The Sicoma twin shaft concrete mixer was designed in Italy 16 years ago, and it has been refined to give you the outstanding product that you see today. The Sicoma MAO series heavy duty concrete mixers are the most widely used twin shaft models in the world today; over 6000 in use, worldwide, in ready-mix, precast, block, paver and dam applications.
The Sicoma’s powerful compulsory spiral mixing action throws particles from each side of the mixer towards the center, where they combine; the
water is forced through powerful jets into the mix, where it is absorbed completely, allowing the cement slurry to coat all the aggregate
particles uniformly, forming the strongest concrete.
Triple Shaft Seals
Sicoma's shaft seals are effective and long lasting. While other seals pump grease through a "labyrinth" into the mixer to counteract the pressure
of the concrete entering the seal, Sicoma's shaft seal acts as a one-way valve. The pressure of the concrete, due to its level being above the
shaft, actually closes the flexible seal against the shaft. The internal cavity is filled with grease but very little escapes through the seal; its
function is only to lubricate the moving surfaces. As a result, no contamination of the mix occurs and usage of grease is a mere 650 grams per day
- 1/20th of other leading concrete mixer models. This major feature is internationally patented and is only found on Sicoma concrete mixers.
Mixing Arms
Cast from spheroidal cast iron with extra wide and strong but streamlined design to minimize buildup. Paddles are Brinell 500 Ni-hard cast iron
with greater area and thickness than most others. Collars between arms prevent material buildup on shaft and act as spacers during assembly.
Watch the Sicoma Twin Shaft Concrete Mixer in action
Gear Reducer and Bearings
The high-efficiency 2-stage design does not require a cooler, even for 24 hour 7 days a week continuous duty. Gearboxes and all bearings are oil-bath lubricated, eliminating the need for frequent greasing and its attendant maintenance hazard.
All gearboxes are guaranteed for 5 years/10,000 hours of use.
Mixing Action
The counter-rotating blades are angled at 45° to throw the mix towards the opposite side of the concrete mixer while imparting an axial motion
at the same time. The Sicoma MAO has one more set of blades on each shaft compared with most other concrete mixers of the same size,
perfecting the spiral mixing action that forces the mix to circulate in a counterclockwise direction, allowing the ISO target of 95% homogeneity to
be reached within 30 seconds and a 98.5% homogeneity in 60 seconds. The result is a faster and better mixed batch, both for regular slump
concrete and SCC.
Discharge is complete in an incredible 10 seconds (standard width door), giving a total mixing cycle time of typically 70 seconds for wet cast and
a little longer for zero slump mix. Ready-mix can be produced even faster if sand, cement and water are pre-mixed while stone is blended
through the mixer during discharge, with final mix being completed in transit. The result is better quality and higher strength concrete than with
transit mixing alone. It also prolongs the life of the mixer drum, giving major savings in fleet maintenance that far outweighs the initial expense
of the mixer.
There are no dead zones within the mixer; the vigorous motion of the mix ensures that material in the unswept area above the door is moving at
all times while eliminating segregation when using lightweight and other special aggregates and SCC mixes.
High Pressure Washout Systems for Twin Shaft Concrete Mixers
High Pressure Washout System for Twin Shaft Mixers MAO with the following characteristics and accessories:
2 Stainless Steel spray bars with High Pressure Nozzles placed above the shafts;
gear motor + toothed belt transmission and related limit switches for the rotation of the spraybars;
2 rotating collectors to be connected to the High Pressure Unit;
High Pressure Unit as follows:
for MAO 1500/1000 to MAO 7500/5000: 60 Bars Piston Pump, with 15 kW motor, 200 l reservoir with minimum, medium and maximum level, with electro valve;
for MAO 9000/6000 to MAO 12000/8000: 80 Bars Piston Pump, with 22 kW motor, 400 l reservoir with minimum, medium and maximum level, with electro valve;
Pipes for the connection between High Pressure Unit and the spray bars and hand spray gun;
Hand spray gun for the manual washout at the end of each shift.
For a Complete Brochure on Sicoma Mixers or a Quotation, please contact Gulf Atlantic at 800-792-7427 or email us at: Info@GulfAtlanticEquipment.com
For more information or to receive a quotation on Sicoma OMG products, click here
Mailing Address: P.O. Box 2169 Crystal River, FL 34423
Gear Reducer and Bearings
Toll Free:(800)792-7427 Phone:(352)628-6674 Fax:(352)628-6774