Solar Panel Production

The Photovoltaic or Solar Electric industry has grown significantly in recent years with the growing emphasis towards clean, renewable energy production. Each Solar Module is comprised of many silica wafer cells joined together with a conductive stringer or ‘bus-bar’.

The photoelectric properties of silica convert light energy into electrical energy. Depending on the size of the module, and the number of cells per module, individual modules generate between 200 and 500 kilowatts. When grouped together in tens, hundreds or even thousands of modules, solar arrays can generate from 1 or 2 kW on a house or barn rooftop to 1 megawatt or more on large rooftops or solar farms.

Conveying Panel Components - After individual solar wafers or cells are produced, they are soldered together with other like cells, in series, to form a string. Conductive stringers are used to join the cells together. This soldering process usually takes place on a conveyor with the cells lying flat and the stringer being attached to one side. The belts are often perforated to allow the cells to be held securely in place with a vacuum system while the stringers are being attached.

Key Considerations:

  • Operating Temperatures - Ensure that the process does not exceed 287°C / 550°F.
  • PTFE Group Perforated Belt Technology- Different OEMs use different methods of securing silica cells to the conveyor belt including the use of porous belts and vacuum suction. Some Belts have up to 15,000 perforations in a 7.5 meter section. PTFE Group has successfully developed belt technology that maintains the required amount of suction with fewer holes. This results a more durable belt and time and cost savings. 

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