This heavy‑duty water‑cooled rectifier supplies stable 360 kW DC output for continuous large‑batch hard‑chrome plating production with automatic polarity reversal and N+1 redundant modules.
Gaohui Power Supply builds the 20000A 18V Water‑Cooled Hard Chrome Rectifier for large heavy‑duty hard‑chrome plating workshops that run non‑stop mass production. Heavy hard‑chrome plating demands extremely high continuous current, and air‑cooled structures struggle to dissipate massive heat under 20000A full‑load conditions. At the same time, many plating workshops require automatic commutation cycles to eliminate surface defects, while unplanned module shutdown can halt entire high‑volume production lines. For these practical pain points, this rectifier adopts water‑cooled heat dissipation, N+1 redundant modular design and built‑in automatic commutation control to sustain stable 20000A output without interrupting production workflows.
This water‑cooled hard chrome rectifier mainly serves large‑size part hard‑chrome plating such as hydraulic piston rods, heavy machinery shafts and mining component surfaces. Furthermore, its integrated automatic commutation function executes reverse‑current etching cycles directly without adding external controllers. Meanwhile, N+1 redundant layout keeps the whole system running even if one single power module fails, which drastically cuts unexpected downtime for high‑output plating workshops.
This water‑cooled hard chrome rectifier applies high‑power parallel IGBT modules and reaches overall working efficiency higher than 95 percent. Since circulating water directly takes heat away from power components, cabinet internal temperature stays steady even under round‑the‑clock 20000A full‑load operation; hence you avoid performance drift caused by overheating during long production batches. What is more, the N+1 redundant design spreads total current over multiple power units, so every individual module works within safe load range and extends overall equipment service life.
Its native automatic commutation control handles polarity switching precisely without extra hardware. Accordingly, operators set plating duration and reverse‑etching duration on the local touch screen, and the unit repeats full cycles automatically to optimize chrome layer uniformity. Besides, heavy‑duty silver‑plated copper busbars lower contact resistance at massive current output, which reduces extra thermal loss on output connections.
Our engineering team optimizes internal water‑circuit flow paths and adds multi‑level water‑leakage sensors. Consequently, the rectifier delivers reliable water‑cooling performance while preventing hidden risks of liquid leakage inside electrical cabinets. In turn, this design satisfies strict safety requirements for high‑current electroplating workshops and simplifies daily equipment inspection work.
| Parameter Category | Specific Item | Specification |
|---|---|---|
| Input Parameters | AC Input Power Supply | Three‑phase AC 380V, ±10% tolerance, 50‑60Hz |
| DC Output Parameters | Output Voltage Range | Zero to 18V adjustable |
| DC Output Parameters | Output Current Range | Zero to 20000A adjustable |
| DC Output Parameters | Rated Output Power | 360kW |
| DC Output Parameters | Voltage Regulation Accuracy | Within one percent |
| DC Output Parameters | Current Regulation Accuracy | Within one percent |
| DC Output Parameters | Ripple Factor | Within one percent |
| Control and Automation Functions | Operation Modes | Constant Current, Constant Voltage, Automatic Commutation Cycle |
| Control and Automation Functions | Auxiliary Control Devices | Touch‑screen operation, ampere‑hour meter, cycle timer |
| Control and Automation Functions | Programming Functions | Custom forward/reverse timing setting, multi‑segment parameter programming |
| Physical and Communication Parameters | Cooling Mode | Closed‑loop water‑cooled |
| Physical and Communication Parameters | Protection Grade | IP20 for indoor plating workshop |
| Physical and Communication Parameters | Communication Protocol | RS485 Modbus RTU |
| Physical and Communication Parameters | Working Efficiency | Above ninety‑five percent |
| Physical and Communication Parameters | Redundancy Mode | N+1 modular redundancy support |
We can provide:
This rectifier carries one‑year warranty with expected service life over 10 years. To begin with, closed‑loop water‑cooled assembly and N+1 redundant configuration come as standard. Furthermore, built‑in automatic commutation logic removes need for additional polarity‑switch hardware. In addition, complete protection covers over‑current, over‑temperature, water‑flow anomaly and leakage detection. Therefore, send us your hard‑chrome plating tank layout and process parameters for further custom configuration.
This water‑cooled hard chrome rectifier targets high‑volume heavy‑duty hard‑chrome electroplating production. First and foremost, it acts as core power supply for large plating workshops processing hydraulic piston rods, rolling mill shafts, excavator pins and other heavy‑load mechanical parts.
In addition, heavy‑industry component factories deploy multiple units side‑by‑side for multi‑tank parallel production lines. As a matter of fact, its built‑in automatic commutation meets standard hard‑chrome process needs for reverse etching to improve coating adhesion and surface quality.
It also fits plating‑process research labs that test high‑current chrome‑plating recipes. Thanks to N+1 redundancy, production can keep running during partial module maintenance. What's more, it integrates well with existing factory automation platforms through Modbus links for centralised production‑line management.
Gaohui Power Supply develops tailor‑made Water‑Cooled Hard Chrome Rectifier with N+1 redundancy and automatic commutation for heavy‑duty hard‑chrome plating manufacturers, and high‑current water‑cooled power‑supply design forms our core competitiveness. Above all, our engineers adjust module quantity, water‑circuit layout and commutation timing logic according to your tank scale and actual plating‑process requirements.
Apart from that, every finished 20000A 18V rectifier passes 100 percent full‑load ageing test, water‑leakage inspection and commutation‑cycle verification under ISO9001 quality rules before delivery; as a result, you receive equipment proven for long‑term stable performance inside harsh electroplating‑shop environments.
Our full‑lifecycle service includes remote debugging guidance, on‑site technical training and spare‑parts supply. Whenever you expand production capacity, you can add power modules to upgrade output capability without replacing the whole cabinet. In short, work together with Gaohui Power Supply for robust high‑current rectifier solutions for your large‑scale hard‑chrome plating operations.
Learn more about related products：10000A 15V Water-cooled Hard Chrome Rectifier with Automatic Commutation
A: Products with the same nominal specifications often serve different industries, and they may carry different detailed parameter requirements. These differences directly affect production costs and technical solutions, so final prices will vary accordingly. For this reason, we recommend you contact us directly to receive a precise and tailored quotation.
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A: We focus on custom non-standard industrial power supplies, so we can fully adjust output current and voltage to match your exact needs. The products shown on our website only represent part of our actual range, as we do not list every model online. If you cannot find your desired specifications, please contact us directly. We will work with you to confirm your exact requirements, or we can guide you to select the most suitable parameters based on your industry standards. We will provide complete technical specifications and dimension drawings so you can fully understand the product.
