ECC Chromium Plating Machine Introduction

The 4000A 15V chromium plating rectifier integrates advanced Electronic Current Commutation (ECC) technology. This system electronically controls and reverses current polarity at high speed during the plating cycle. Consequently, it enables the deposition of ultra-dense, low-stress chromium layers. Therefore, this chromium plating rectifier is essential for high-quality, high-throughput hard chrome applications on large-scale industrial parts.

Product Parameters

Product Type: High-Frequency Switching Power Supply (with Electronic Commutation Function)

Rated Output: DC 0-15V / 0-4000A

Commutation Characteristics: Forward (Cathode) Current: 0-4000A Adjustable

Reverse (Anode) Current: 0-4000A Adjustable (e.g., 20%-50% for forward, depending on model)

Commutation Time: Forward 1-900s, Reverse 0.1-90s Adjustable (Typical Range)

Input Voltage: AC Three-Phase 380V ±15%, 50/60Hz

Control Accuracy: Voltage/Current Stabilization ≤ ±1%

Ripple Coefficient: ≤ 2% (Under Constant Current Condition)

Cooling Method: Water Cooling

Protection Functions: Overcurrent, Overvoltage, Overheat, Water Shortage, Phase Loss, Short Circuit

Key Features of the ECC Chromium Rectifier

• Advanced ECC Technology for Superior Coating: This rectifier's rapid electronic commutation disrupts regular crystal growth. As a result, it produces a fine-grained, crack-free chromium coating with exceptional density, hardness, and adhesion.
• High-Speed, High-Current Deposition: The 4000A capacity enables rapid plating of large surface areas. Moreover, ECC allows for higher average current densities without burning. Therefore, it significantly reduces total plating time.
• Precision Process Control for Consistency: Operators can program complex ECC cycles with precise control over forward/reverse timing and current ratios. This ensures batch-to-batch repeatability and meets stringent industry specifications (e.g., MIL-STD, aerospace standards).
• Industrial Reliability and Safety: The dedicated water-cooling plant manages the substantial 60kW thermal load for continuous operation. Furthermore, comprehensive monitoring and protections ensure safe and reliable performance in demanding production environments.

Key Advantages

1. Improved Plating Quality: Stable current and precise commutation ensure uniform chromium plating thickness, brightness, fewer microcracks, and strong adhesion.

2. Guaranteed Production Continuity: Effective management of the plating bath reduces downtime for cleaning due to anolyte passivation or trivalent chromium imbalance, improving equipment utilization.

3. High Efficiency and Energy Saving: Water-cooling design improves electrical efficiency, and electronic commutation optimizes the process, resulting in lower overall energy consumption.

4. Intelligent and Simple Operation: Automated control of commutation cycles and parameters reduces reliance on operator experience, ensuring good process repeatability.

Honors and Qualifications

Since its inception, the company has adhered to a market-oriented approach, with technological innovation as the core of its development. Through continuous innovation and upgrading, and by improving its scientific research and technology, it has successively obtained software copyright, software product, patent certificates, and CE certification, and has been recognized as a high-tech enterprise, one of China's top ten power supply brands, and a science and technology-based SME. Simultaneously, the company's domestically developed and innovative products have gradually replaced imported products.