The primary function of the RMS Circular Jigs is stratification.
The secondary function is the separation
of the stratified layers into two discrete products,
tailings and concentrate. The stratification and
separation are affected by the jig cycle...
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 CIRCULAR JIG CROSS SECTION |
The jig cycle consists of an upstroke, or 'propulsion stroke', and a downstroke, or 'suction stroke'. The upstroke results in the creation of a very 'soft' bed (dilation) where the lighter particles are lifted into the tailings stream and the heavier particles can readily sinlc and be sucked through the screen in the downstroke or the suction stroke. The inflow of water is restricted to the downstroke so that the suction in the bed can be modified to suit the highly variable conditions on site.
Circular jigs are more efficient than trapezoidal or square configurations where interference patterns result in zones of pulse disruption, negatively affecting feed flow. Whereas pulsations occuring in a concentric round chamber, working at a tuned frequency, will give rise to balanced nodal pulse patterns providing even vertical sorting of the jig bed. Therefore, the RMS Circular Jigs are more efficient by inherent physical design.
The RMS Circular Jig has a simple harmonic motion cycle where the up and down strokes are of equal duration and intensity, but both length of stroke and frequency are independent and easily adjustable.
| The same is true of hutch water; there are individual tanks and adequate valving for absolute control of water pressure. The higher the hutch water pressure, the less the suction, the higher the grade of concentrate. Inversely, the lower the hutch water pressure, the greater the suction, resulting in more concentrate but lesser grade. |  |
[Circular Jigs - Photos and basic
decription]
Manufactured by:
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E-mail: gold@rmsross.com
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Low Specific Gravity 
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