About Yongxin

Yongxin Industrial is a high-tech enterprise focusing on electrophoretic processing for metal surface treatment, located in Qiaotou Town, Dongguan City. With nearly 10 years of industry experience, the company has adhered to the progressive development philosophy since its establishment. We have recruited outstanding industry talents and built a professional team integrating research and development, production, processing and sales of electrophoretic coating. The company can deliver high-standard products with high salt spray resistance, corrosion resistance and ultraviolet resistance according to customer requirements. Through in-depth research and continuous technological breakthroughs, we have solved various industrial technical difficulties and gained high recognition from customers for reliable product quality. The company has obtained multiple national utility model patents. Since its establishment, we have passed authoritative certifications including ISO9001 Quality Management System Certification, ISO14001 Environmental Management System Certification and IATF16949 Automotive Quality Management System Certification. In 2023, we were officially awarded the title of National High-Tech Enterprise.
To optimize the industrial layout and provide global one-stop processing services, the company has expanded supporting businesses including CNC precision machining, die casting and metal stamping. We have built a diversified metal processing system and realized the complete industrial chain of metal forming, precision machining and surface treatment. Customized production for various metal hardware products is available to comprehensively improve our comprehensive service capability. In 2025, we completed the expansion of a modern factory with a total plant area of 10,000 square meters. With upgraded production lines and processing equipment, we can efficiently undertake large-batch and multi-category orders to meet customers’ large-scale supply requirements.
In terms of production facilities, the company owns 6 professional electrophoresis production lines, equipped with more than 20 general processing equipment such as sand blasters, polishers, shot blasting machines and laser equipment. Meanwhile, we are equipped with over 20 CNC machines, more than 10 die-casting machines and more than 10 metal stamping machines to ensure strong production capacity for metal forming and precision machining. We have a complete quality inspection system with more than 20 high-precision testing instruments. The testing equipment includes internationally advanced optical instruments such as German FISCHER film thickness gauge, Swiss Zehntner gloss meter, Japanese Konica Minolta spectrophotometer and Japanese Mitutoyo roughness meter. In addition, we are equipped with salt spray tester, constant temperature and humidity tester, reflectometer, electron microscope, tape abrasion tester, alcohol rubber friction tester and tank solution analysis equipment. Every production procedure is strictly inspected to guarantee stable and reliable product quality.
Our processed products are widely used in automobiles, bicycles, communication equipment, consumer electronics, drones, security and other industries. We have long provided high-quality supporting processing services for well-known domestic and foreign brands including Huawei, DJI, OPPO, Panasonic, BYD, VIVO, Apple and Foxconn. We have earned a good industry reputation for stable quality and efficient delivery.
Adhering to the professional spirit of "Forging Ahead and Striving for Perfection" and the business philosophy of "Quality First, People-Oriented, Honest and Trustworthy", we take "Serving, Satisfying and Improving Customers" as our core development goal. In the future, the company will continue to upgrade towards specialization, refinement and intelligence. On the one hand, we will cultivate high-end technical talents to provide customized and high-quality processing solutions to meet customers' high-end personalized demands. On the other hand, we will increase investment in automated intelligent equipment, optimize production structure, reduce labor and energy consumption, and practice green production concepts. We are committed to building a modern, clean and intelligent processing enterprise.
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World-Class Team
Graduates from top universities worldwide
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Advanced R&D
Self-developed
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Innovation Focus
Multiple innovative technologies

Our Products

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High Salt Spray Electrophoresis

High Salt Spray Electrophoresis

Model: Anion Electrophoretic Coating
Parameters: Coating: Uniform and fine
Colour: white,black (Customizable)
salt spray resistance: can reach 300-1000 hours
Anti-rust performance:good
Anti-corrosion performance:good
Anti-fading performance:good
Wear resistance:good

Electrophoretic Coating

Electrophoretic Coating

Model: Stamped Parts + Electrophoresis
Parameters: Coating: Uniform and fine
Colour: white,black (Customizable)
Anti-rust performance:good
Anti-corrosion performance:good
Anti-fading performance:good
Wear resistance:good

White Electrophoretic Coating

White Electrophoretic Coating

Model: CNC + Electrophoresis
Parameters: Coating: Uniform and fine
Colour: white (Customizable)
Anti-rust performance:good
Anti-corrosion performance:good

