Factors to Consider When Customizing Screens

Vibratory Screens can be configured with one, two, three, or four decks. Some fine screening operations can even have as many as eight screening decks. Three decks are pretty common in the aggregate industry, but the number of screen decks depends on the number of products the site needs to make.

Screens are tailored to an operation based on the following factors:

● Basic capacity – how much material is going to pass through a certain opening.

● Incline – how much of an incline, if any.

● Deck – not all of the length of the lower decks may be utilized, as material has already traveled down some length of the upper decks before reaching the lower ones.

● Oversize – how much material should go over the deck.

● Half size – how much material is half the size of the media opening With a high percentage of half size, the probability of the material passing through the screen openings will be higher, and the screen will be that much more efficient.

● Slot – how large the openings in the screen are.

● Condition – applies to both the feed material and the atmosphere around the plant. Is the material wet and sticky? Does it have a high percentage of clay? What is the temperature outside? Is it a wet or dry climate?

● Shape – Round or cubical particles have a higher chance of passing through the screen openings than a flat, elongated particle that has to find just the right position to fall through.

● Weight – the density of the material.

● Open area – the more open area on the screen, the better the chance particles will find an opportunity to pass through.

How many decks do I need for my Vibratory Screen?

Vibratory Screens can be configured with one, two, three, or four decks. Some fine screening operations can even have as many as eight screening decks. Three decks are pretty common in the aggregate industry, but the number of screen decks depends on the number of products the site needs to make.