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Anodizing Production Line

Semi-Automatic Anodizing Production Line with 2,500 T/M Capacity, Modular Design, and RoHS and REACH Compliance

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Semi-Automatic Anodizing Production Line with 2,500 T/M Capacity, Modular Design, and RoHS and REACH Compliance

Brand Name:	MEI-AL
Model Number:	MEI-AL-EE3
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

Feature:

Intelligent Scheduling

Heating Power:

Natural Gas, LNG

Heating System:

Neutralizing Tank, Etching Tank, Sealing Tank

Alloy Type:

6xxx, 5xxx

Environmental Compliance:

Meets RoHS And REACH Standards

Chemical Cloloring:

Silver,Black,Champagne (as Requirement)

Output:

2500T/month Or More

Type:

Modular

Operation:

Semi-automatic Or Full-Automatic

Tank Material:

PP/ PVC/ Stainless Steel

Highlight:

2500 T/M Capacity Anodizing Production Line

Modular Design Semi-Automatic Anodizing Line

RoHS and REACH Compliance Aluminum Anodizing Line

Product Description

Semi-Automatic Anodizing Line for Household Aluminum Hardware (2,500 T/M)

Overview

This semi-automatic anodizing line is configured for processing aluminum household products, including storage racks, towel rails, bathroom shelves, and organizer components. Designed for an average production output of 2,500 metric tons per month, the line combines guided hoist movement with programmable process parameters.

The system uses Type II sulfuric acid anodizing to form a clear or colored protective oxide layer. Semi-automated operation provides flexibility for handling varied workpiece geometries, rack loading layouts, and batch size adjustments while maintaining continuous chemical tank management.

Technical Specifications

Parameter	Specification / Value
Applicable Workpieces	Aluminum towel racks, storage shelves, bathroom hardware, extruded rails
Operation Mode	Semi-automatic (PLC-monitored hoist with manual rack loading/unloading)
Anodizing Type	Type II Sulfuric Acid Anodizing
Film Thickness	8 µm - 25 µm (adjustable by process dwell time and current density)
Surface Finish	Matte, satin chemical etch, bright polished, dyed finishes (black, gold, bronze, silver)
Process Temperature	Normal Temperature
Current Density	1.2 - 1.8 A/dm²
Production Capacity	2,500 Tons / Month
Sealing Method	Mid-temperature nickel-free sealing or hot water sealing

Anodizing Process Flow

1. Racking & Loading: Workpieces are secured onto titanium jigs to maintain electrical contact.

2. Chemical Pre-treatment:

Degreasing: Removes residual lubricants and surface oils.
Rinsing: Cascade water rinse.
Alkaline Etching / Satin Etch: Creates a uniform matte surface texture on aluminum extrusions.
Desmutting: Neutralizes surface alkaline residues and clears insoluble alloying elements.

3. Anodizing: Direct current electrolysis in a room-temperature sulfuric acid bath to build the oxide layer.

4. Coloring / Dyeing (Optional): Organic dyeing or electrolytic coloring for decorative surface finishes.

5. Sealing: Closes the porous aluminum oxide layer to impede corrosion and lock in pigments.

6. Drying & Unloading: Hot-air drying followed by manual rack unloading and inspection.

Key Features

Controlled Film Thickness: Direct current rectifiers with ramp control and digital timing maintain target oxide layer growth within defined milligram and micron tolerances.

Automated Process Control: Centralized PLC interface monitors hoist movement sequence, bath immersion timing, temperature thresholds, and rectifier outputs.

Batch Color Consistency: Controlled dye bath chemistry, continuous fluid agitation, and automated temperature regulation reduce visual shade variance across production runs.

Temperature & Filtration Control: Industrial chillers and titanium heat exchangers maintain anodizing electrolyte at room-temperature operating levels, supported by continuous particulate filtration.

Flexible Surface Finishing: Multi-tank layout supports switching between bright, satin, clear, and color anodizing cycles based on specific household product designs.

Production Line Configuration

The complete plant layout integrates mechanical, electrical, and fluid handling sub-systems:

Process & Anodizing Tanks: Reinforced steel structure with polypropylene (PP) or PVC linings, fitted with air spargers and cooling coils.
Overhead Hoist Crane System: Semi-automatic track hoist for programmed lifting, transport, and lowering of product racks between process steps.
Rectifier System: High-efficiency IGBT rectifiers equipped with voltage and current regulation.
Chilling & Heat Exchanger System: Water-cooled chiller paired with acid-resistant titanium heat exchangers for bath thermal regulation.
Exhaust & Air Scrubbing System: Push-pull ductwork collecting tank fumes, routed to a wet scrubber unit for neutralization before discharge.
Filtration & Circulation Systems: Magnetic drive filter pumps to maintain bath homogeneity and prevent debris accumulation.
DI Water Unit: Reverse osmosis system delivering low-conductance water for interstage rinsing and sealing tanks.

Frequently Asked Questions

Which aluminum alloys are compatible with this anodizing line?

The line accommodates common extruded and sheet alloys used in household products, such as 6063, 6061, 6005, and 5052 series aluminum.

Why choose a semi-automatic line over a fully automatic system for 2,500 T/M capacity?

Semi-automatic operation allows manual adjustment of rack positioning for complex 3D shapes like towel racks and corner shelves, while maintaining automated control over chemical dwell times and bath parameters.

Why is room temperature anodizing selected for household hardware?

Standard Type II sulfuric acid anodizing operates at room temperature (ambient), which is effective for building decorative and corrosion-resistant oxide films (8-25 µm) on consumer hardware without excessive energy consumption required for low-temperature hard anodizing.

How is temperature stability maintained in the main anodizing tank?

Titanium heat exchangers connected to a dedicated chiller unit continuously circulate the electrolyte, dissipating heat generated during the electrolytic reaction.

How are acid fumes managed during operation?

Lateral exhaust hoods mounted on the tank rims pull acid mist into a central ducting system leading to a vertical packed-bed chemical scrubber.

Get a Customized Aluminum Anodizing Line Layout and Process Solution

Line layouts, tank dimensions, rectifier capacities, and waste treatment integrations can be tailored to match specific factory floor dimensions, power supply specifications, and target product geometries. Contact our engineering team with your daily throughput targets and product engineering drawings to receive a technical proposal and equipment footprint assessment.

Tags:

Anodizing Production Line

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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

Semi-Automatic Anodizing Production Line with 2,500 T/M Capacity, Modular Design, and RoHS and REACH Compliance

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