Tabbing ribbon, also known as PV ribbon or bus ribbon, plays a crucial role in connecting solar cells within a photovoltaic module. While often used interchangeably, the main distinction lies in size and function: bus ribbon is typically wider and sometimes thicker than tabbing ribbon.
You can think of tabbing ribbon as the "roads" that carry current across individual solar cells, while bus ribbon acts as the "highways" that collect and transmit current from multiple cells. Because it handles more electrical current, bus ribbon has a larger cross-sectional area. For reference, bus ribbon typically ranges from 5 mm to 6 mm in width, though certain applications may require even wider ribbons—sometimes more than twice that size.
At SKY BLUER CHINA, we have engineered the CRM909 machine model specifically for the efficient production of solar tabbing ribbon. This advanced production line includes the following key processes:
1. Copper Rod Drawing
2. Induction Annealing
3. Precision Rolling
4. Tin Coating via Electroplating
5. Winding and Spooling
This integrated system ensures consistent quality, high conductivity, and optimal solderability—critical for modern photovoltaic applications.
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