Products & Equipment Pits & Quarries
GreyStones new self-erecting screen tower

May
16, 2013, Columbus, Neb. – GreyStone offers a self-erecting screen tower that
allows producers to go completely portable. The screen tower is used for sand,
gravel and aggregate producers that move equipment from site to site at least
once per year, and uses a horizontal, vibrating three-deck wet screen.

GreyStone's
portable Self-Erecting Screen Tower takes less than two days to tear down and set
up and can easily be moved via semi-tractor. It can act as a primary screen for
operations that screen 6-inch minus material or as a secondary or tertiary
screen for plants that screen larger material. Fed by either a dredge or
conveyor, it feeds material 3/16-inch minus into a classifying tank and
stockpiles up to three material sizes from the three decks for further
processing.

The
tower is raised and lowered at the touch of a button, using a winch-driven
system with pulleys to move the tower up and down. It is available in custom screen
sizes up to 6 by 20-feet; heights range from less than 14 feet in the low
position up to a maximum height customized to each specific operation. 

Actual
production depends on the feed and material being processed, but GreyStone says
that producers can expect rates to be the same as permanent and stackable
screens. It is constructed of ASTM A36 certified structural steel with walkways
along both sides for safety. The tower complements GreyStone's current line of
portable classification tanks and conveyors, but can also be customized to fit
any operation.