600-1500T/M Capacity Automotive Anodizing Line with 8-12μm Oxide Film for Interior Trim
Price:
Customized Price
MOQ:
1set
Delivery Time:
60-90days
Brand:
MEL-AL
Product Description
600-1500T/M Automatic Anodizing Production Line for Automotive Interior Trim
This customized automatic anodizing production line is specially engineered for mass processing of automotive interior aluminum decorative strips. It supports brushed pre-treatment, chemical polishing, dual coloring modes (electrolytic coloring & dye staining) and medium-temperature sealing, delivering consistent brushed silver, piano black and wood-grain matched finishes. The line strictly controls oxide film thickness at 8-12μm, fully complying with automotive interior decoration standards, stable for long-batch OEM & tier 1 supplier production.
Core Technical Specifications
| Item | Standard Parameter |
|---|---|
| Target Workpiece | Automotive interior aluminum decorative trim |
| Oxide Film Thickness | 8-12μm (stable tolerance ±0.8μm) |
| Pre-treatment Process | Mechanical brushing + chemical polishing |
| Coloring Technology | Electrolytic coloring / Organic dye staining (dual optional) |
| Sealing Process | Medium-temperature nickel salt sealing (55-65℃) |
| Standard Finishes | Brushed silver, piano black, wood grain matching tone |
| Applicable Alloy | 6061 / 6063 automotive aluminum alloy |
| Surface Hardness | 320-420 HV, anti-scratch for interior touch area |
| Salt Spray Resistance | ≥480h without corrosion |
| Production Capacity | Customized 600-1500 tons monthly |
| Control System | Full PLC automatic circulation + real-time bath monitoring |
| Compliance Standard | SAE J1974 automotive decorative anodizing, RoHS, REACH |
Standard Production Process
- Loading aluminum interior trim racks
- Degreasing & ultrasonic cleaning to remove oil stains
- Mechanical brushing to form uniform linear texture
- Chemical polishing for smooth metallic base
- Neutralization & multi-stage pure water rinsing
- Sulfuric acid anodizing to form 8-12μm oxide film
- Two optional coloring sections: electrolytic coloring / dye staining
- Multi-level deionized water cleaning to remove residual pigment
- Medium-temperature nickel salt sealing (core process for interior anti-fading)
- Pure water final rinsing
- Low-temperature hot air drying
- Unloading & finished product inspection
Core Advantages for Automotive Interior Trim Line
- Stable 8-12μm thin film control, no over-thickness fogging on delicate interior strips
- Integrated brushing + chemical polishing pre-treatment unit, one-line finish metallic matte base
- Dual coloring system switches freely between brushed silver & piano black, supports wood grain color matching
- Medium-temperature sealing bath maintains uniform color, no fading under long-term sunlight exposure inside cars
- Low noise automatic gantry transfer, avoids scratch marks on delicate decorative surfaces
- Closed acid circulation & waste acid recovery module, meets global automotive factory environmental audit
- SPC real-time data recording, provides complete batch test reports for automotive PPAP documents
- Modular tank layout, easy to expand capacity without full line reconstruction
Complete Supporting Equipment List
- Automatic gantry handling system
- Pre-treatment tanks: degreasing, brushing, chemical polishing, neutralization
- Main sulfuric anodizing tanks + DC stabilized rectifier
- Electrolytic coloring tank & dye staining tank
- Medium-temperature sealing tanks with constant temperature control
- Multi-stage DI water circulation & filtration system
- Low-temperature drying oven for decorative parts
- Waste acid recovery & wastewater treatment auxiliary unit
- PLC intelligent control cabinet + touch screen operation terminal
- Custom workpiece hanging racks for interior long trim strips
Frequently Asked Questions
Why choose anodizing rather than electrophoretic coating for car interior trim?
Electrocoating fully covers metallic texture, resulting in plastic-looking surfaces. Anodizing reserves natural brushed metal luster, with higher hardness to resist daily finger scratches, matching high-end automotive interior positioning.
Can the line realize wood grain matching anodized tone?
Yes. Our dual coloring system combines electrolytic base tone + trace dye adjustment to reach uniform wood-grain matched finish, widely used in mid-to-high vehicle center console trim.
Is 8-12μm film thickness suitable for all interior aluminum strips?
This thickness is the industry standard for automotive interior decoration: thin enough to keep fine brushed texture, thick enough for scratch & UV resistance inside cabins.
Does medium-temperature sealing cause color difference on piano black parts?
The line equips constant temperature circulation & continuous filtration for sealing tanks, color difference controlled below 0.5% in mass production.
Can the production line pass IATF16949 factory audit?
All process parameters, bath data and product test records can be automatically stored and exported, fully supporting PPAP submission and automotive system audit.
Is the line customizable for small-batch prototype orders?
Yes, we offer semi-automatic compact versions for prototype workshops and full automatic large lines for mass tier 1 manufacturers.
Summary
For automotive interior aluminum decorative trim, customized anodizing production line is the optimal surface treatment solution compared with electroplating or spraying. It delivers delicate brushed metallic texture, stable piano black & wood grain finishes, controlled 8-12μm oxide film and automotive-grade durability. Our modular full automatic anodizing line integrates brushing, polishing, dual coloring and medium-temperature sealing in one set, with environmental auxiliary systems, fully matching mass production demands of auto OEMs and interior part suppliers.
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Company
Guangdong MEI-AL Technology Co., Ltd.
Location
No. 1, Changgang North Road, Changhongling Industrial Park, Shishan Town, Nanhai City, Foshan City
Contact Person
rainbow