31/03/2026
The InLine Leach Reactor, a defining Gekko Systems innovation
For nearly three decades, the InLine Leach Reactor (ILR) has stood as one of Gekko Systems’ most significant contributions to modern gold and silver recovery. Introduced in 1997, the ILR was the first commercial intensive leach reactor of its kind, setting a new global benchmark for secure, efficient precious metal extraction.
Engineered to replace traditional open circuit shaking tables, the ILR delivered a fully enclosed, intensive leaching environment that improved both security and metallurgical performance. What began as a continuous unit for high volume IPJ concentrates quickly evolved into a versatile batch configuration, enabling operations to treat a wide range of concentrate types with greater consistency and control.
From its early success in Australia to rapid uptake across Africa, the ILR became the preferred solution for operations seeking higher recoveries and improved security. Today, more than 200 units operate across major gold producing regions, the largest global installation base for intensive leaching of gravity concentrates. Notably, the original R&D prototype remains in service at the Henty Gold Mine in Tasmania, underscoring the technology’s durability and engineering strength.
The ILR has evolved to treat both coarse and fine concentrates, supporting gold and silver recovery in diverse plant configurations. In 2024, Gekko commissioned the next generation ILR3000 batch automatic unit, achieving 98–99% recoveries on startup, a milestone that reflects our commitment to ongoing improvement and operational excellence. Gekko’s intensive leach test protocols, developed specifically for the ILR, continue to guide plant design and optimisation globally.
The ILR exemplifies Gekko’s approach to innovation: smarter, more secure, and more efficient mineral processing. As we celebrate this milestone, we recognise the ILR not only as a world-first technology, but as a solution that continues to shape industry practice and deliver value for operations worldwide.
A pioneering idea in 1997, a global standard today.
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Read more: https://www.gekkos.com/news/technology-solutions/inline-leach-reactor/gekko-inline-leach-reactor-30-years