What is your minimum order quantity for custom parts?

We support single-piece prototypes and low-volume runs through CNC machining, 3D printing and urethane casting, and scale to mass production through die casting, injection molding and stamping. Share your target quantity and our engineers will recommend the most cost-effective process.

What tolerances can Sunmy Hardware hold?

Standard CNC tolerances are ±0.01 mm, and critical features can be held down to ±0.005 mm. Dimensions are verified with CMM inspection and documented in FAI reports before shipment.

How do you protect my drawings and intellectual property?

We sign a Non-Disclosure Agreement with you by email before collecting any 3D or CAD files. You work directly with the factory, so your data is never handed off to brokers.

Which quality documents are available with shipments?

Material certificates, RoHS compliance documents, First Article Inspection (FAI) reports and CMM dimensional reports can be supplied per project.

Which manufacturing processes are done in-house?

CNC machining and stamping are performed in our own facilities. Casting and surface finishing are completed by audited partners. All final quality control, CMM inspection and FAI are executed in-house by Sunmy engineers before global shipping.

Which CAD file formats do you accept?

We accept STEP, IGES, STL, DWG/DXF and PDF 2D drawings. Physical samples can also be reverse-engineered.

Custom Flexible Laminated Copper Busbar OEM Manufacturer Supplier for EV Battery and Electrical Equipment Wholesale

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.

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 Conductivity

Manufactured from premium-grade copper materials, delivering low electrical resistance, high current-carrying capacity, and excellent heat dissipation.

High-Precision Customization

Supported by robust CNC machining capabilities, we process highly complex shapes and hole patterns with exact precision, ensuring perfect drop-in replacements or fits for new assemblies.

Enhanced Durability

Optional premium surface treatments like tin or nickel plating provide superior resistance to oxidation and corrosion, extending operational lifespan in harsh industrial environments.

Reliable Manufacturing Partner

Backed by Shenzhen Sunmy Hardware Co.,Ltd.'s rigorous production standards, ensuring consistent quality from the initial prototype to high-volume mass production.

Technical FAQ

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 cost and performance.

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.

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.

Which surface treatments are recommended for anti-oxidation protection?

We offer tin plating, nickel plating, and bare copper finishes. Tin plating provides excellent solderability and corrosion resistance, while nickel plating is ideal for high-temperature and harsh industrial environments.

Can your flexible busbars withstand continuous thermal expansion and vibration?

Yes. The multi-layered ultra-thin copper foil construction allows the busbar to flex dynamically, effectively dampening mechanical vibrations and absorbing thermal expansion without causing stress damage to connected battery modules or terminals.

What custom shape configurations can you manufacture?

Using multi-axis CNC machining and advanced press-welding, we can produce intricate 2D and 3D shapes, including U-bends, S-bends, right-angle turns, and custom hole patterns tailored to your enclosure dimensions.

Other Products

Custom Modular Plastic Enclosures...

Custom Die Cast Aluminum Finned H...

Custom Injection Molded Electroni...

Custom Precision Sheet Metal Equi...

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.

High-Quality Custom Flexible Laminated Copper Busbar for Battery & Electrical Equipment Manufacturer, Exporters

Product Description

Product Overview

Process & Manufacturing Insights

Key Specifications

Main Features & Advantages

Technical FAQ