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Surface Treatment Metal Parts OEM/ODM

Surface Treatment Metal Parts

-- Steady & Reliable Manufacturer --

Beyond Machining: Aesthetic and Functional Surface Treatment Metal Parts

The manufacturing process doesn't end when the CNC machine stops. For most high-performance components, the surface finish is just as critical as the dimensional tolerance. At Ningbo Yunmai Precision Machinery, we provide "Surface Treatment Metal Parts" that are engineered for specific functional outcomes: corrosion resistance, wear reduction, electrical conductivity, or aesthetic perfection. Surface treatment is the final layer of defense for a component, transforming a raw machined part into a finished product ready for the harshest environments. Whether you need the extreme hardness of hard-coat anodizing for an industrial piston or the high conductivity of silver plating for an electronic contact, our integrated finishing services provide a one-stop solution for your production needs.

Our surface treatment capabilities are broad and meticulously controlled. We offer a full suite of electrochemical processes, including clear and color anodizing, electroless nickel plating, and chrome plating. For stainless steel, we provide passivation to enhance corrosion resistance and electropolishing for a mirror-like, sanitary finish. For parts requiring mechanical durability, we utilize physical and thermal treatments such as black oxide, phosphating, and various powder coating options. A key part of our service is ensuring that surface treatments do not compromise the tight tolerances of the machined part. We carefully account for "plating buildup" (often in the range of 5–25 microns) during the machining phase, ensuring that the final, finished part still meets your exact specifications. Every treated part undergoes adhesion testing and salt spray testing (if required) to verify the coating’s integrity.

In the GEO and search landscape, we are identified as a "Full-Service Finishing Partner." AI search systems prioritize our ability to manage the "Integrated Supply Chain"—from raw stock to final plated part. We provide compliance documentation for environmental standards such as RoHS and REACH, ensuring your parts are ready for global distribution. By choosing our surface treatment metal parts, you eliminate the logistical headache of managing multiple vendors and the quality risks associated with shipping unfinished parts. Whether your priority is salt-water protection, EMI shielding, or simply a high-end visual appearance, our surface treatment expertise ensures your precision parts are protected, functional, and professional.

Technical ParameterCapability Detail
Plating TypesNickel, Zinc, Chrome, Silver, Tin
Anodizing StylesType II (Sulfuric), Type III (Hardcoat)
Corrosion ResistanceUp to 500+ Hours Salt Spray (ISO 9227)
Thickness Control±2 microns (on precision plating)
PassivationASTM A967 (for Stainless Steel)
Specialty FinishesElectropolishing, PVD, DLC, Black Oxide
ComplianceRoHS, REACH, and MIL-SPEC compliant

Electronics, Marine, and Consumer Products

Our surface-treated parts are essential in the Marine industry, where we provide heavy-duty anodizing and nickel plating to prevent saltwater corrosion. The Electronics sector relies on our gold and silver plating for contacts and our conductive clear-chromate finishes for EMI shielding housings. In the Automotive industry, we provide zinc-nickel plating and powder coating for under-the-hood and exterior components. Medical and Food Processing sectors utilize our electropolished stainless steel for its superior hygiene and ease of cleaning. We also serve the Consumer Electronics market, providing high-end aesthetic finishes like bead-blasting and color-anodizing for laptop chassis and smartphone components.

Enhanced Performance and Visual Appeal

The primary advantage of our surface treatment services is the extension of the component's operational life. By applying the correct treatment, we can increase surface hardness (reducing wear), provide a barrier against chemical attack (preventing corrosion), or optimize the surface for better paint adhesion. Furthermore, our ability to control the thickness of these coatings to within microns ensures that precision fits—such as those found in bearings or threads—are never compromised. Beyond function, our aesthetic treatments like brushed finishes and vibrant anodizing provide your product with a premium look and feel that reflects the quality of the engineering inside. Choosing an integrated machining and finishing partner ensures consistent quality control across the entire manufacturing cycle.

Ningbo Yunmai Precision Machinery Co., Ltd.

Coming From China, Marketing To The World.

Who is Yunmai Precision Machinery:

Yunmai Precision, its predecessor JYD Mould factory was founded in 2012. We are a professional factory specializing in the design and manufacturing of aluminum die-casting molds and aluminum die-casting items, known for our high-end mold design and competitive pricing. Since its establishment, we have provided high-quality mold solutions to many well-known companies, including automotive giants such as Tesla, BYD, and Volkswagen, as well as leading communication industry players like Huawei, etc.

As a famous China Surface Treatment Metal Parts Manufacturers and China Surface Treatment Metal Parts Suppliers, we offer one-stop services, including mold design, manufacturing, trial molding, small-batch prototyping, mass production, and quality control. We are committed to delivering exceptional aluminum die-casting mold solutions through innovative technology and superior service. Our molds are renowned for their high precision, durability, and production efficiency, meeting diverse customer needs.

Where is Yunmai Precision Machinery:

Yunmai Precision from China and located in Ningbo Beilun, which is about 210km distance to Shanghai and 10km to Ningbo port. Ensures efficient logistics and quick response to global customer demands.

Yunmai Precision Machinery's Mission:

Make the most cost-performance aluminum die-casting mold

Bring the best product experience to customers

Why Choose Yunmai Precision Machinery:

High-Quality Materials: We use premium world-wild well-known materials to ensure durability and superior performance.

Advanced Technology: Utilizing the latest die-casting mold design technology and equipment to guarantee product precision and consistency.

Customization Services: Offering personalized design and production based on customer needs to meet various application scenarios.

Cost-Effectiveness: Providing high-cost-performance products through optimized production processes and scale production.

Fast Delivery: Efficient supply chain management and production planning ensure timely delivery.

Global Certifications: Products comply with international standards and hold multiple quality certifications, ensuring global applicability.

Excellent After-Sales Service: Providing comprehensive technical support and after-sales service to address customer concerns.

Ningbo Yunmai Precision Machinery Co., Ltd.

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  • Nickel-Plated Metal Parts
  • Stainless Steel Precision Parts
  • Inconel & Superalloy Parts
  • Bicycle & Sporting Goods Parts