Product Description

Our Anodized Aluminum Custom Parts are designed and manufactured to meet your exact engineering and aesthetic requirements. Through anodized oxidation treatment, the aluminum surface is transformed into a durable, corrosion-resistant, and decorative oxide layer. These parts are suitable for critical applications in aerospace, automotive, medical devices, electronics, and precision machinery.

We provide end-to-end services—from design consulting, anodizing treatment, quality inspection, to packaging and delivery.

Key Benefits

Durable and Long-Lasting	Anodized aluminum has a much longer lifespan than untreated aluminum, especially in outdoor or high-wear environments.
Custom Appearance	Color anodizing allows for a premium, consistent finish in black, silver, red, gold, blue, or custom shades.
High Precision	Every part is produced with tight tolerances and professional machining, ensuring seamless integration into your final product.
Eco-Friendly Process	Anodizing uses non-toxic chemicals, creates no harmful byproducts, and produces recyclable waste
Improved Adhesion	The anodized layer allows better adhesion for paints, adhesives, and lubricants, making it ideal for secondary processes

Functional Features

Type II – Decorative Anodizing Coating Thickness: 5–15 µm Surface Finish: Smooth, consistent, available in matte or glossy finishes Available Colors: Clear, Black, Red, Blue, Gold, or Custom Shades Typical Applications: Ideal for parts that require visual appeal and basic surface protection Commonly used in electronics, automotive interiors, enclosures, furniture, sports equipment Enhances resistance to fingerprints, smudges, and light abrasion Key Advantages: Uniform and customizable color finishes Minor scratch resistance Premium appearance suitable for consumer-facing products

Type III – Hardcoat Anodizing Coating Thickness: 20–25 µm (or thicker for special applications) Surface Appearance: Matte, dark (typically gray or black), very hard Surface Hardness: Up to 60–70 HRC (Rockwell C) Typical Applications: Best for components requiring high durability, wear resistance, and corrosion protection Widely used in aerospace, automotive, industrial machinery, medical equipment, robotics, and harsh environments Key Advantages: Significantly extends component life Excellent resistance to chemicals and high temperatures Lowers friction when combined with lubricants or coatings

Product Display

Application

Automotive Engine components, interior trim, nameplates	Aerospace Fuselage parts, brackets, housings, fasteners	Electronics Device enclosures, heat sinks, connectors
Medical Surgical tools, casings for medical equipment	Construction Window frames, railing hardware, fixtures	Consumer Products Laptop covers, sports equipment, furniture components

Product parameters

Attribute	Specification
Material Options	6061, 7075, 5052, 2024 Aluminum
Surface Finish	Clear, Black, Red, Blue, Gold, or Custom
Anodizing Type	Type II (Standard), Type III (Hardcoat)
Dimensional Tolerance	±0.01 mm
Max Machined Size	Up to 1200 mm x 800 mm
Min Wall Thickness	0.5 mm (depending on material)
Coating Thickness	5–25 µm
RoHS/REACH Compliant	Yes

Pre-Treatment

Step	Purpose
Degreasing / Cleaning	Removes oils, machining fluids, and contaminants from the surface
Etching	Uses caustic solution to clean and slightly roughen the aluminum
Desmutting	Removes non-aluminum residues (e.g., copper, silicon) after etching

Anodizing Process

Parameter	Type II (Standard Anodizing)	Type III (Hard Anodizing)
Electrolyte	Sulfuric acid (15–20%)	Sulfuric acid (15–20%) with stricter controls
Voltage	12–20 V	40–100 V (depending on part size and material)
Temperature	~20°C (68°F)	0°C to 5°C (32°F to 41°F)
Time	20–30 minutes (depending on desired thickness)	30–90 minutes (longer for thicker coatings)
Coating Thickness	5–15 µm	20–25 µm or more
Color Dyeing (optional)	Dye applied before sealing for colored finishes	Usually dark natural color; dyeing limited

Post-Treatment

Step	Purpose
Sealing	Closes microscopic pores in the anodized layer to improve corrosion resistance and dye stability (can use hot water, steam, or nickel acetate)
Rinsing	Thorough water rinse to remove residual chemicals
Drying	Air dry or oven dry depending on part and volume

Custom Process

Initial Inquiry

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Quotation

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Surface Preparation

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Packing & Delivery

Quality Control

Our QA system ensures consistency and reliability in every production batch:

• Incoming Material Inspection

• In-process Dimensional Checks using CMM and calipers

• Post-anodizing Adhesion and Thickness Test

• Salt Spray Test for corrosion resistance

• Color Matching and Finish Uniformity Review

• Final QC Report with photos and measurements available

Machine & Equipment List

Equipment	Description
Automatic Anodizing Line	Type II & III anodizing with color options
CMM (Coordinate Measuring Machine)	High-accuracy dimensional inspection
Spectrophotometer	Ensures color consistency and quality
Salt Spray Chamber	Corrosion resistance testing
Surface Roughness Tester	Measures Ra values for functional surfaces
Ultrasonic Cleaning Machine	Pre-treatment before anodizing

FAQ

Question	Answer
What industries typically use anodized aluminum parts?	These parts are widely used in aerospace, electronics, marine, medical equipment, architectural components, and robotics.
How do you ensure color consistency in anodized parts?	We use calibrated spectrophotometers and batch control during anodizing to ensure color uniformity, especially for large volume orders.
Can you handle both prototyping and mass production?	Yes, we specialize in both. Whether you need 1 prototype or 10,000+ units, we adjust our production line to suit your needs.
What file formats do you accept for quotations or production?	We accept STEP, IGES, STL, DWG, DXF, PDF, and other common CAD formats.
What is your standard lead time?	Prototype samples: 5–7 business days Small batch: 10–15 business days Mass production: 15–25 business days Express service is available upon request.