The AC input is converted into high-voltage DC via a rectification and filtering stage in this 600 A, 12 V industrial rectifier for a hard chrome plating line. The "variable frequency conversion" stage inverts this high-voltage direct current into approximately 30kHz high-frequency alternating current. This high-frequency AC is then transformed into secondary voltage via a high-frequency transformer and filtered through a high-frequency rectifier circuit to produce the required output voltage. The electroplating rectifier power supply employs a control circuit to sample output voltage and current. These sampled signals undergo closed-loop feedback to generate pulse width modulation (PWM) signals, which regulate the inverter circuit and maintain stable output voltage/current - a critical requirement for precision electroplating applications.
Product Applications
Manufacturers widely use electroplating rectifier equipment for various surface treatment applications, including PCB electroplating, hard chrome coating, copper plating, zinc plating, gold plating, tin plating, nickel plating,and silver plating, among other metal finishing.
1.Field application diagram：
2.Industry application examples:
Technology Advantages
› Modular parallel connection
› Optional N+1 redundant backup
› Capable of online hot maintenance
› RS485 digital control function
› Low-voltage MOS tube rectification
› High power factor, high efficiency
› Reasonable structural design
› Effective sealed isolation
› No water joint design inside the unit
› Practical and effective multiple protection system
› Full soft switch technology
› High reliability
› Low noise, high protection level
Role of electroplating
Stops Rust & Chemical Damage
Zinc plating on steel parts creates a barrier against corrosion.
Reduces Wear & Tear
Hard chrome plating cuts friction, making components last longer.
Looks Matter Too
Gold finishes for jewelry / Chrome for car trim – it’s about aesthetics.
Keeps Current Flowing
We plate copper onto circuit boards because it conducts electricity best.
Better Solder Joints
Tin plating helps electronics components bond properly during assembly.
Fix Worn-Out Parts
Rebuild engine crankshafts or bearings by adding new plating material.
Medical implants use biocompatible coatings so bodies don’t reject them.
Types of electroplating
Copper Plating Primarily for base layers – boosts corrosion resistance and helps subsequent coatings stick better. Watch for: Oxidation (forms non-conductive patina). Always needs a topcoat.
Nickel Plating Works as a base layer or decorative finish. Fights corrosion/wear – electroless nickel rivals chrome durability. Heads-up: Magnetic nature messes with electronics (e.g., DIN connectors). Avoid in signal-critical areas.
Gold Plating King of contact surfaces: Optimizes conductivity and signal clarity. Stable performance; High cost
Palladium-Nickel Plating Outperforms gold: Better signal transmission + extreme wear resistance. Why it wins: Palladium’s anti-corrosion + nickel’s hardness.
Tin-Lead Plating Was the solderability champ, now phased out (lead regulations). Switched to: Bright/matte tin alternatives.
Silver Plating Unbeatable conductivity/signal quality – still works when oxidized. Downsides: Tarnishes without maintenance; premium pricing.
Elements of Electroplating
› Cathode The object to be plated (e.g., connector terminals or metal surfaces) where metal ions deposit into a solid coating.
› Electroplating Anodes Explained
Soluble Anodes • Material: Matching plating metal (e.g., copper anodes for copper baths) • Function: Dissolves to maintain metal ion concentration • Key use: Standard plating operations
Insoluble Anodes • Material: Non-consumable substrates (e.g., titanium/iridium oxide) • Function: Facilitates electron transfer without dissolution • Key use: Precious metal plating (white gold, etc.)
› Plating Solution Contains ions of the target metal. Composition and concentration determine coating thickness, adhesion, and appearance.
› Plating Tank
Material Requirements: • Must handle corrosive environments and thermal cycling • Typical choices: polypropylene or titanium alloys
Role: Stores solution and maintains stable plating conditions.
› Rectifier
Converts AC to DC power to drive electrolysis.
Adjust voltage/current to control deposition speed and coating thickness.
