Heavy Duty DC Power Supply (24V 2000A) for Precision Aluminum Anodizing

Designed specifically for the demanding voltage curve of Type II anodizing, this unit delivers 24 volts output at a full 2000 amperes, ensuring stable oxide layer growth without the risk of localized burning. The current density control allows for precise regulation between 3 and 12 amps per square foot, matching the critical requirements for dye tank coloring and subsequent seal bath compatibility. This unit functions as a dedicated anodizing rectifier, converting AC mains into a pure, low-ripple DC output that prevents uneven film formation and rejects.
Part 1 Key Features & Engineering Highlights
Manufactured directly by a qualified industrial high frequency rectifier factory, this equipment utilizes high-frequency IGBT switching technology to achieve efficiency gains of over 15% compared to traditional thyristor-based systems. The compact enclosure (740*505*425mm) allows for close integration with existing tank lines, minimizing cable losses. A sealed control panel protects against the corrosive sulfuric acid mist common in plating environments. The process computer features a lockable recipe memory, allowing operators to store voltage ramp times, dwell periods, and current density targets for different aluminum alloys.
Part 2 Technical Specifications Table

Part 3 Advanced Built-in Protection Systems
Solid-state protection circuits are integrated directly into the IGBT driver logic. The system monitors for short circuits, over temperature, and phase loss on the input line. In the event of a bath chemical imbalance causing a current spike, the fast-acting IGBT module shuts down within milliseconds, protecting both the workpiece and the internal components. An active soft-start function (0.5 to 5 seconds adjustable) prevents the sudden current inrush that can damage thin aluminum parts or delicate sealing membranes. The unit also includes a dedicated over voltage clamp to prevent transient damage.
Part 4 Target Industrial Applications
This rectifier is optimized for hard coat anodizing and standard sulfuric acid processes. It is suitable for aerospace aluminum treatment where MIL-A-8625 compliance requires precise voltage control and consistent film density. For decorative shops dealing with aluminum motorcycle parts, firearm components, or architectural extrusions, the adjustable current allows operators to maintain a uniform oxide layer across complex geometries. It also supports the initial etch step and final seal stage on the same line, acting as a truly universal power source for the entire tank room.
Part 5 Customization and Tailored Engineering Services
As an IGBT rectifier manufacturer focused on client needs, we offer full customization of the power module. We can engineer units ranging from 1V to 1000V DC and 1A to 100,000A DC. All units accept standard AC input and provide high-stability DC output. For advanced process control, we integrate a Process Timer with multiple stages, a Programmable Multi-Stage Profile Control for ramping and holding, and an Ampere-Minute Integrator for calculating total charge. We also offer Automatic Reverse Polarity for specific cleaning cycles, a Soft-Start module to prevent thermal shock on cold baths, and industrial interfaces including RS485 Modbus RTU, Ethernet TCP/IP, and 4-20mA analog control. For pulse anodizing requirements, we offer an adjustable Pulse Function ranging from 1Hz to 3000Hz to modulate the oxide layer density. Contact our engineering team to validate your specific custom current voltage rectifier requirements before placing an order. Please request our detailed heavy-duty DC power supply price list for your exact voltage and amperage configuration.