–Older design
–Produces the lowest G-force
–Fast conveyance of cuttings
–Often used as scalping shakers
–Works well with sticky, clay-type solids
–Has a low capacity for drying cuttings, so wet cuttings are often discharged
•The elliptical-motion shaker,
–Modification of the circular motion type in which the center of gravity is raised above the deck and counter-weights are used to produce an egg-shaped motion that varies in both intensity and throw as solids move down the deck.
–Slow transport
–Dryer cuttings
•The linear-motion shaker
–Uses two circular-motion motors mounted on the same deck.
–The motors are set for opposite rotation to produce a downward G-force and an upward G-force when the rotations are complementary, but no G-force when the rotations are opposed.
–The G-force on most linear-motion shakers is variable from about 3 to 6.
•The linear-motion shaker cont
–Most versatile design
–produces fairly high G-force
–fast transport depending on the rotational speed, deck angle and vibrator position.
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