Type II & Type III Aluminum Anodizing Services
One-stop CNC machining integrated anodizing with custom colors for aerospace, medical and consumer electronic aluminum components.
ISO 14001:2015 ISO 9001:2015 IATF 16949:2016
ISO AS9100 RoHS Compliant Anodizing
CustomParts-MFG delivers full-spectrum aluminum anodizing integrated with in-house precision CNC machining, certified to ISO9001:2015, AS9100, RoHS & REACH standards. We supply Type II sulfuric anodizing, MIL-spec Type III hardcoat anodizing, custom color dye anodizing and chromate conversion chemical film for aluminum, titanium and magnesium components across aerospace, medical, electronics, automotive and optical industries. Controlled electrochemical oxidation forms dense natural oxide coating to upgrade parts’ corrosion resistance, wear performance and insulation, with full in-house pre-treatment, anodizing, sealing and post-PTFE impregnation to simplify clients’ whole supply chain.
Our anodized precision parts from this manufacturer are outstanding. The finish is exceptionally uniform and durable, perfectly meeting our specs. Quality and consistency are always reliable.
Four Core Anodizing Process Types
- Type II Sulfuric Acid Anodizing: General-purpose thin-film finish with clear or customizable dyed colors; excellent anti-corrosion for consumer hardware, automotive casings and regular industrial aluminum parts.
- Type III Hardcoat Anodizing (MIL-A-8625): Extra thick dense oxide layer featuring outstanding abrasion resistance and electrical insulation, ideal for high-load aerospace, defense and heavy mechanical moving components.
- Custom Color Anodizing: Stable organic dye or electrolytic coloring including black, bronze and customized shades for brand differentiation and UV protection.
- Chromate Conversion (Chemical Film): Ultra-thin lightweight conductive coating for aluminum, used as paint base layer and corrosion barrier for aviation & electronic fittings.
Applicable Base Materials & Pre-treatment Rules
- Processable Raw Materials: 6061/7075/2024 series aluminum alloy, aerospace-grade titanium, pre-treated magnesium alloy.
- Pre-anodizing Prep: Precision polishing, bead blasting, brushing or chemical etching per customer’s surface requirement; thorough degreasing & deoxidation to guarantee uniform oxide layer adhesion.
Strict QA & Global Standard Compliance
All batches follow MIL-A-8625, AMS 2469 and ASTM B580 specifications with full-process parameter monitoring on bath concentration, voltage and temperature:
- Standard Lab Testing: ASTM B117 neutral salt spray (up to 1000hrs for hardcoat), eddy-current coating thickness testing, Taber abrasion, cross-hatch adhesion and dye spot sealing inspection.
- Issuable Documents: Complete material cert, process record and official inspection report attached with every delivery.
Wide-range Industrial Application Scenarios
- Precision Mechanical Parts: Custom shafts, equipment housings and enclosed component shells.
- Thermal Management Hardware: Aluminum heat sinks for electronics and power modules.
- Optical & Instrument Parts: Precision optical mounts, control panel fittings.
- Medical Devices: FDA compliant surgical tools and implant auxiliary aluminum components.
- Robotics & Automation: Robotic structural frames and linear motion guide accessories.
Core Advantages of SinoCMI’s In-house Anodizing Service
- Uniform Coating Consistency: Even oxide thickness on intricate complex geometry without edge overbuild or thin-spot defects.
- Flexible Production Mode: Zero MOQ limitation, support small prototype trial as well as large-volume mass manufacturing with fast lead time.
- Early Free DFM Engineering Support: Optimize part edge radius, air vent layout and material selection at design stage to avoid anodizing defects and cut production cost.
- Eco-Friendly Production: Closed-loop wastewater recycling system and compliant chemical waste disposal per environmental regulations.
Full One-stop Integrated Production Flow
- Precision CNC machining of raw aluminum blanks
- Pre-anodizing surface finishing: polish / blast / chemical cleaning & etching
- Parameter-controlled anodizing production
- Post-sealing, drying and optional PTFE impregnation treatment
- Final multi-item dimensional & performance inspection before packaging
Request Free Custom Anodizing Quotation
Upload your CAD drawings, alloy grade and functional specs via quote page, our surface engineering team prepares tailored anodizing plan and detailed quotation within 24 working hours.
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FAQs About Anodizing
What is anodizing and its core function for precision aluminum parts?
expand_less expand_moreA: Electrochemical oxidation forming compact protective oxide film to boost corrosion/wear resistance, insulation and customizable colored appearance for industrial precision components.
What kinds of anodizing options can you provide?
expand_less expand_moreA: Standard Type II sulfuric color/clear anodizing, MIL spec Type III hardcoat and chromate conversion coating for different functional & cosmetic needs.
How to guarantee consistent batch-to-batch color matching?
expand_less expand_moreA: Precise bath parameter control + digital spectrophotometer color calibration and unified dye absorption process with pre-production sample confirmation.
What is standard production turnaround period?
expand_less expand_moreA: Regular order cycle 5~10 working days after drawing confirmation, expedited rush service available for urgent prototype projects.
Can you provide DFM design optimization before production?
expand_less expand_moreA: Free engineering DFM feedback on edge rounding, vent hole design and material selection to optimize final anodizing quality.
What pre-anodizing surface textures are available?
expand_less expand_moreA: Machined raw finish, brushed, bead blasted and high-gloss polished base surface options prior to anodizing.
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