products details

Home > Products >

6000T/Per Years Capacity Micro-Arc Oxidation Line for EV Battery Trays with Electrical Insulation and Coolant Resistance

All Category

Anodizing Wastewater Treatment

Electrophoresis Production Line

Aluminium Extrusion Handling System

Aluminum Profile Wrapping Machine

Mrs. rainbow

rainbow151018@163.com

+8613232661277

+8613232661277

Contact Now

6000T/Per Years Capacity Micro-Arc Oxidation Line for EV Battery Trays with Electrical Insulation and Coolant Resistance

Brand Name:	MEI-AL
Model Number:	MEI-AL-MC0921
MOQ:	I set
Price:	Customized Price
Packaging Details:	Standard Packaging
Payment Terms:	L/C,T/T

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

Foshan, China

Document:

PDF Gallery_20240719_102320...20.pdf

Environmental Compliance:

Meets RoHS And REACH Standards

Voltage:

Customized

Color:

Customizable

Video Inspection:

Provided

Applicable Industries:

Manufacturing Plant

Chemical Cloloring:

Silver,Black,Champagne

Dimensions:

Customizable Based On Production Scale

Heating Power:

Natural Gas, LPG

Chiller:

500,000 Kilocalorie

Alloy Type:

6063

Running Type:

Full-automatic

Product Type:

Solution

Capicity:

6000T/MONTH

Highlight:

6000T/M Capacity Micro-Arc Oxidation Line

Ceramic Coating MAO Production Line

Electrical Insulation PEO Coating Line

Product Description

6000T/Per Years Micro-Arc Oxidation Line for EV Battery Trays

Ceramic Coating for Electrical Insulation, Coolant Resistance, and Lightweight Protection

This micro-arc oxidation (MAO) production line is designed for surface treatment of aluminum alloy battery trays used in new energy vehicles (NEVs). The line applies a high-voltage plasma discharge process in an alkaline electrolyte, forming an in-situ ceramic oxide layer — primarily α-Al₂O₃ — directly on the aluminum substrate. Unlike conventional anodizing, the MAO coating is fully integrated with the base metal, providing electrical insulation, corrosion resistance against coolant fluids, and thermal stability under battery operating conditions. The line delivers a monthly processing capacity of 6,000 tons and supports aluminum alloys including 6061, 6063, and 3003. The coating thickness is adjustable within 10–60 μm, with hardness reaching HV 500–1200 depending on process parameters.

Technical Specifications

Parameter	Specification
Applicable Workpieces	Aluminum alloy battery trays, cooling plates, structural housings
Applicable Alloys	6061, 6063, 3003
Operation Mode	Automatic with manual override
Oxidation Type	Micro-Arc Oxidation (MAO / PEO)
Coating Thickness	10–60 μm (adjustable)
Coating Hardness	HV 500–1200
Dielectric Breakdown Voltage	≥ 500 V (typical for 20 μm coating)
Corrosion Resistance	Neutral salt spray ≥ 720 h
Thermal Stability	Withstands short-term exposure ≥ 800°C
Electrolyte System	Weak alkaline silicate-based
Power Supply	High-voltage pulsed DC, 0–750 V adjustable
Production Capacity	6,000 T/M
Max Workpiece Length	Customized
Sealing	Not applicable (inherent ceramic layer)

Note: Coating hardness and breakdown voltage vary with alloy grade, coating thickness, and electrical parameters. Values above represent typical ranges under standard production conditions. Final specifications are confirmed based on workpiece geometry and functional requirements.

Process Flow

Degreasing & Pre-cleaning — Remove machining oils and surface contaminants from the aluminum tray.
Rinsing — Two-stage cascade rinse to eliminate residual alkaline cleaner.
Micro-Arc Oxidation — Immerse workpiece in alkaline electrolyte; apply high-voltage pulsed DC to generate plasma micro-discharges and grow the ceramic oxide layer in situ.
Rinsing — Overflow rinse to remove electrolyte carryover.
Drying — Hot air drying or oven curing.
Inspection — Thickness gauge, breakdown voltage tester, and visual inspection.

