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900 Tons/Month PLC-Controlled Automatic Micro-Arc Oxidation Production Line for Corrosion Resistant Ceramic Layer

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900 Tons/Month PLC-Controlled Automatic Micro-Arc Oxidation Production Line for Corrosion Resistant Ceramic Layer

Brand Name:	MEI-AL
Model Number:	MEI-AL-L20261002
MOQ:	I set
Price:	Customized Price
Packaging Details:	Standard Packaging
Payment Terms:	L/C,T/T

Detail Information

Product Description

Detail Information

Place of Origin:

Foshan, China

Document:

PDF Gallery_20240719_102320...20.pdf

Scope:

Aluminium Alloy Profiles

Pre-Treatmentprocess:

Degreasing, Etching, Desmutting

Guarantee:

1 Year

Chiller:

500,000 Kilocalorie

Treatment Type:

Anodizing Line

Key Selling Points:

Easy To Operate

Heating Power:

Natural Gas, LNG

Mode Type:

Semi Automatic

Specification:

Customized

The Mode:

Vertical Or Horizontal Anodizing

Output:

900T/month Or More

Control System:

PLC

Highlight:

900 Tons/Month Capacity Micro-Arc Oxidation Production Line

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Product Description

900 Tons/Month Turnkey Micro-Arc Oxidation Production Line for New Energy Battery Trays

This turnkey micro-arc oxidation (MAO) production line is designed for manufacturers of new energy vehicle battery trays. The line covers the complete process chain from pre-treatment through micro-arc oxidation to post-treatment within a PLC-controlled automated system.

Micro-arc oxidation is an electrochemical surface treatment process that generates a ceramic oxide layer on the surface of aluminum, magnesium, and titanium alloys through micro-zone arc discharge in an electrolyte. The process uses a weak alkaline electrolyte without heavy metals, and the resulting ceramic layer is metallurgically bonded to the substrate, providing corrosion resistance, electrical insulation, and wear resistance for battery tray applications.

Technical Specifications

Parameter	Specification
Applicable Workpieces	Aluminum and magnesium alloy battery trays, battery pack housings, structural components
Operation Mode	PLC-controlled automatic line with recipe management
Anodizing Type	Micro-Arc Oxidation (MAO / Plasma Electrolytic Oxidation)
Film Thickness	50-100 μm (configurable based on component requirements)
Surface Finish	Matte ceramic layer, uniform grey or dark grey appearance
Process Temperature	Electrolyte temperature controlled within 20-40°C
Current Density	1.5-18 A/dm² (adjustable by alloy and part geometry)
Production Capacity	900 tons/month (dependent on surface area per ton and cycle time)
Sealing Method	Post-treatment sealing / impregnation (configurable)

Note: Process parameters are adjustable within these ranges based on specific alloy composition, workpiece geometry, and target coating properties. Actual throughput depends on part size, racking density, and required film thickness. Detailed specifications are available upon request.

Reference Performance Data

Property	Typical Range
Microhardness	400-3,000 HV (depending on substrate and process parameters)
Salt Spray Resistance	≥500 hours for 50 μm coating (battery tray applications)
Dielectric Resistance	≥100 MΩ
Porosity	≤5% (with optimized process control)
Coating Bonding	Metallurgical bonding with substrate

Sources: Published MAO process research and industry technical bulletins.

Micro-Arc Oxidation Process Flow

The production line follows a sequential multi-stage process:

Loading
Degreasing
Rinsing
Alkaline Cleaning
Rinsing
Acid Neutralization
Rinsing
Micro-Arc Oxidation
Multi-stage Rinsing
Post-treatment (Sealing/Impregnation)
Rinsing
Drying
Unloading

Each stage is controlled by the central PLC system, with automated transfer between tanks. Rinse stages incorporate cascading counter-flow to reduce water consumption. The micro-arc oxidation stage uses a dedicated pulse power supply with adjustable frequency, duty cycle, and voltage waveform. Electrolyte temperature is maintained within the process range by a circulation and cooling system.

