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Anodized Parts in China
If your aluminum components need improved corrosion resistance, surface hardness, or a specific colour finish, sourcing anodized parts from verified Chinese suppliers is a cost-effective solution. China has a large base of anodizing specialists that serve global clients in electronics, automotive, aerospace, and consumer products. As part of Haizol's finished metal products directory, verified suppliers are pre-screened for capability and certifications.
Chinese anodizing suppliers offer Type II (sulphuric acid) and Type III (hard anodizing) processes, with colour options including clear, black, red, blue, gold, and custom shades. Many factories combine CNC machining with in-house anodizing, delivering fully finished anodized parts from a single facility. This eliminates the need to coordinate separate machining and finishing vendors.
Verified anodizing suppliers on Haizol hold ISO 9001 certification, and many comply with MIL-A-8625 standards for aerospace applications. Their quality systems include coating thickness measurement, salt spray testing, and colour consistency checks. Many factories also produce other finished metal products. Many buyers combine this with CNC machined parts from the same platform.
The risk when sourcing anodized parts offshore is colour inconsistency between batches and poor masking on surfaces that should remain uncoated. For related needs, explore extruded products from verified factories on Haizol.
Haizol matches your RFQ with verified suppliers experienced in anodizing. You receive multiple quotes, typically within 24 hours, and communicate directly with the factory. Design files are protected through configurable NDA options.
Other related parts categories: Other Finished Metal Products
Frequently Asked Questions
What Is the Difference Between Type II and Type III Anodizing?
Type II anodizing produces a thin oxide layer (5_25 _m) for corrosion protection and colour. Type III (hard anodizing) creates a thicker layer (25_75 _m) for wear resistance and durability. Specify your anodizing type in your RFQ.
Does Anodizing Change Part Dimensions?
Yes, slightly. Anodizing builds approximately one-third outward and two-thirds inward. Type II adds roughly 5_13 _m per surface. Factor this into your tolerance calculations when designing anodized parts.
What Colours Are Available for Anodized Parts?
Standard colours include clear, black, red, blue, gold, and green. Custom colours can be matched to Pantone or RAL references. Specify your colour requirement in the RFQ.
Can Suppliers Combine CNC Machining and Anodizing?
Yes. Many verified factories on Haizol machine and anodize in-house, producing fully finished anodized parts from one supplier. This reduces lead time and ensures tighter quality control.
What Is an Anodized Part?
An anodized part is usually an aluminum component with an electrochemical oxide layer that improves corrosion resistance, wear resistance, and appearance. Haizol's anodized parts directory connects companies with Chinese factories that can make the base part and control anodizing type, color consistency, masking, cosmetic inspection, and related machining or fabrication.
What Metals Cannot Be Anodized?
Steel is not anodized in the same way as aluminum, and some alloys produce poor color or coating results. Aluminum is the most common anodized material; titanium and magnesium can also be anodized for certain applications. Requests through Haizol should identify the exact alloy.
What Is the 720 Rule for Anodizing Aluminum?
The 720 rule estimates anodizing time from coating thickness and current density for Type II sulfuric anodizing. For custom anodized part requests through Haizol, specify still specify coating type, color, thickness if required, masked areas, cosmetic criteria, and the base part material.
Can I Order Custom Anodized Parts Online?
For custom anodized parts, Haizol works best when the base part and finish are both defined. Material, material grade, surface roughness, secondary process, and special requirements should state anodizing type, color, coating thickness, masked areas, quantity, and cosmetic criteria.
How Much Does It Cost to Anodize a Part?
Anodizing cost depends on part size, alloy, surface preparation, anodizing type, color, coating thickness, masking, racking, inspection, quantity, and cosmetic rejection risk. Haizol directory profiles identify factories that can make the base part and manage finish control for the anodized surface.