E Coating

E Coating

Model: black E Coating
Parameters: Detailed Specifications and Characteristics of Automotive Electrophoretic Coating Parts
Automotive electrophoretic coating (E-Coating) is one of the most strictly regulated surface treatment processes in automotive manufacturing. It is primarily applied to fasteners, chassis components, body frames, door hinges, engine brackets, and other parts. Below are its core specifications and characteristics:
Core Characteristics
Superior Corrosion Resistance: Electrophoretic coating forms a molecular-level bond with the substrate, effectively isolating the base metal from moisture and road salts. It typically passes over 1,000 hours of Neutral Salt Spray Testing (NSS), significantly extending the service life of components in harsh environments.
360° Uniform Coverage with No Dead Corners: Based on Faraday's principle of electromagnetism, charged paint particles deposit evenly across the workpiece. Even deep cavities, tight seams, internal holes, and complex 3D geometries achieve over 95%-98% coverage, completely eliminating the dead corners associated with traditional spray painting.
Exceptional Film Thickness Consistency: Automated E-Coat lines precisely control coating thickness, typically keeping the tolerance within ±1µm (with standard thicknesses ranging from 15-25 microns). This ensures highly consistent anti-corrosion performance for every part.
Eco-Friendly & Green: Utilizing water-based paints free of heavy metals (e.g., lead-free and chrome-free systems), it features extremely low VOC (Volatile Organic Compound) emissions, fully complying with strict international environmental standards like RoHS.
Outstanding Adhesion & Abrasion Resistance: The coating bonds extremely firmly to the substrate, preventing peeling or blistering during assembly, transportation, or vehicle operation. It also withstands stone chipping and extreme temperature fluctuations (-40°C to over 85°C).
Detailed Specifications
Standard Coating Thickness: 15 - 25 µm (Customizable according to customer requirements, with thickness variation controlled within ±5%).
Salt Spray Test Standards: Typically achieves 500 - 1,500 hours without red rust in Neutral Salt Spray Testing (NSS); CASS testing can exceed 96 hours.
Applicable Materials: Widely suitable for carbon steel, alloy steel, aluminum alloy, magnesium alloy, zinc alloy, and other metal substrates.
Appearance & Color: Most commonly available in black (matte or glossy), with custom colors like grey or silver also available upon request. The surface texture is smooth and uniform, free from defects like flow marks or blisters.
Assembly Performance (For Fasteners): Features an optimal coefficient of friction, preventing thread clogging and ensuring precise torque control. It does not interfere with the precision assembly of automotive components.

Electrophoretic coating

Electrophoretic coating

Model: black Electrophoretic coating
Parameters: Coating: Uniform and fine
Colour: black (Customizable)
Film thickness: 15~25μm(Ordinary parts,It can be customized as needed)

Company Gallery

Certifications & Awards

Certificate of National High-Tech Enterprise
Certificate of National High-Tech Enterprise
ISO 14001:2015 Environmental Management System
ISO 14001:2015 Environmental Management System
ISO 9001:2015 Quality Management System
ISO 9001:2015 Quality Management System

Success Stories & Case Studies

Motor Manufacturer

Motor Manufacturer

Applying anti-corrosion and anti-rust electrophoretic coating (E-coating) to electric motors ensures a neutral salt spray resistance of over 720 hours, along with a smooth and glossy finish. Compared to traditional non-E-coating processes, the electrophoretic coating process extends the service life of the product by 5 to 10 years."
Uniform full coverage of complex motor structural gaps, stable anti-corrosion performance under long-term harsh working conditions; low material loss during coating, supporting mass continuous production for large-volume motor orders.

📍 Location: JP 📦 Quantity: 15000000 units
CNC Precision Machining Manufacturer

CNC Precision Machining Manufacturer

Uniform and fine coating: The electrophoretic film layer is fully covered, with no missed coating at the corners or inner cavities, and strong adhesion. Strong anti-corrosion and weather resistance: Resistant to acid and alkali, rust-proof, and anti-aging, significantly extending the service life of the product. Strict quality control system: Full-process standardized operation, small batch color difference, stable and consistent quality; Flexible and efficient customization: Supports multi-material and multi-color customization, with fast delivery and mass production on demand.
Service Source precision processing: Focusing on electrophoresis for many years, with rich industry experience and mature and reliable technology. Rapid sample customization: Quick sample confirmation, shortening the production cycle; Strict quality inspection and shipment: Full inspection of finished products to eliminate defective items and ensure delivery quality. Thoughtful after-sales guarantee: Dedicated personnel throughout the process for coordination, prompt after-sales response, and eliminating customers' worries.

📍 Location: CN 📦 Quantity: 10000000

Company & Product Videos

Company Introduction & Factory Tour

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Product Demonstration - Kestrel K-1

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Technology Innovation Showcase

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Customer Testimonials & Success Stories

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