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Metso is introducing the Sampo Cell, a breakthrough innovation in coarse particle flotation that enhances recovery of coarse particles without compromising fine particle recovery, helping mining companies improve the efficiency, profitability and sustainability of their operations.
“Mining companies are under increasing pressure to process more complex ores, improve recovery and reduce their environmental footprint,” said Teemu Kaarniemi, senior vice president of Separation at Metso.
“The Sampo Cell represents a significant leap forward in flotation technology. By expanding the recoverable particle size range and simplifying coarse particle flotation, customers can unlock additional value from existing operations.”
Based on a froth-feeding principle, the Sampo Cell technology gently feeds slurry directly into the froth phase, where separation occurs under low-turbulence conditions. This minimizes particle detachment and enables efficient recovery of particles that are typically lost in conventional flotation circuits. The Metso Sampo Cell can be applied for front-end gangue rejection or as a scavenger stage to recover valuable particles from intermediate or final tailings.
The design also simplifies coarse particle flotation flowsheets compared to other solutions. It operates without feed classification, fluidization water or additional concentrate dewatering stages, reducing equipment requirements and supporting easier integration into existing plants. The Sampo Cell uses familiar flotation controls and instrumentation, noted Metso, making implementation straightforward for plant operators.
Since March 2026, the Sampo Cell has operated continuously 24/7 in industrial-scale scavenger duty at an undisclosed copper mine in Chile. Operated by the customer, the technology has significantly increased total plant recovery by capturing particles typically lost in conventional flotation cells. The implementation has proven the value of coarse particle flotation under real operating conditions.
The Sampo Cell is part of the Metso Plus portfolio, supporting more efficient minerals processing through improved energy and water efficiency and higher resource recovery.
The post Metso introduces Sampo Cell flotation technology first appeared on North American Mining Magazine.