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.
View Details
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.
View Details
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
Customer Cases
Serves 500+ enterprise customers across core industries including telecommunications, new energy, automotive, and electronics.
Partner Companies
Huawei
Communication Equipment
ZTE
Communication Equipment
BYD
New Energy Vehicles
CATL
Power battery
Sungrow
Photovoltaic Energy Storage
Inovance
Industrial Automation
Success Stories
5G Communication Base Station
Top domestic communication equipment vendors
Challenge
5G base stations experience severe high-frequency electromagnetic interference; efficient shielding materials are required to ensure signal quality.
Solutions
Combines custom conductive foam with beryllium copper spring fingers for shielding effectiveness of -80dB.
Effect
Signal interference reduced by 90%, base station stability improved by 40%
Use ProductConductive foam, beryllium copper springs, shielding film
New Energy Vehicles
Leading New Energy Vehicle Manufacturer
Challenge
800V high-voltage platform IGBT modules require significant heat dissipation, which traditional materials cannot meet.
Solutions
Copper-carbon composite heat sink with thermal conductivity of 900W/m·K and CTE matched to the chip.
Effect
Reduced thermal resistance by 35%, extended module lifespan by 2x, and achieved automotive-grade certification.
Use ProductCopper-Carbon Composite Heat Sink, Thermal Conductive Silicone Sheet
Energy Storage System
Leading energy storage equipment manufacturer
Challenge
Energy storage PCS offers high power density with strict thermal and EMC requirements.
Solutions
Integrated shielding and thermal conduction solutions; customized EMI-absorbing materials to reduce internal interference.
Effect
System efficiency increased by 5%, temperature rise reduced by 15°C, and EMC certification achieved.
Use ProductAbsorbent foam, thermal graphite sheet, conductive rubber
Consumer Electronics
Smart Device Manufacturer
Challenge
Compact devices have limited internal space, requiring ultra-thin, high-efficiency shielding materials.
Solutions
Combines performance and space efficiency with a 0.1mm ultra-thin shielding film + flexible conductive foam.
Effect
Device thickness reduced by 20%; EMC test passed on first attempt.
Use ProductUltra-thin shielding film, flexible conductive foam
Industrial Automation
Leading enterprise in industrial control equipment
Challenge
Industrial environments feature complex electromagnetic interference; equipment must operate reliably over the long term.
Solutions
Custom high-reliability conductive rubber gaskets with high/low temperature resistance and anti-aging properties
Effect
Device failure rate reduced by 60%, service life extended by 3 years.
Use ProductConductive rubber, metal conductive tape
Customer Reviews
"Plintech's shielding materials offer stable performance, and their technical support responds promptly. They are a trusted long-term supplier."
Engineer Zhang
R&D Director, Communication Equipment
"Strong customization capabilities: receive samples in 7 days, meet mass production deadlines on time, and enjoy a proven quality pass rate of 99.9%."
Manager Li
Procurement Manager at a New Energy Vehicle Company
"The thermal interface material solved our high-power device cooling challenges, significantly reducing thermal resistance and greatly improving system stability."
Engineer Wang
Technical Director, Energy Storage Equipment Company
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.
