Bollman extractor

industrial machine

Also known as: Hansa-Mühle extractor

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Last updated

June 22, 2026

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The Bollman extractor is an industrial machine used in solvent extraction for recovering oil from oilseeds. It was developed in Germany and is considered one of the best continuous extraction units. In this type of extractor, solvent percolates through oilseed flakes held in perforated baskets that move along an endless chain. Once the extraction is complete, the baskets are automatically emptied and refilled with fresh flakes to begin a new cycle. This method allows for efficient recovery of oil from materials like cottonseed, which is a byproduct of cotton grown for fiber.1

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fat and oil processing
Extractors
…of the best, was the Bollman or Hansa-Mühle unit from Germany, in which solvent percolates through oilseed flakes contained in perforated baskets moving on an endless chain. After the extraction cycle is complete, the baskets of extracted flakes are dumped automatically and then refilled with fresh flakes to initiate another…
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…of the best, was the Bollman or Hansa-Mühle unit from Germany, in which solvent percolates through oilseed flakes contained in perforated baskets moving on an endless chain. After the extraction cycle is complete, the baskets of extracted flakes are dumped automatically and then refilled with fresh flakes to initiate another…
Read More