StokkermillSolar is the division of Stokkermill Recycling Machinery dedicated to the development of advanced technological solutions for the treatment and recycling of end-of-life photovoltaic solar panels.The goal is clear: to concretely and sustainably address the environmental challenge posed by the disposal of decommissioned photovoltaic modules, ensuring the efficient recovery of the most valuable components, including glass, silicon powders and precious metals. Using a functionality-oriented engineering approach, we design and build reliable, automated, low-maintenance PV panel recycling facilities that can operate continuously 24/7 with low operating resources.Translated with DeepL.com (free version)

Delaminator Mill XRS

The Stokkermill XRS delaminator mill enables mechanical separation of layered materials, releasing the silicon/glass fraction trapped in the EVA layer. Using a controlled crushing process, the silicon is recovered in fine form along with a fine glass fraction and any precious metals.
Due to the specific design and use of special materials, wear and tear is extremely low, with minimal downtime and high operational continuity.

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alluminum

The Stokkermilll recycling system does not require removal of the aluminum frame, drastically reducing panel processing time. The quality of the output materials is excellent.Aluminum, for example, will be oven-ready free of any pollutants and of the correct size, suitable for downstream metallurgical processing. Thus, maximumvalorization of the material and minimal energy impact during the final processing.

glass

The glass resulting from the treatment operations is of different grain size and quality. Larger size glass is clean, has a low iron content and is reused by the glass industry. A smaller size fraction still finds use in the glass or steel industry, where it can be used for the production of high quality silicon steels.

silicon

The thinnest fraction of glass will contain silicon, traces of silver and other metals. While it already finds wide application in a variety of industries, it is a fraction yet to be discovered in terms of value and recovery opportunities.

plastic

The polymeric back-sheet and EVA (Ethylene Vinyl Acetate) fractions, are recovered at the end of the process. They are fractions substantially free of glass and other pollutants and characterized by good calorific value such that they find applications as alternative fuels.

copper

During the solar panel recycling process, copper represents one of the strategic recoverable metals, mainly found in electrical conductors and, to a less significant extent, in the module's internal connections. Although it constitutes only about 1.2 percent of the total weight of a standard panel (about 12 kg out of a ton of treated panels), copper has high economic value and high potential for reuse in industry.

Solar Panel Recycling Solution

Automatic PV solar panel recycling line

Delaminator Mill XRS

alluminum

glass

silicon

plastic

copper

How a Solar Panel is Made:

Automatic delamination system for treatment of framed solar panels

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