Hard Anodized Aluminum Precision
surface durability.
2. Process: Machining first, then anodizing for corrosion resistance and wear protection.
3. Materials: Common alloys include 6061, 6063, and high-strength 7075.
4. Precision: High accuracy machining with compensation for oxide layer growth.
5. Finishing: Multiple anodized colors and surface textures available.
6. Capability: Ideal for housings, panels, and structural components.
7. Quality: Strict inspection ensures stable color and dimensional control.
Hard Anodized Aluminum Precision Parts – Custom CNC Manufacturing
Hard Anodized Aluminum Precision production provides longevity and tight tolerances for your project. Since 2008, Shenzhen Ruiyihang Technology Co., Ltd. has made unique precision components using sophisticated CNC machining and Type III hard anodising to reach HV 400–600 surface hardness. Our engineering-driven method maintains ±0.02 mm tolerances (±0.01 mm for important features) and 25-50 μm anodising thickness. We transform your plans into wear-resistant, corrosion-proof components for demanding applications with 9+ years of production experience and 15+ years of engineering knowledge.
What Makes Hard Anodized Aluminum the Right Choice?
You require durable parts. Hard anodising makes aluminium resistant to wear, corrosion, and hostile conditions. Type III generates a deep oxide layer that penetrates and grows on the base material, unlike ornamental finishes.
Multiple benefits for your parts. The process greatly enhances surface hardness while keeping aluminum's lightweight qualities. Scratch, abrasion, and chemical resistance increase. This makes them ideal for coffee machine housings, robotics, industrial, and electrical enclosures.
Dark grey, black, bronze, or bespoke colours are available. Protective and professional look are combined.
Our Manufacturing Process
Starting with your sketches. No middlemen—our engineers evaluate your PDF, DWG, STEP, or IGS files. This one-on-one contact helps us optimise your design for manufacturability, recommend materials, and discover concerns before production.
Machining first. Your parts are made from aluminium alloys like 6061-T6, 7075-T6, or your materials using multi-axis CNC milling and turning. Ra 0.8-1.6 μm surface roughness is achieved before anodising. Critical dimensions are maintained at ±0.01 mm where necessary.
Hard anodising follows. We safeguard parts with Type III anodising while compensating for dimensional variations. We compute machining allowances to preserve your final tolerances following treatment as the oxide layer develops inward and outward.
Both levels have quality inspection. We check measurements during machining and coating thickness, colour uniformity, and surface quality after anodising.
Technical Specifications
| Item | Description |
|---|---|
| Material | Aluminum (6061, 7075 or per customer request) |
| Color | Dark Gray, Black, Bronze, or Custom Colors |
| Process | CNC Milling / CNC Turning / Hard Anodizing (Type III) |
| Surface Finish | Hard Anodized (Wear-Resistant Surface) |
| Tolerance | ±0.02 mm (±0.01 mm for critical features) or per drawing |
| Surface Roughness | Ra 0.8–1.6 μm (before anodizing) |
| Anodizing Thickness | 25–50 μm |
| Hardness | Up to HV 400–600 |
| Feature | High hardness, excellent wear resistance, superior corrosion resistance, and long service life |
| Size | Per Customer Drawing |
| Drawing Format | PDF / DWG / STEP / IGS |
| Production Volume | Prototype to Mass Production |
| Inspection | 100% Inspection / Sampling Inspection |
Why Partner With Us?
Speed matters. You'll receive quotes quickly after our engineers review your drawings. Simple parts can be sampled in as fast as 3 days, with typical lead times of 7 days for prototypes.
Engineering support reduces risk. Our team provides practical recommendations on material selection, structural design, dimensional tolerances, and surface finishing. This approach helps you avoid costly mistakes and improves your product's manufacturability.
Complete customization. We offer 100% OEM/ODM manufacturing with no standard products. Whether you need complex geometries, special machining processes, or small-batch production, we handle it.
Quality you can verify. We follow international standards including material certification, dimensional tolerance standards, and FDA compliance for food-contact applications. Salt spray testing reports are available upon request.
Reliable after-sales. Quality issues reported within the same month trigger remanufacturing within 1 week, with shipping costs fully covered by us.
Common Applications
Your Hard Anodized Aluminum Precision parts work across industries. Coffee machine manufacturers use them for housings that resist heat and moisture. Electronics companies need enclosures that look professional while protecting sensitive components. Robotics engineers specify them for structural parts requiring both strength and light weight.
Automotive applications benefit from corrosion resistance. Industrial equipment relies on the wear resistance for sliding components and mechanical parts. Panels and decorative elements gain both durability and visual appeal.
FAQ
Q: Why is harsh anodising used?
Hard anodising (Type III) provides better wear and corrosion resistance than Type II because to its thicker surface.
Q: Can CNC aluminium components be hard anodised?
CNC machined, turned, or drilled aluminium components can be hard anodised without losing accuracy.
Q: What distinguishes hard and normal anodised aluminium?
Hard anodised aluminium has a thicker oxide layer (50-150 µm), higher hardness (60-70 HRC), and superior wear resistance, whereas ordinary anodising provides ornamental and basic corrosion protection (~5-25 µm).
Q: Can hard anodised aluminium colours be customised?
We hard anodise CNC machined components in hard silver, natural, and black.
Contact Us
Ready to discuss your precision requirements with Hard Anodized Aluminum Precision? Contact our engineering team at bill@bldmachining.com for drawing review and fast quotation.
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