• HOLDING HOPPERS
• CEMENT SCALES
• WATER SCALES
• WATER FLOWMETERS
• LIQUID CHEMICAL DISPENSERS

Capacity: 20 – 50 liter / Flowrate 10 – 40 liter/min

POWDER (CHEMICALS/COLORS) DISPENSER
Capacity: 50 liter / Flowrate: 5 – 30 liter/min

STEEL FIBRE DISPENSERS
Three models from 8 to 120 kg/min

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Electromechanical motion Travelling Bucket with Double Clamshell Gate operated by hydraulic power pack, with On Board Control System.

Electromechanical motion Travelling Bucket with Single  Clamshell Gate operated by hydraulic power pack.

Electromechanical motion Travelling Bucket with Sliding Gate operated by hydraulic power pack.

Electromechanical motion Travelling Bucket with Double Clamshell Gate operated by hydraulic power pack. Slim design for reduced width.

Concrete hopper handled by crane or fork-lift, pneumatically operated with air tank.

Concrete hopper handled by crane or fork-lift, pneumatically operated with air tank.

Overhead Travelling Bucket with Rotating/Shifting  Extraction Belt.

Overhead Crane with Travelling Bucket.

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MIXING TANK

All Sicoma Turbine mixers can be shipped in standard open top containers or trucks due to the fact that the tank can be separated into two or more bolted segments. Re assembly on site is simple and quick as the segments are located on positioning pins and then bolted together. The tank walls and floor are lined in wear resistant steel plates.
Under request, they can be lined with Ni-Hard plates.

MIXING ARM SPRING SYSTEM

All the mixing arms are connected to the rotating drive system with spring shock absorbers operated by cams. This system absorbs any shock loads caused by the mix blades hitting obstructions and protects the drive gearbox. It also allows easy adjustment of the mix blades clearance to the tank floor.

AGITATOR AND DISCHARGE ACCELERATOR SYSTEM

SICOMA Turbine mixers can be fitted with one or twin rotating agitator systems to increase mixing efficiency and to reduce the mix cycle time. A special discharge blade can further reduce the total mixing cycle time.

DISCHARGE DOOR

All Sicoma Turbine mixers can be shipped in standard open top containers or trucks due to the fact that the tank can be separated into two or more bolted segments. Re assembly on site is simple and quick as the segments are located on positioning pins and then bolted together. The tank walls and floor are lined in wear resistant steel plates.
Under request, they can be lined with Ni-Hard plates.

HIGH PRESSURE WASHOUT

Two high pressure rotating stainless steel spray bars with adjustable spray nozzles fixed to the drive turret wash the mixer floor very thoroughly and a further two fixed bars wash the arms and mixing paddles as they rotate,
as well as the pan walls.

ACCESSORIES

All Sicoma turbine mixers have a range of optional accessories available, these include aggregate skip hoists, cement weigh hoppers, water weighing systems, dust reducing airbags, high pressure wash systems, accelerated discharge blades and multiple discharge doors. All accessories are pre-assembled in the factory to guarantee minimum assembly time on site.

EXPERIENCE AND KNOW HOW

SICOMA have been producing Turbine ( Pan ) mixers for more than 30 years, utilising the expertise gained by the parent company OMG in the production of planetary mixers for the past 50 years. The know how from the planetary mixer production was the basis for the high quality and up to date design and production methods used for the Sicoma Turbine mixers.

CONSTANT IMPROVEMENT OF DESIGN AND MANUFACTURING

SICOMA customers will always benefit from the continuing development of our products and the standardisation we build in to our turbine mixers making the build and maintenance of the mixer simple and reliable with excellent standardized parts backup.

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EXTRA-RIGID TANK

The stiffened frame of the tank eliminates the risk of deformation during the full load operation and guarantees the correct planarity of the shafts’ seals.

SHAFT SUPPORTS AND SEALS

The modular support patented by SICOMA is made with two separate housings. The bearing is lubricated in long lasting oil bath. The seal, realised with the exclusive system of the counter-rotating disks, is lubricated with liquid grease using an automatic pump. The stiffened frame of the tank eliminates the risk of deformation during the full load operation and guarantees the correct planarity of the shafts’ seals.

