Benefits and Capabilities
Eddy Pump
Tornado Motion is the only operations company
currently licensed to use the patented
Eddy
Pump high solids dredge pump in
dredging applications.
Higher Average Solids Percent by Weight
The exclusive Eddy Pump design allows for the
pumping of highly viscous materials, and
sediment slurries in higher concentrations
than conventional pumps. A higher average
percent solids by weight is achieved because
Tornado Motion's unique dredge design keeps
the pump constantly supplied with material.
Sediment re-suspension:
The combination of Tornado Motion's
equipment and the use of the Eddy Pump have
enabled us to operate at very low to non-detect
levels of turbidity.
We record turbidity levels at the head and
use underwater cameras to watch the material
being drawn into the rotating guard system.
We have been selected to do projects where
silt curtains are impossible or impractical
and low turbidity operation is essential. Oakland
University professor Linda Schweitzer said,
“The project gets a gold star, We
got as close as 200 feet of the dredge site
and there were no suspended sediments in the
water. If we didn't find anything within 200
feet, they won't find it 20 miles downstream
in drinking water intakes.”
Production Rate:
Tornado Motion's equipment has always
employed a great deal of technology in order
to produce the best results. A high production
rate is achieved through continuous run time
and good average slurry density. Production
rates can range from 50 cubic yards/hour to
350 cubic yards/hour depending on the equipment
selected and the project requirements. Through
years of testing and development the productivity
and reliability of the technology has drastically
improved.
Self-Cleaning Guard:
This system is a patented self-cleaning
design that virtually eliminates the suction
from becoming fouled with clay, rock, rope,
vegetation, etc. This feature reduces lost
production time due to head cleaning and more
importantly, exposure of workers to removing
contaminated debris from the head.
Horizontal Accuracy:
Tornado Motion's equipment employs
a Patented compact head assembly that can be
articulated in 3 dimensions independently of
the main ladder and allows for surgical digging
under, over, and around obstacles with the
aid of underwater cameras. When the head is
in automatic articulating mode the head remains
parallel with the centerline of the dredge
throughout the entire swing. This creates a
level cut even when going up and down slopes
as well as eliminates gouging and over-dredging.
Vertical Accuracy:
Tornado Motion's dredge employs
PLC controlled ground sensing technology and
a large fiat contact patch with the ground.
These features enable the head to differentiate
between a thin layer of soft contaminated sediment
found on top of a generally runner virgin material.
Accordingly with the ground density the operator
can program how much down pressure to apply
to the head so as to only remove the contaminated
sediment and not over-dredge into virgin material.
Underwater videos and diver inspection reports
confirm the accuracy.
Maximum water depth:
Tornado Motion currently operates
ladder equipment capable of depths from 26
- 45 feet and cable deployed equipment up to
100 feet water depth.
Positioning Control and DAS:
Tornado Motion Dredges can be equipped
with RTK GPS positioning systems. Some dredges
offer a 4-spud system that provides excellent
positioning control and a swing system that
is self-contained. Spud carriages advance the
dredge with incredible accuracy. Data Acquisition
system (DAS) is used to record desired data
which can be analyzed and presented as required.
Surface Water Flow Characteristics:
Tornado Motion's dredge has successfully worked
in many different types of water conditions.
The four-spud system is the main reason the
dredge works so well in high water velocities,
varying water levels and chop. The spuds
can be powered down to hold the hull level
during dredging or set in "float mode" to
allow the hull to move up and down with the
water level when required.
Pipeline Transport:
Tornado Motion's dredges compliment
long floating and/or land-based pipelines to
deliver material directly to the desired location
without re-handling. If required, booster pumps
can be added to the pipeline.
Portability:
Tornado Motion has transported dredges around
the world by truck, ship, and container.
All of our equipment is non-permit loads and
easily assembled on the waters edge. Some of
the work we have done has been in remote land-locked
areas where mobilization can be extremely challenging
or impossible for other types of equipment.
Diver Operated Dredge:
Tornado Motion worked with the US Navy's MDSU
1 Dive group to develop a small diver operated
dredge that was used to clean out some old
wrecks in the shallow waters of Midway Island.
Tornado Motion was also asked to develop
a diver controlled stinger that could be
attached to a dredge when needed.
Flexibility for Varying Conditions:
Our equipment can often be adjusted
or reconfigured to meet varying conditions.
We listen to our clients needs and work towards
providing an effective solution. Tornado Motion
has learned that being able to quickly adapt
to changing conditions is an essential requirement
of today's challenging dredging projects.
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