Key Features of the MAO Line for Battery Trays

Electrical Insulation for Cell-to-Tray Isolation — The ceramic oxide layer provides insulation resistance above 10¹⁰ Ω·cm, reducing the risk of electrical leakage between battery modules and the tray structure.
Coolant Fluid Compatibility — The MAO coating resists degradation from glycol-based coolant fluids commonly used in battery thermal management systems, maintaining coating integrity over extended service life.
Lightweight Surface Engineering — The treatment preserves the lightweight advantage of aluminum while significantly improving surface durability and functional performance.
Adjustable Coating Thickness — Process parameters can be tuned to achieve 10–60 μm, balancing insulation requirements against dimensional tolerance for precision assembly.
Thick-Wall and Complex Geometry Support — The line accommodates large-format trays and trays with deep cavities, integrating with automated loading and transfer systems.

Production Line Configuration

Module	Function
High-Voltage Pulsed Power Supply	0–750 V adjustable output with multi-stage waveform control
MAO Processing Tanks	PP-lined or stainless steel tanks with electrolyte circulation and temperature control
Cooling System	Industrial chiller with heat exchanger for electrolyte temperature regulation
Electrolyte Management	Automatic dosing, filtration, and conductivity monitoring
Rinsing Stations	Multi-stage cascade rinsing with DI water
Drying Oven	Hot air circulation, temperature-controlled
Automated Transfer	Crane or conveyor system for tray handling
Exhaust System	Acid/alkali fume collection and treatment
Control System	PLC-based with process parameter storage and remote diagnostics

Frequently Asked Questions

Q1: What is the primary function of MAO coating on an EV battery tray?

A1: The MAO coating serves three core functions on a battery tray: electrical insulation to isolate the battery modules from the aluminum tray structure, corrosion protection against coolant fluids and environmental exposure, and wear resistance for handling and assembly operations. It also contributes to thermal management by providing a ceramic surface with high-temperature stability.

Q2: How does MAO compare to hard anodizing for battery tray applications?

A2: Hard anodizing (Type III) typically produces coatings of HV 300–500 with thickness of 20–80 μm. MAO coatings achieve higher hardness (HV 500–1200) and are ceramic rather than amorphous in structure. The MAO process also uses an alkaline electrolyte rather than sulfuric acid, which simplifies waste treatment and avoids acid-handling concerns. For battery trays requiring combined insulation and coolant resistance, MAO is often specified over hard anodizing.

Q3: What coating thickness is recommended for battery trays?

A3: For most battery tray applications, a coating thickness of 20–40 μm provides an effective balance between electrical insulation (breakdown voltage ≥ 500 V) and dimensional tolerance. Thinner coatings (10–20 μm) are used where tight assembly tolerances are critical; thicker coatings (40–60 μm) are selected for applications requiring extended corrosion protection.

Q4: Can the line process different aluminum alloy grades?

A4: Yes. The MAO process is compatible with 6061, 6063, 3003, and other aluminum alloys commonly used in battery tray manufacturing. Electrolyte composition and electrical parameters are adjusted based on alloy grade and required coating properties.

Q5: What is the lead time for line delivery and installation?

A5: Standard lead time is approximately 5–6 months from order confirmation, followed by 2–3 months for installation and commissioning. Final timeline depends on line configuration, site conditions, and customization requirements.

Ratings & Review

Overall Rating

5.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

100%

4 stars

3 stars

2 stars

1 stars

All Reviews

B*i

Nigeria Sep 30.2026

Helpful (1)

The PP process tank we bought has excellent anti-corrosion performance, solid welding and acid & alkali resistance. No leakage after long time operation in our workshop, reliable quality.

K*i

Ghana Sep 29.2026

Helpful (1)

Aluminum parts processed by MEI-AL equipment have stable and qualified anodizing film thickness, uniform surface color and good salt spray resistance. Our customers are satisfied.

R*h

Malaysia Sep 10.2026

Helpful (1)

The tank temperature control system has high precision with small temperature fluctuation. It stabilizes the anodizing process, reduces rejects and improves production efficiency.

Tags:

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

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

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

6000T/Per Years Capacity Micro-Arc Oxidation Line for EV Battery Trays with Electrical Insulation and Coolant Resistance

6000T/M Capacity Micro-Arc Oxidation Line

Ceramic Coating MAO Production Line

Electrical Insulation PEO Coating Line

Overall Rating

Rating Snapshot

All Reviews

Anodizing Production Line

Horizontal Anodizing Line

Aluminum Anodizing Line