› Auxiliary Equipment
Filters: Remove impurities from the solution.
Heaters: Maintain solution temperature.
Stirrers: Ensure uniform mixing.
Component Part for Electroplating
Cooling Type for Electroplating
Air Cooling:Heat dissipation fan + air duct + comb heat sink
Water Cooling：Built-in water circulation line
Technical Parameters
Attribute type
Parameter items
Technical requirements
Input characteristics
Rated input voltage
Three-phase, AC380V ± 10%, 50Hz, In line with the national power quality standards
Rated input current
AC 12.7 A
Rated input power
8.3 KVA
Rated input power factor
COSΦ≥0.95
Output characteristics
Output voltage
DC 0-12V (1%~100% adjustable)
Output current
DC 0-600A (1%~100% adjustable)
Steady current precision
≤1%
Steady voltage precision
≤1%
Display accuracy
1A, 0.01V
Rated output efficiency
≥91%
Insulation characteristics
Insulation resistance
Input-output: ≥ 5MΩ
Input-chassis: ≥ 5MΩ
Output-chassis: ≥5MΩ
Protection characteristics
It has self-protection function under abnormal conditions such as overvoltage, overcurrent, overload, short circuit and overheat
Other characteristics
Noise
≤75dB
Operating status
Continuous full load operation of the product
Load grade
Grade II
Insulation grade of transformer
Class B
Weight
60kg
*OK to Customized according to requirements*
Solution
Liyuan will keep up with the world’s latest technology closely, and uphold the concept of providing customers with high-quality power supplies and professional integrated services.
With advanced design and rich experience in rectifier manufacturing, we will provide the best power solutions as well as the most stable and efficient power supply for users both at home and abroad.
Technical Capability
LIYUAN rectifier is the most competitive brand in China
Company relies on strong technology research and development cooperation basis, created a number of advanced technology, in recent 3 years amounted to more than 30 to apply for a patent, which has nearly 10 patents of invention.
Equipped with the national electric power transformation and control engineering technology research center (branch), and has set up a loan enterprise academician workstation.
Strict implementation of ISO quality management system, and through the CE safety certification, has been implementing ERP management for many years, to achieve the network, systematic computer control, the formation of a standard, efficient modern management system.
Qualification certification
Liyuan adhere to innovation and the continuous improvement of power conversion efficiency and product quality.
The increasing R&D investment every year, and cooperation with China’s well-known universities, we has established the research center of national electric power conversion and control engineering technology.
Especially the related core patents of high-power synchronous rectifier power supply, stay ahead of the whole industry in China.
The ISO 9001 quality management system has been fully implemented in Liyuan, including quality inspection of components in warehouse, production process inspection, and final product inspection.
We adopt advanced scientific quality management system and the most stringent testing methods in the whole process to ensure the stability and reliability of products.
Service
› Packing
1.Small size rectifier packing in carton box separately.
2.Large size rectifier will be packed in wooden case.
3.We guarantee that all the packing is intact when it reaches its destination.
› Shipping
1.30-45 Days after payment.
2.Transport: DHL, FEDEX, UPS, Air shipping, Boat shipping
3.You may choose our shipping partner or your own partner.
› Maintenance
We are pleasant to share our theory and experience on equipment maintenance with users.
We are pleasant to interact with users to collect their tips and know-hows on equipment maintenance.
The module “Maintenance” here is intended to help users solve various problems they possibly encounter during equipment maintenance…
If you need other power electroplating rectifiers, we can custom design them according to customer requirements. Please contact us.
Looking for a 600 A, 12 V industrial rectifier for a chrome plating line? Liyuan Haina Rectifier, a professional manufacturer with 27+ years specializing in industrial rectifiers, supplies global clients including the United States, Canada, Britain, Italy, Spain, South Africa, Russia, the UAE, Japan, South Korea, Malaysia, etc. Our advanced factory delivers cost-effective Made-in-China solutions, with competitive prices and customizable options. Contact us for sales inquiries.
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