Chrome Plating Power Source 18V 2000A GAOHUI IGBT Rectifier Hard Chrome Rectifier

EXECUTIVE SUMMARY
This GAOHUI 18V 2000A DC power supply is an industrial-grade IGBT-based rectifier engineered specifically for hard chrome plating and decorative chrome finishing operations. The unit converts 3-phase 380V AC input into a precisely regulated 0-18V DC output with a continuous adjustable current range from 0 to 2000A. Designed for 24/7 heavy industrial duty cycles, it delivers microsecond-level response speed for superior coating uniformity and energy savings of 15-20% compared to traditional SCR thyristor units. Ideal for demanding applications requiring high-precision plating thickness control on automotive parts finishing and industrial tooling.
PART 1 KEY FEATURES AND ENGINEERING HIGHLIGHTS
High Frequency IGBT Technology: The heart of this system is a state-of-the-art IGBT inverter module operating at 20-50kHz, dramatically reducing transformer size and copper losses. The result is a physically compact, lightweight unit (approximately 40% smaller than equivalent SCR units) that does not sacrifice power density. This directly translates to a competitive industrial high frequency rectifier factory solution without the flooring footprint penalty.
Precision Constant Current/Constant Voltage Control: Digital dual-loop feedback delivers constant current accuracy of ±0.5% and constant voltage accuracy of ±0.5% across the full load range. The system’s microsecond response time ensures immediate compensation for load and line transients, critical for consistent chrome layer thickness in high-speed chrome plating lines.
Built-in Communication Interface: The factory standard interface supports RS485 Modbus RTU protocol, allowing integration with PLC systems or supervisory control software. Ethernet TCP/IP and 4-20mA analog control interfaces are available as drop-in modules for centralized plant automation. This is a key differentiator for any IGBT rectifier manufacturer aiming at Industry 4.0 compliance.
Energy Saving Design with High Power Factor: Utilizing advanced active power factor correction (PFC), the unit achieves a power factor >0.95 and total harmonic distortion (THDi) below 8%. This results in actual electricity cost reduction of 15-25% compared to legacy rectifier designs, directly impacting the total cost of ownership.
PART 2 TECHNICAL SPECIFICATIONS

PART 3 ADVANCED BUILT-IN PROTECTION SYSTEMS
The unit features a multi-layer safety architecture designed for unattended industrial operation. The protection suite includes digital overvoltage protection (OVP), adjustable overcurrent protection (OCP) with fast trip, overtemperature shutdown (OTS) via internal NTC sensors, reverse polarity protection, and phase loss detection on the AC input. All trip conditions are logged in non-volatile memory for diagnosis. An integrated soft-start function ramps output gradually, eliminating inrush current stress to both the rectifier and the connected plating load.
PART 4 TARGET INDUSTRIAL APPLICATIONS
This 18V 2000A unit is purpose-built for decorative chrome and hard chrome plating baths where consistent, ripple-free current is essential for deposit brightness and corrosion resistance. Core applications include automotive parts finishing such as bumpers, wheels, and grilles; industrial tooling restoration; printing cylinder chrome plating; and functional chrome coatings for hydraulic components. Its precise low-voltage/high-current output is also applicable to anodizing and electroforming processes requiring a heavy-duty DC power supply price that justifies long-term reliability.
PART 5 CUSTOMIZATION AND TAILORED ENGINEERING SERVICES
GAOHUI offers extensive factory-level customization beyond standard specifications. Our engineering team can tailor the unit across a full voltage range of 1V to 1000V and a current range of 1A to 100,000A, all with AC input to DC output conversion. Customized add-on modules available include:
Process Timer for automatic cycle termination with end-of-cycle alarm.
Multi-Stage Profile Control allowing programmable current/voltage ramps and step changes (up to 10 segments) for complex plating sequences.
Ampere-Minute Integrator with real-time total charge tracking and relay output for precise material deposition control.
Automatic Reverse Polarity (ARP) function with adjustable forward/reverse time and current ratio, typically used for pulse-continuous plating modes.
Soft-Start Module providing adjustable ramp-up time from 1 second to 10 minutes.
Pulse Functions with adjustable frequency from 1Hz to 3000Hz and duty cycle from 10% to 90% for high-density, fine-grain coatings.
Advanced Communication Interfaces: Full Profinet or EtherCAT integration for custom automation.
Our engineering capability as a leading custom current voltage rectifier provider means we can modify the chassis (open-rack, wall-mount, caster-base), adjust cooling (water-cooled sealed), or integrate auxiliary power supplies (24V DC) without degrading the core performance. All customizations are covered by the standard 2-year warranty. Contact our team with your specific voltage/current envelope and process requirement to receive a tailored quotation.