exact precision, ensuring perfect drop-in replacements or first-time fits for new assemblies.
  • ✓ Enhanced Durability: Optional premium surface treatments like tin or nickel plating provide superior resistance to oxidation and corrosion, extending the operational lifespan of the components even in harsh industrial environments.
  • ✓ Reliable Manufacturing Partner: Backed by Shenzhen Sunmy Hardware Co.,Ltd.'s rigorous production standards, ensuring consistent quality from the first prototype to high-volume mass production.

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Get a Fast, Technical Quote & Free DFM Review

Don't let tolerance stack-up delay your product launch. Submit your project details, and our engineering team will evaluate your design for manufacturability before the first cut.


Frequently Asked Questions
Q What drawing formats do your engineers accept for customized busbars?
We operate with high flexibility to meet your design needs. We accept all major industry-standard formats, including 2D/3D CAD, DWG, STEP, IGS, and PDF. Our engineering team reviews your drawings to optimize the CNC machining process for both cost efficiency and performance.
Q Do you provide samples before committing to a bulk order?
Yes. As a solutions-oriented manufacturer, we actively support your R&D and validation processes. We can provide customized samples for your testing and approval before initiating mass production.
Q How do you guarantee the quality and precision of the finished parts?
Quality is at the core of our operations at Shenzhen Sunmy Hardware Co.,Ltd. Our facility is proudly ISO 9001:2015 certified. Every batch goes through strict quality control protocols, including precise dimensional verification, material conductivity testing, and thorough visual inspections of the machined surfaces and laminations.
Q What surface treatment options are available for the laminated copper busbars?
We offer several surface treatment options to suit your application environment, including Tin Plating, Nickel Plating, and Bare Copper. Tin and nickel plating provide enhanced resistance to oxidation and corrosion, making them ideal for harsh industrial or outdoor environments, while bare copper is suitable for standard indoor applications.
Q Can you manufacture busbars for EV battery pack applications with complex geometries?
Absolutely. Our advanced CNC machining capabilities allow us to produce highly complex 2D and 3D geometries, including U-shapes, S-bends, and multi-angled configurations. These are specifically designed to navigate structural constraints within EV battery packs, power inverters, and other compact electrical assemblies.
Q What is the minimum order quantity, and do you support OEM/ODM projects?
We support both OEM and ODM customization projects. There is no fixed minimum order quantity for custom parts — we work with clients from prototype stage through to high-volume mass production. Please contact our team with your project specifications, and we will provide a tailored production plan and competitive quotation.

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