Oliver Platinum Series, Operation Manual, Page: 16 / 61

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III. How the Voyager Controls Separation
The main parts of the Voyager gravity table are the deck, the feeder, and the fans. Each one provides
several degrees of freedom to the separation process.
I. The Deck
The Deck on the Voyager gives the most degrees of freedom to the separation process. Each
controllable feature of the deck gives a different degree of control to the process.
The Side tilt, or the Slope of the deck between the high side and the low side, allows the product to
be separated by the vibration because gravity will pull down the lighter particles while the heavier
particles are forced to the high side of the deck by the vibration of the deck and the friction that
resists the falling motion of gravity. If there is not enough side tilt, the product will all gather at the
high side because there is no gravity to pull down the lighter particles to the low side of the deck. If
there is too much side tilt, the product will not reach the high side and will all slide towards the low
side. In both of the case of the tilt being too extreme, proper stratification never really happens. If
the side tilt is correct, there will be a good separation as the product will stratify and then separate
out properly.
Figure 7: Different Side Tilt Positions and their effect of stratification and separation