The Three-Cell Plunger Jig is a high-capacity laboratory gravity separation unit designed for multi-stage, density-based concentration of mineral feeds. Three separation cells, each driven by its own independent plunger, operate in series — providing sequential cleaning stages within a single machine. This makes the unit particularly well suited to evaluating concentration potential and stagewise recovery.
Features:
- Adjustable Pulsation Rate: Continuously variable from 0 to 300 RPM via an electronic motor speed controller, providing precise control for different ore types and process conditions.
- Three Separation Cells: Each cell measures 200 × 275 mm and is driven by an independent plunger, enabling sequential, multi-stage separation in a single pass.
- Bottom Screens: Each cell is fitted with a bottom screen; standard apertures of 1 mm, 2 mm, 3 mm, and 4 mm are supplied to suit a range of feed sizes.
- Robust Steel Frame: Three 200 × 275 mm cells integrated into a heavy-duty steel construction for long service life and stable operation.
- Eccentric Shaft & Bearings: The eccentric drive shaft runs in wear-resistant bronze bearings, ensuring smooth pulsation transfer and extended maintenance intervals.
- Independent Valve Control: Each cell features its own bottom discharge valve and a dedicated top water make-up valve, allowing bed level and water consumption to be tuned independently at every stage.
- Nominal Capacity: Up to 15 kg/hour; actual throughput depends on feed characteristics and particle size.
The Three-Cell Plunger Jig is optimised for laboratory-scale multi-stage gravity concentration, offering the precision and operational flexibility required to evaluate mineral processing flowsheets.

