Surface Finishing Service
Zinc Plating Services for Industrial Metal Components
Corrosion resistance is a critical requirement for steel fasteners, brackets, and structural components used in robotics, automation, and industrial machinery. At BGCNC, we integrate zinc plating directly into your manufacturing workflow, so your parts meet strict technical specifications for durability — without the logistical headache of coordinating separate finishing suppliers.
- Thickness Range
- 5–25 μm
- Salt Spray
- 24h–200+ h
- Compliance
- RoHS
Why Zinc Plating for Your Mechanical Parts
Zinc plating acts as a sacrificial anode, corroding before the base metal to protect your steel parts from environmental degradation. For B2B hardware manufacturers, this process is the standard for balancing cost, corrosion performance, and aesthetic finish.
Unlike decorative coatings, our industrial zinc plating services focus on functional performance. We manage the process to ensure your parts maintain dimensional accuracy — vital for threaded fasteners, precision brackets, and components with tight assembly tolerances.
Our Technical Capabilities
We manage the plating process through our vetted network of specialized partners, ensuring the finish meets your specific requirements for salt spray testing, thickness, and color. By overseeing the entire production cycle — from CNC machining or stamping to the final surface treatment — we prevent the quality gaps that typically occur when moving parts between different vendors.
Plating Type
Alkaline Zinc, Acid Zinc
Color Options
Clear (Blue/White), Yellow (Iridescent), Black
Thickness Range
5 μm – 25 μm (Customizable)
Corrosion Resistance
24h to 200+ hours (Neutral Salt Spray / ASTM B117)
Post-Treatment
Trivalent Chromate (RoHS Compliant)
Primary Base Materials
Carbon Steel, Alloy Steel, Iron
Managing Dimensional Tolerance After Plating
A common failure point in sourcing is ignoring the thickness of the plating layer during the design phase. If your CNC machined parts have tight fits or fine threads, a standard plating layer can cause assembly interference.
Our engineering team reviews your drawings before production begins. We calculate the expected coating thickness and, if necessary, adjust the initial machining dimensions so the final, plated part falls within your specified tolerance range. This proactive approach prevents costly rework and assembly delays on your production line.
Tolerance Review Workflow
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1
Drawing and DFM review before production begins.
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2
Coating thickness calculated against your fit and thread requirements.
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3
Initial machining dimensions adjusted where needed.
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4
Final plated part verified within your specified tolerance range.
Streamlined Supply Chain for Plated Components
Managing multiple suppliers for machining, fabrication, and surface finishing often leads to communication errors and delivery delays. BGCNC acts as your single point of contact. We handle the coordination between the machine shop and the plating facility, ensuring quality control inspections occur at both the pre-plating and post-plating stages.
Integrated Quality Control
We verify that plating thickness is uniform across high-volume batches.
RoHS Compliance
We ensure all chromate conversion coatings meet international environmental standards.
Simplified Logistics
Parts arrive at your facility ready for assembly, with all documentation and inspection reports managed by our team.
Selecting the Right Finish for Your Application
Not every project requires the same level of protection. We help you choose the most cost-effective path based on your product's lifecycle and environment.
Clear (Blue/White) Zinc
Best for indoor applications where a clean, silver appearance is preferred.
Yellow Zinc
Provides higher corrosion resistance than clear zinc and is easily identifiable during assembly.
Black Zinc
Frequently used for aesthetic consistency in industrial equipment or to reduce light reflection.
If your project requires extreme corrosion resistance beyond standard zinc plating, we can pivot to alternative treatments such as zinc-nickel alloy plating or powder coating, depending on your specific environmental exposure requirements.
Request a Quote for Your Project
Whether you are sourcing a new run of custom brackets or moving an existing project to a more reliable supply chain partner, we are ready to assist.
To receive an accurate quote, please provide your CAD files, material specifications, and the required salt spray resistance or thickness standards. Our engineers will perform a DFM (Design for Manufacturing) review to identify any potential issues with coating coverage or tolerance before production begins.
Ready to start your project?
Send your requirements and drawings to info@bgcnc.com.
BGCNC · Hongrongyuan · Honghu-Technologiepark, Bezirk Longhua, Shenzhen, China