GAOHUI Industrial IGBT Rectifier (18V 2000A Hard Chrome Plating Power Supply)

Executive Summary
This is not a standard commodity rectifier. The GAOHUI 18V 2000A unit is a purpose-built industrial high frequency rectifier factory deliverable, engineered specifically for the brutal demands of hard chrome and decorative chrome plating lines. We have stripped away the inefficiencies of old SCR technology. You get a 3-phase 380V AC to 18V DC conversion system that is 8–12% more efficient than the competition, delivering a pure DC waveform completely free of voltage spikes that compromise chrome adhesion. The output is continuously adjustable from 0–2000A with digital accuracy to 1A, providing the exacting control required for automotive parts finishing and high-speed chrome plating cycles.
Part 1: Key Features & Engineering Highlights
This unit solves the two primary problems plaguing chrome platers: energy waste and poor deposit quality. We start with a true transformer-isolated IGBT topology. This eliminates the line harmonics that frustrate plant electricians and the ripple that causes “burned” deposits on complex geometries.
Control is precise. A 3.5-inch digital display updates current accuracy down to a single amp and voltage down to 0.01V. Operators can set the value and lock the interface to prevent drift. The power factor is corrected above 0.92, meaning your facility saves real dollars on reactive power penalties.
Mechanically, this machine is a compliment to your shop floor. The enclosure is 40% smaller and 35% lighter than a comparable SCR unit. It mounts on casters for line mobility. The connection is simple: 3-phase input lugs and DC output bus bars. No complex water cooling loops required for most operations—forced-air thermal management handles continuous duty cycles up to 60°C ambient.
Part 2: Technical Specifications Table

Part 3: Advanced Built-in Protection Systems
A chrome plating line failure is expensive. This rectifier anticipates failure modes standard units ignore. It includes integrated phase-loss detection on the input line, preventing single-phasing damage to the main IGBT bank. A direct thermal sensor on the heatsink triggers an automatic current foldback if temperature exceeds safe limits—no hard shutdown surprises. Output short circuit protection is hardware-level, responding in 20 microseconds. Additionally, a dedicated overvoltage clamp circuit protects both the rectifier and your load against inductive kickback from bus bar disconnects. Most manufacturers treat these as optional add-on cards; GAOHUI makes them standard.
Part 4: Target Industrial Applications
This unit is not a general-purpose lab supply. It is designed for high-current, mission-critical electroplating. Primary uses include hard chrome plating of hydraulic rods, cylinder bores, and large dies. It also excels in decorative chrome lines where industrial high frequency rectifier factory consistency determines part rejection rates. The low-ripple output is ideal for bright nickel undercoats and final chrome strikes. For automotive parts finishing, the adjustable ramp control eliminates the current surge that causes hydrogen embrittlement on high-strength steel components.
Part 5: Customization and Tailored Engineering Services
Your line is unique, so your power supply should not be generic. We build to order. As a direct IGBT rectifier manufacturer, we can modify any parameter. Voltage can be specified from 1V to 1000V. Current from 1A to 100,000A. Input is always AC three-phase single phase; output is pure DC.
We integrate specific process modules on request. A Process Timer with end-of-cycle horn allows unattended runs. A Multi-Stage Profile Control stores up to 16 steps with independent ramp times, current densities, and durations, perfect for decorative chrome basecoat-strike cycles. An Ampere-Minute Integrator tracks total charge passed, essential for deposit thickness control. Automatic Reverse Polarity (ARP) switches polarity at 0.1–99 second intervals for leveling and anode cleaning.
Standard communication interfaces include RS485 Modbus RTU, Ethernet TCP/IP, and analog 4-20mA signals, allowing full SCADA integration. For advanced finishing, we add Pulse Functions adjustable from 1Hz to 3000Hz with variable duty cycle from 10% to 90%. A Soft-Start circuit is standard to avoid tripping facility breakers.
Contact us with your specific heavy-duty DC power supply price requirements and tank chemistry details. We will quote a custom current voltage rectifier that integrates with your existing line layout and process controller. No additional engineering fees for standard modifications.