A Vietnamese customer has repurchased 8000A 36V air-cooled rectifiers.

This customer, headquartered in Vietnam, is a core supplier of automation equipment, industrial machinery, and overall solutions to the local market, serving the Southeast Asian manufacturing sector for many years. Their business covers multiple fields including electroplating, surface treatment, and electronic component processing, and they have extremely stringent requirements for the stability, energy efficiency, and long-term operating costs of equipment in their supply chain.

Cooperation History: From Initial Trial to Deep Trust

March 2025 — First Purchase
January 2026 — Second Repeat Purchase
Customer Visit to China Factory
The customer arranged a team to visit our production base in China for on-site inspection and in-depth tour:
IGBT Power Module Aging Test Workshop
High-Frequency Transformer Winding and Nanocrystalline Core Assembly Line
72-Hour Full-Load Aging Test Area
Tin Plating Application Simulation Test Laboratory

8000A 36V Air-Cooled Rectifier Technical Highlights

1. IGBT High-Frequency Switching Technology, Significant Energy Savings
   Utilizing imported high-power IGBT modules as the main power devices, coupled with ultra-microcrystalline (nanocrystalline) soft magnetic alloy transformer cores, the overall efficiency is ≥90%, saving 15%-30% of electricity compared to traditional thyristor rectifiers. For high-power equipment at the 8000A level, long-term operation can save customers considerable electricity costs.
2. Intelligent Air-Cooling System, Adaptable to Southeast Asian Climate

Targeting the high-temperature, high-humidity, and salt-spray industrial environments of Vietnam and Southeast Asia, this machine adopts:

• Temperature-controlled intelligent fan: Automatically adjusts fan speed based on internal temperature, reducing energy consumption and noise.
• Anti-salt-spray acidification treatment: Circuit board conformal coating + anti-corrosion sheet metal casing.
• Independent air duct design: Ensures uniform heat dissipation for IGBT modules and transformers, supporting full-load operation at 45℃ ambient temperature.

1. Dual Closed-Loop Control, Guaranteed Plating Quality

The main control system adopts multi-loop control technology to achieve:

• One-button switching between constant current and constant voltage modes
• Output fluctuation <1% during load changes
• Stable current density during tin plating, avoiding "burning" or "dendritic" deposition defects.

1. Fully Digital Display and Intelligent Communication

• Real-time display of voltage, current, power, and running time.
• Supports RS485/Modbus protocols, allowing integration with customer's central PLC system.

Q1: What plating types is the 8000A 36V air-cooled rectifier suitable for?

A: This rectifier specification is mainly used in tin plating production lines, and is also suitable for electroplating processes such as nickel, copper, zinc, and chromium plating, as well as surface treatments such as anodizing and electropolishing.

Q2: Can the air-cooled rectifier operate stably in the high-temperature environment of Vietnam?

A: Yes. Our air-cooled rectifiers are designed for ambient temperatures ranging from -20℃ to +45℃, with a protection rating of IP54. The entire unit undergoes anti-salt spray and anti-acidification treatment, making it fully adaptable to the humid and hot industrial environment of Vietnam and Southeast Asia.

Q3: How much energy does the 8000A36V air-cooled rectifier save?

A: Utilizing IGBT high-frequency switching technology, the overall efficiency is ≥90%, saving 15%-30% of electricity compared to traditional thyristor rectifiers. Taking an 8000A36V (288kW) unit as an example, based on 20 hours of operation per day, the annual electricity cost savings can reach tens of thousands of yuan.

Q4: Does the rectifier support remote monitoring and PLC linkage?

A: Yes. Equipped with a standard RS485 communication interface, compatible with Modbus protocol, it can seamlessly connect to the customer's PLC control system to achieve remote start/stop, parameter adjustment, fault alarm, and data acquisition.

Q5: How long does it take from order placement to delivery to Vietnam?

A: The production cycle for a standard 8000A36V air-cooled rectifier is approximately 15-20 working days. Shipping to major Vietnamese ports (Ho Chi Minh City/Haiphong) takes approximately 7-10 days, with an overall delivery cycle of approximately 25-35 days.

Q6: How does the ripple coefficient of a tin-plated rectifier affect the plating quality?

A: The lower the ripple coefficient, the purer the DC output, and the denser, brighter, and less porous the plating. Our high-frequency rectifiers have a ripple coefficient ≤1%, far exceeding industry standards, significantly improving the corrosion resistance and solderability of the tin plating layer.

If you are looking for rectifiers or need customized electroplating power supplies, please contact us for detailed technical solutions and quotations.