Basically ...........

Circle throw inclined screen type:

- MOST ECONOMICAL (gravity is free)

- less expensive capital cost

- less maintenance headaches

- smaller motors to operate

- lots of TPH cheap

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Linear Motion: GEAR DRIVEN Horizontal screeners:

- Most expensive to buy and operate

- Typically picked if need to install in tight space, height restrictions, etc

- typically picked for dewatering applications

- Higher capital cost than inclined....due to 2 shafts, gear drive setup, bigger drive motor needed due to flat installation, more power needed to run vs inclined

- Much longer for bearing changes on gear drive, more complex

- less TPH typically.....run at 45FPM vs 60FPM-75FPM on 20 deg inclined screens

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At the end of day........if you ask 10 people you will get a split of about 50/50 due to person preferences....and everyone if right.

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Linear screens with INVICTA type motors......are not as aggressive stroke action or operating G's as gear driven units. ■

Most of the quaries use circular or elliptical motion screens. Mining and dewatering screens use linear motion screens - linear motion can be also achieved using 2 cicular motion mechanisms ■

Here is a flow chart to help decide which type of screen to use:

http://www.jvivibratoryequipment.com...ampaign=screen ■