Heavy-Duty Anodizing Rectifier (15V 1500A) for Industrial Surface Treatment

Executive Summary
This 15V 1500A DC power supply is specifically engineered for precision anodizing applications, directly addressing the industry standard voltage ceiling of 16-17V for conventional sulfuric acid anodizing. Unlike generic units that risk “cooking” the workpiece at 30V, this rectifier delivers the exact current density required for consistent oxide layer growth—allowing up to 6 amps per square foot as verified by the 720 calculations. Designed to replace outdated transformer-based units, this system provides the efficiency and control demanded by a modern industrial high frequency rectifier factory for aluminum, titanium, and stainless steel surface preparation.
Part 1 Key Features & Engineering Highlights
High-Frequency IGBT Topology: Utilizing advanced IGBT switching, this unit operates at efficiencies exceeding 90%. This translates directly into lower operational costs and reduced heat generation in your facility compared to traditional SCR-based units. The 15V output is finely regulated to maintain the exact voltage window required for bright architectural anodizing without burning the workpiece.
Stainless Steel Frame & Bus Bars: Built for harsh electroplating environments. The chassis and connecting bus bars are constructed from stainless steel to resist corrosion from sulfuric acid and electrolyte fumes, ensuring a long service life that significantly lowers the total cost of ownership compared to the initial heavy-duty DC power supply price.
Precision Dual-Display Control: Front panel interface provides simultaneous readout of voltage and current. The constant current (CC) mode is prioritized for anodizing, allowing operators to set a precise current density (e.g., 6A/sqft) that automatically adjusts as the oxide layer forms, providing a consistent finish from load to load.
Part 2 Technical Specifications Table
| Parameter | Specification |
| :— | :— |
| Model Output | 15V DC / 1500A DC |
| Input Voltage | 3-Phase, 220V / 380V / 415V AC (50/60 Hz) |
| Output Type | Constant Current (CC) / Constant Voltage (CV) |
| Cooling Method | Forced Air Cooling (Industrial Fans) |
| Protection Class | IP21 (Indoor Installation) |
| Ripple & Noise | 92% at Full Load |
| Control Interface | Digital Potentiometer (Standard) |
Part 3 Advanced Built-in Protection Systems
This unit is armored against common factory failures. Automatic electronic overload protection prevents damage if the anodizing rack shorts out during loading. The system will fold back current to a safe level, not trip a fuse. Real-time thermal monitoring backs off the output power if internal components approach critical temperature, guaranteeing continuous operation during long anodizing cycles. An input phase-loss relay immediately shuts down the unit to prevent unsafe motor-run conditions.
Part 4 Target Industrial Applications
This 15V 1500A unit is the ideal choice for Type II (Sulfuric Acid) anodizing lines for architectural profile finishing and general aluminum parts. It is also perfectly suited for bright dip and electropolishing processes where a low-voltage, high-current source is mandatory. The high stability output makes it a preferred choice for any facility acting as an IGBT rectifier manufacturer for decorative or protective anodizing.
Part 5 Customization and Tailored Engineering Services
As a dedicated custom current voltage rectifier supplier, we can modify this platform to meet your exact line specifications. Standard customization options available:
Voltage & Current: Adjustable from 1V-1000V and 1A-100,000A (DC Output Only).
Process Control Integration:
Multi-Stage Profile Control for ramp-up, anodizing, and sealing sequences.
Ampere-Minute Integrator to calculate exact oxide thickness.
Automatic Reverse Polarity for alternated anodizing cycles.
Soft-Start to prevent shocking the workpiece.
Remote Communication:
RS485 Modbus RTU for PLC integration.
Ethernet for SCADA or MES data logging.
Analog 4-20mA signals to interface with external controllers.
Pulse Functions: Square-wave pulse output adjustable from 1 Hz to 3000 Hz for special hard-anodizing processes or advanced surface engineering.