A copper plating production line is a specialized surface treatment system that forms a uniform copper coating on metallic or non-metallic workpieces through electrolytic or chemical deposition. Leveraging copper’s excellent electrical conductivity, weldability, and decorative properties, the system enhances both the functionality and appearance of components. It is widely used in the electronics, electrical, automotive, and hardware industries—particularly suitable for PCB boards, wires and cables, connectors, and metal accessories.
Core Structure:
The copper plating production line consists of five main systems:
Pre-treatment System – The essential first stage that ensures a clean surface and strong copper adhesion through three key processes:
Degreasing to remove surface oils and contaminants,Pickling to eliminate oxides and scale, and Activation to enhance surface adsorption and bonding capability.
Electrolytic System – The core of the process, including:
Corrosion-resistant plating tanks made of PP or PVC, filled with copper sulfate electrolyte,Electrodes, consisting of soluble copper anodes and customized cathode racks designed for uniform current distribution, and Adjustable DC Power Supply providing 0–12V output, with current settings tailored to the size of the workpieces.
Post-treatment System – Improves coating performance through：
Rinsing to remove residual electrolytes,Optional passivation to enhance corrosion resistance, and Low-temperature drying to prevent oxidation of the copper layer.
Conveying System – Uses automated racks or barrels to ensure smooth and continuous transfer of workpieces across different process stages.
Control System – Based on a PLC and touchscreen interface, it enables real-time monitoring of temperature (20–30°C), pH value (±0.1), and coating thickness (precision ±0.5 μm), ensuring stable and consistent production.
Key Advantages:
The copper layer provides superior electrical conductivity, meeting the signal transmission requirements of electronic components. The coating thickness (1–50 μm) can be precisely controlled to suit diverse applications. Operating at room temperature, the process features low energy consumption and no thermal deformation. With a high degree of automation, a single line can handle thousands to tens of thousands of parts per day, making it an indispensable production system that combines functional performance with decorative appeal in modern manufacturing.