Key Features

Controlled Film Thickness: The MAO power supply and PLC system regulate voltage, current density, and oxidation time to achieve target film thickness from 5 μm to 100 μm.
Automated Process Control: Central PLC system manages hoist movement schedules, immersion times, power supply parameters, and electrolyte circulation with real-time data logging.
Batch Consistency: Automated electrolyte circulation, temperature control, and dosing systems maintain stable bath composition for consistent results.
Temperature & Filtration Control: Circulation pump system, plate heat exchanger or chiller, and filtration units maintain electrolyte temperature within 20-40°C.
Flexible Surface Finishing: Accommodates different pre-treatment and post-treatment options based on specific requirements.
Environmental Compliance: Uses weak alkaline electrolyte without heavy metals, equipped with wastewater treatment and exhaust gas collection systems.

Production Line Configuration

A typical line layout includes the following major equipment:

Pre-treatment System: Degreasing tank, alkaline cleaning tank, acid neutralization tank, multi-stage rinsing tanks
MAO Power Supply: Dedicated high-voltage pulse power supply with adjustable parameters
Oxidation Tank System: Corrosion-resistant tank with cathode system and uniform electric field design
Electrolyte Circulation & Cooling System: Circulation pumps, heat exchanger or chiller, filtration units
Automated Transfer System: Gantry crane or rail-mounted hoist system
PLC Control Cabinet: Central control with touchscreen HMI, recipe management, and data logging
Post-treatment System: Sealing/impregnation equipment, pure water rinsing, and drying system
Exhaust & Scrubber System: Fume hoods with exhaust gas treatment
Wastewater Treatment System: pH adjustment, sedimentation, and filtration for discharge compliance

The line footprint and tank dimensions are customized based on maximum workpiece size and required throughput.

Frequently Asked Questions

Q1: What is the difference between micro-arc oxidation and conventional anodizing?

Micro-arc oxidation operates at higher voltages than conventional anodizing, generating micro-zone arc discharge on the metal surface. This produces a ceramic oxide layer that is metallurgically bonded to the substrate, with higher hardness (400-3,000 HV compared to 200-400 HV for conventional anodizing) and improved corrosion resistance. The process uses a weak alkaline electrolyte without heavy metals.

Q2: What film thickness is suitable for battery trays?

For battery tray applications, typical film thickness ranges from 50 μm to 100 μm to provide enhanced corrosion protection and electrical insulation. Thinner coatings (5-20 μm) may be suitable for precision components where dimensional tolerance is a concern.

Q3: What is the typical lead time for line delivery and installation?

Lead time and installation schedule are confirmed based on project scope. Equipment manufacturing, shipment, installation, and commissioning proceed according to the project plan after design confirmation. (Actual timeline is subject to project scope confirmation.)

Q4: How is the 900 tons/month capacity calculated?

Capacity is calculated as: Monthly throughput = (Surface area per rack × Racks per hour × Operating hours) ÷ Average surface area per ton. Actual throughput depends on part geometry, racking density, and required film thickness.

Q5: What alloys are supported?

The line supports aluminum alloys (including 6061, 6063, and die-cast grades) and magnesium alloys (including AZ91D and AM60) commonly used in battery tray manufacturing.

Q6: Does the line include environmental compliance equipment?

Yes. The line is equipped with wastewater treatment and exhaust gas collection systems. Micro-arc oxidation uses a weak alkaline electrolyte without heavy metals, and the specific treatment configuration is customized based on local environmental regulations.

Customized Micro-Arc Oxidation Line Solution

Every production scenario differs in workpiece geometry, alloy mix, and throughput target. We provide customized line layouts and process solutions based on your specific requirements.

To receive a tailored proposal, please share:

Workpiece drawings or samples (material, dimensions, surface area)
Target film thickness and performance requirements
Required monthly throughput (tons or pieces)
Available factory space and utilities (power, water, drainage)

Our engineering team will respond with a proposed line layout, equipment list, and estimated process cycle time.

Tags:

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products details

Anodizing Production Line

Automated Anodizing Line

Anodizing Line Equipment

Anodizing Line Accessories

Anodizing Wastewater Treatment

Electrophoresis Production Line

Aluminum Extrusion Press

Powder Coating Line

Aluminium Extrusion Handling System

Casting Production Line

Aluminum Profile Wrapping Machine

900 Tons/Month PLC-Controlled Automatic Micro-Arc Oxidation Production Line for Corrosion Resistant Ceramic Layer

900 Tons/Month Capacity Micro-Arc Oxidation Production Line

PLC-Controlled Automatic MAO Production Line

Corrosion Resistant Ceramic Layer Plasma Electrolytic Oxidation Line

Anodizing Production Line

Horizontal Anodizing Line

Aluminum Anodizing Line