Shielding, Thermal Conductivity, Wave Absorption, and New Energy Materials
Crafted with Care · Quality Guaranteed · Professional Service
View our productsExquisite Craftsmanship
20 years of dedicated EMI and new energy material manufacturing
View our productsSuperior Product Quality
Strictly adhering to the ISO9001 quality management system, every production step undergoes precision inspection to ensure zero-defect delivery.
Extensive production experience
20 years of manufacturing experience, serving 500+ enterprise customers with deep expertise in technical requirements across industries.
Comprehensive after-sales service
7×24 hours of technical support, rapid response to customer needs, and lifetime quality assurance
Our Products
Provides a full range of shielding, thermal conductive, and electromagnetic wave-absorbing materials for new energy applications, meeting the needs of the communications, automotive, energy storage, electronics, and display industries.
CVD Carbon Heat Dissipation Film
Thermal conductivity: 2000-2300 W/m·K. Ideal for AI chip near-junction cooling, high-end laser optical windows, 5G millimeter-wave high-frequency device substrates, and quantum computing chip packaging.
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Copper-plated film
Copper-clad film is a conductive composite film made by depositing a high-purity copper layer onto substrates such as PET, PP, or PI films using vacuum magnetron sputtering or electroless plating. It offers excellent conductivity, electromagnetic shielding, and thermal conductivity, with uniform surface quality, strong adhesion, and bend resistance. The film can be laminated, coated, slitted, or die-cut, making it suitable for applications in electronic shielding, new energy, and thermal management.
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Silver-coated film
Silver-coated films are high-conductivity composite films made by depositing a layer of high-purity silver onto substrates such as PET, PI, or PC via vacuum deposition or magnetron sputtering. They offer excellent conductivity, electromagnetic shielding, and antimicrobial properties. The films feature a bright finish, strong adhesion, and oxidation resistance. They can be laminated, slit, and die-cut for use in high-end electronic shielding, medical devices, new energy applications, and more.
View DetailsCarbon-Copper Composite Heat Sink
Thermal conductivity 550-950 W/m·K for new energy vehicle IGBT power modules, data center liquid-cooled server heat sinks, industrial fiber lasers, and high-power LED lighting
View DetailsTechnical Capabilities
Equipped with advanced production facilities and a skilled technical team to ensure product quality and on-time delivery.
Advanced Equipment · Expert Craftsmanship
Machining Center
Equipped with 30+ imported machines, featuring metal plating production lines and high-precision machining.
Automated Production Line
Multi-functional integrated production line in a high-cleanliness environment with a daily capacity of 100 million units.
Professional Testing Center
Shielded room, coordinate measuring machine, spectrometer, and other precision testing equipment
R&D Team
20+ senior engineers providing end-to-end services from design to mass production
Innovate for Better Customer Solutions
Continuous R&D investment, adoption of advanced equipment, and optimized processes to deliver superior products and services.
About EMI
Founded in 2002, Purent Technology is a high-tech enterprise specializing in the R&D, production, and sales of shielding, thermal conduction, microwave absorption, and new energy materials. The company operates 20000 square meters of modern manufacturing facilities equipped with advanced production equipment and testing instruments.
We serve industries including new energy, healthcare, power, energy storage, electronics, telecommunications, and aerospace, building long-term partnerships with over 500 enterprise clients. Certified under ISO9001, IATF16949, and other quality management standards, we ensure consistent, reliable product quality.
