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The FlexiClean mixer family from Aran has a heritage of decades of
uncompromised performance across all continents. Experience
gained from mixing a wide diversity of material types in demanding conditions has resulted
in a mixer of clever design which typifies Aran products.
Aran FlexiClean is the most advanced Aran mixer yet.
FLEXICLEAN MIXER.
The mixer has hinged and flexible heavy rubber side walls.
It is first lined with sand. This
forms the wear surface. Only the crust nearest
the mixing zone is hardened by cement. When
the doors are opened by hydraulic cylinders, the lining material easily falls away. The mixer has a rubber belt floor which removes
cleaned material and disposes of it through the normal discharge opening.
LOW OPERATING COST.
These "ultra convenience" mixers have internal surfaces of rubber and low
adhesion UHMW polyethylene which are not abraded in normal operation. There are no expensive liners to replace. The only wear parts are the mixing faces.
DESIGNED FOR MAXIMUM AVAILABILITY.
The worst enemy of mixers handling materials such as concrete and cemented paste fill is
ingress of abrasive fine paste to the bearings and drive components.
Unique Aran housings for all mixer bearings keep lubricant in, and contaminants out. Seals and bearings are separated from the mixing
zones by air gaps and flingers.
EASY FIX MIXER.
The Aran mixer drive train is the easiest yet to service.
Direct access to the bearings allows rapid change if required.
MIXING ELEMENTS.
The number and configuration of the mixing elements is varied to suit different
applications. Mixing elements are arranged in
interleaving planes with an helix reversing in 60 degree increments along each shaft. In each plane there are four blades, two on each
shaft.
The standard Aran design uses round arms welded to the shaft with reversible heat treated
high Chrome 194 mm x 140 mm blades, 25 mm thick.
76 mixing faces standard.
120 mixing blades for pastes and slurries
Other combinations are available for special applications.
DISCHARGE ARRANGEMENT.
Aran FlexiClean mixers can be configured to deliver to an inclined conveyor, to discharge
to a vertical chute or surry/paste hopper
APPLICATIONS.
Aran FlexiClean mixers are most widely used integrated with Aran mixing plants. The mixer forms part of a total system of which the
feed metering system is an integral and critical part.
Correctly applied they are well suited to;
- High quality paving concrete.
- Lean mix sub base concrete.
- Structural concrete.
- Roller Compacted Concrete (RCC) for dams and pavements.
- Stabilized road base.
- Backfill for mines (pastes, slurries and CAF). * Paste mixers include a weir for
retention of material within the mixing chamber
- Land fill Liners from soil or clay mixed with bentonite.
- Solidification of sludges.
- Mixing of contaminated soils.
- Recycled concrete or asphalt with both bitumen emulsion and foam bitumen.
Any granular or fine material can be mixed with both particulate and liquid binders in an
Aran FlexiClean mixer. Contact Aran for
specific recommendations.
THROUGH MIXING..THE CONCEPT.
A "through (or continuous) mixer" is quite different in operation from a batch
mixer. A batch mixer is called upon
firstly to uniformly disperse disparate ingredients from different zones of the mixer and
then to finely divide them into a homogeneous mass. We
call the former "macro mixing", and the latter "micro mixing". The time taken depends upon the size of the batch,
and the frequency of mixing interactions in different batch mixer types.
"Through mixers" work on the presumption that the ingredients are all correctly
proportioned one to the other by the metering system before they enter the mixer and are
in effect "ribbon fed". The
"through mixer" has only a modest task of "macro mixing", and can
devote most of the mixing effort to "micro mixing".
"Minimum Mixing Time" is a common constraint applied to batch mixers to ensure
adequate macro and micro mixing. Retention
time in a through mixer is a function of mixer speed, material type, the number of mixing
elements and the way in which they interact. A
higher speed mixer with a shorter transit time may produce a superior result to a slower
mixer with a longer transit time. Mixing
effectiveness is a result of the number and nature of the mixing interactions.
Aran designers have studied these interactions and collated results to deliver mixers
which are optimized for the materials to be mixed.
Aran "High Intensity" mixers have greater power, run faster, mix more intensely,
and have greater output for their size than other types.
 TWO SIZES IN TWO LENGTHS.
For some applications such as the addition of water, lime, or cement to crushed gravel for
road base, short series FlexiClean mixers are adequate.
Short series mixers consume less power.
For all other applications where mixing intensity is crucial, FlexiClean Long series
mixers are standard.
The larger FlexiClean 610 has 610 mm shaft centres, FlexiClean 480 has 480 mm shaft
centres. In other respects they are similar.
DRIVE OPTIONS.
Aran FlexiClean mixers are available with both electric and hydraulic drives.
The power required depends upon the material type and throughput.
Mechanical gear reducers are available in both shaft mount and foot mount configurations,
with or without fluid couplings.
ELECTRIC POWER COMBINATIONS.
FlexiClean 480S & FlexiClean 480L
Standard, 90 kW single drive.
Optional; 75, 110, & 132 kW single drive.
FlexiClean 610S & FlexiClean 610L
Standard, 150 kW single drive.
Optional; 75, 90, 110, & 132 kW single drive.
Optional; 150, & 180 kW in dual drive.
Hydraulic Drives are available with both foot mounted radial piston motors and and shaft
mounted radial piston wheel type motors. (Hydraulic
drives are used in mobile mixer applications.)
Production capacities: 50 - 500 cubic meters per hour.
GENERAL DIMENSIONS.
Mixing Chamber Length; Long Series: 4,075 mm, Short Series: 3,440 mm.
Blade Sweep Radius; FlexiClean 610; 367 mm, FlexiClean 480: 329 mm.
Shaft diameter; 180 mm (hollow core)
Bearing diameters; Drive end; 150 mm, Discharge end 90 mm or 130 mm.
For installation dimensions, request a planning in drawing to suit the application.
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ARAN GROUP 