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Multi-Vib Screeners
Midwestern Multi-Vib screens reduce costs and increase
profits
Until recently, vibrating screens were calculated by using only two dimensions
– width determined capacity and length determined efficiency.
Midwestern Industries’ Multi-Vib screens utilize a third dimension –
“depth” – in addition to width and length to calculate size.
The “depth” dimension is accomplished by using
five screening decks arranged one above the other to impart rapid vertical movement
to the material being screened. The material passes through the top coarse screen
to the progressively smaller screen openings below where it is retained –
or passes through the finest screen on the fifth deck. It uses cost-free gravity
as energy. We call this screening concept Vertical Stratification. The five
decks used for vertical stratification reduce deep-bed information on any particular
deck. It may require using several decks as reliever screens to minimize the
depth of bed on the finest product screen – assuring consistent product
specification.
Multi-Vib units are available in three models with screening
areas of 75 (3’x5’), 120 (4’x6’) and 175 (5’x7’)
square feet. They are powered by belt-free vibrating motors. The largest Multi-Vib
(5’x7’) uses only two energy-saving 8.4 horsepower motors. The vibrating
motors are contra-rotating and develop a lineal motion.
Simplified Screen-panel Tensioning
The Multi-Vib design incorporates rear-screen (end) tensioning to simplify and
lower the cost of changing screen panels. All five decks of the Multi-Vib are
easily accessible and tensioned only at the feed end. A screen deck can be changed
in a few minutes, not “hours” like conventional screens.
Midwestern Industries weaves a special Interkleeen ® (long slot) screen
for greater production.
Compact, Easy to Install
The rugged, compact, easy-to-install Multi-Vib design makes the unit ideal for
portable plants. It requires up to 50% less structural support compared to conventional
rectangular screens of similar capacity. Also, Multi-Vib screens can be pedestal
mounted or cable suspended.
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