“Precision engineered for today. Built to perform for years to come.”
“JUMAI combines precision engineering, consistent quality, and responsive service to deliver components we can rely on.”
— International OEM Partner
JUMAI Hardware Technology is a trusted manufacturing partner based in Dongguan, China, specializing in custom copper busbars, deep-drawn components, precision stamping, and tooling solutions.
With 10+ years of manufacturing experience, our team works closely with customers from initial designs and prototypes through tooling and mass production. Our in-house capabilities allow us to maintain tighter quality control and respond quickly to design and production requirements.
Whether you need a custom copper busbar for an EV battery system or precision metal components for electronics, power, telecommunications, and industrial applications, we deliver solutions engineered to meet your exact specifications.
Precision Manufacturing, From Design to Production
From custom copper busbars to precision tooling, JUMAI combines engineering expertise and advanced manufacturing capabilities to deliver reliable components for demanding industrial applications.
Custom Copper Busbars
Deep Drawn Components
Stamping Die Design
Tooling & Mold Components
Precision Solutions for Demanding Industries
From high-power electrical systems to advanced electronics and new energy technologies, JUMAI delivers precision-manufactured components designed for demanding applications and reliable performance.
Insights, Trends & Manufacturing Expertise
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Battery Bus Bar Copper Solutions for High-Current EV and Energy Storage Projects
Battery packs, energy storage cabinets, charging systems, power conversion units,…
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DC Bus Bar Design for Solar Inverters, PCS Cabinets and Energy Storage Systems
This is especially true in solar inverters, PCS cabinets and…
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Insulated Busbar Guide for EV Batteries, Switchgear and Power Cabinets
An insulated busbar looks simple from the outside: a copper…
Trusted by Global Companies
JUMAI Tech delivered exceptional braided copper busbars for our EV battery packs. The quality, flexibility, and conductivity exceeded our stringent testing requirements. An excellent partner.
John D.
“Their deep drawn stamping capabilities are top-notch. They helped us reduce manufacturing costs by designing a custom progressive die for our complex sensor housings. Highly recommended.”
Sarah L.
“Their deep drawn stamping capabilities are top-notch. They helped us reduce manufacturing costs by designing a custom progressive die for our complex sensor housings. Highly recommended.”
Michael T.
“JUMAI understood our technical requirements from the beginning and delivered components with excellent dimensional accuracy. Their communication throughout the tooling and production process made the entire project straightforward and efficient.”
Robert Miller
“The team at JUMAI provided a reliable solution for our custom copper components. From material selection to final production, they maintained consistent quality and paid close attention to our specifications. We look forward to working with them again.”
Thomas Schneider
Ready to Bring Your Design to Production?
Have a custom copper busbar, deep-drawn component, stamping die, or tooling project in mind? Send us your CAD drawings, specifications, or project requirements. Our engineering team will review your needs and provide a professional manufacturing assessment and preliminary quote.