Sukup® Fastir: Simply Dependable Stirring
Stirring mixes the dried
grain at the bottom of the bin with
the wetter grain toward the top. This results
in a more uniform moisture content. In fact,
university tests have shown a less than 1%moisture variation
from top to bottom in stirred grain. Stirring also loosens
grain, reduces static pressure and increases airflow.
This, in turn, means grain dries more quickly and efficiently.
Iowa State University tests have found that, by using
a stirring machine in wet grain with a powered spreader,
airflow is increased by 33%.
The patented, mechanical drive moves carriages back and
forth on the crosstube to change stirring pattern. No electrical
Drive mechanism contains few moving parts.
Angled shields on the carriages allow stirring closer
to the wall.
The mechanical reversing process eliminates reversing
switches, drive gearboxes, chains, and cables.
Carriages are self cleaning.
All down augers are hard faced for longer life, and they
carry a two-year warranty.
Extra down augers may be easily added to the Fastir at
any time, to increase stirring capacity as drying needs
Heavy-duty crosstube is capable of supporting up to five
Sukup® stirring machine track mounts higher in the bin
giving up to 680 bu. of extra storage in a 36' bin.
The Fastir Plus combines all of the features of the Fastir
with a stationary auger along the bin wall.
The stationary outside auger on the Fastir Plus ensures
Constant pitch augers fill only from the bottom, where
the dried grain is located, so they move more dried grain
than graduated pitch augers which pick up grain along the
full length of the auger.
Off-set hanger provides better stirring in the center
of the bin to break up the concentration of fines over the
NECO® Stir-Rite: The Reliable Grain Stirring Machine
When grain stirring was introduced it wasn't
more than a promising, but good idea. Attempts at stirring
machine design presented many problems and solved very few
Now Stir-Rite makes a good idea into a practical
and effective drying and grain storage system. Real engineering has replaced
the flimsy concepts of the past with a more rugged,
reliable, and simpler machine.
When you've installed a Stir-Rite in your
bin, no matter whether you used heated or natural air,
drying will be faster and more efficient. Also moisture
content will be more uniform throughout the bin. Preserving
the quality of stored grain is also made easier.
In operation, the hottest and driest grain at
the bottom is moved upward. All grain in the bin is mixed
and blended until moisture content is uniform. Overdrying
in some parts of the bin and underdrying in other parts are
The auger rotation gently lifts the grain as
the augers move around the bin. The patterns these augers
follow cross and recross many times until every part of the
bin has been thoroughly stirred.
Unique Stir-Rite features:
Gooseneck pivot design suspends the inner end of the main
beam in a way that permits the auger to move all the way
to the bin center. The auger also comes within 7" of
the bin wall. The beam connecting point is movable to precisely
match the Stir-Rite to your bin. This feature assures that Vavrina Inc. will have a Stir-Rite for you even is your
bin is not standard size.
The backbone of the Stir-Rite is a wide flange beam. Its
the kind used for bridges and large structures. It was chosen
for its high strength and rigidity in relation to weight.
A rotating contact was specifically designed for this
application. It has a heating element to reduce moisture
condensation during drying.
Because of the unique increasing pitch design the augers
start and advance through grain much more easily than uniform
pitch augers. Distance between flights is smallest at the
bottom then increases slightly toward the top. This allows
for additional grain to enter the auger over its total length.
This action helps loosen the entire bin of grain. The looser
grain allows the augers to travel through the grain much
faster and thus completing their job much faster. This also
lets more air pass through the grain.
Paddles on stirring augers are fabricated from flexible
material. This is for safety and reduces the chance of damage
Augers are hard-surfaced on the lifting faces to assure
Stirring auger is driven by a 1 1/2 HP motor specifically
designed for this application. A V-belt drives the auger
and is kept in proper tension by a self-adjusting motor
mount. Outside augers turn faster than the inside auger.
Speed of the auger is matched to the amount of grain it
Heavy-duty gear-motor and forged bevel gears supply power
to the hardened steel track drive wheel. In the event that
an auger encounters an obstruction in the bin, a shear pin
is built into this drive to protect mechanical components.
Track support brackets in most cases, use existing bin
bolt holes. Track is manufactured from heavy hot-rolled
steel bar. It is designed not to sag even in the wettest
Unique design of Stir-Rite allows for additional stirring auger(s) to be added at a later date. This feature means
that the Stir-Rite can grow with your operation.
Driven by a double pitch chain, the positive drive moves
all trollies back and forth in unison. A pivot arm is attached
to the outer trolley, its other end is attached to a special
link on the chain. The chain rotates around two sprockets.
The pivot are simply follows the chain reversing direction
when it goes around each sprocket. This simple drive eliminates
the need for any reversing switches. Positive chain drive
prevents the possibility of slippage and is easy to adjust.
Trolleys roll on long-life cast iron rollers. Rollers
are machined in such a way that they fit between the flanges
of the beam. This eliminates the possibility of the trolley
coming off during operation.
All electrical connections and enclosures are moisture
tight to deal with extreme conditions encountered in drying