MIXING PADDLES

They are in antiwear steel 20mm thick and are bolted to the shafts.

3-D MODELLING

All MAO/C Mixers are designed and constantly improved with the use of three-dimensional modeling softwares.

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LOADING OPENING

RADIANT PLATES (OPTIONAL on BASIC)

TIP LIMIT SWITCH

TANK DETAIL DURING THE UNLOADING PHASE

ELECTRIC PANEL (OPTIONAL on BASIC)

TANK LIFTING GROUP

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The size of SICOMA Twin Shaft Mixers ranges from 0.5 to 9 m3 of vibrated concrete output, covering every need of our customers in terms of production capacity. The excellent performance is recognized in several applications: production of Readymix Concrete, production of prestressed / precast elements, RCC concrete for dams, soil stabilization, but also in different sectors such as the inertization, waste treatment and chemical products. Depending on the type of application, the mixers can be equipped with several accessories and options to optimize their productivity, mixing quality and life expectancy. Whenever necessary, we work with our customers to develop new solutions that best suit their requirements.

GEARBOXES

The gearboxes of the mixing group are epicyclical type. The first reduction is carried out by a pulley transmission equipped with a constant-velocity universal joint to keep the shafts syncronised. The low input speed to the gearboxes allows the lubrication oil to work at low thermal load. The connection between the gearbox and the tank is made with the exclusive connection sleeve, developed over the years to make any possible maintenance to the shaft supports easier and faster. This sleeve can be disassembled easily giving access to shaft support and in case of maintenance, the downtime for the plant is minimized.

MIXING ELEMENTS

The mixer tank is lined with Ni-Hard Cast Iron of 530HB minimum hardness. The mixing arms, with a low profile to avoid material build up, are made in Spheroidal Cast Iron. The mixing blades are made in Ni-Hard Cast Iron of 530HB minimum hardness. The large number of blades, their position and their orientation guarantee the right combination between the effects of rolling and circulation of the material during the mixing action.

EXTRA-RIGID TANK

The stiffened frame of the tank eliminates the risk of deformation during the transport (also in container) as well as during the full load operation and guarantees the correct planarity of the shafts’ seals. The metal frame for aggregates hopper and the scales can be laid right on the mixer without additional supports.

HYDRAULIC POWER PACK

The closing of the door is guaranteed by the pressure sensor included in the hydraulic circuit. In case of failure or blackout, a manual pump can be operated for the emergency discharge and closure.

DISCHARGE DOOR

The discharge door has a rubber seal that runs along its full perimetre. The eccentric rotation of the door sector guarantees that the rubber seal is always reached and compressed despite its wear and tear.

SHAFT SUPPORTS AND SEALS

The modular support patented by SICOMA is made with two separate housings. The bearing is lubricated in long lasting oil bath. The seal, based on the exclusive system of the counter-rotating disks, is lubricated with liquid grease under controlled pressure.

AUTOMATIC LUBRICATION

The grease needed by the seal to keep the counter-rotating disks lubricated, is provided by temporized pump to the progressive dispenser which uniformly distributes the necessary quantity of grease (6 g/h) to each seal.
A high efficiency filter removes possible impurities when the grease tank is refilled through its proper connector.

ALARM BOX

The mixer is equipped with several sensors: thermal sensors for the motors and for the gearboxes, level gauges for the oil of the geaboxes and for the hydraulic power pack, level and pressure sensors for the automatic lubrication system. Upon request, Sicoma can supply the Black Box, an electronic system that records type, number and duration of possible anomalies and alarms during the operation of the mixer. The same device can be programmed for the preventive maintenance.

TOP COVER & INSPECTION PLATFORM

The high top cover (500mm) is equipped with two hinged hatches and does not have any post. It allows an easy access to the mixer for an accurate cleaning at the end of the shift or for both preventive and unscheduled maintenance resulting in a shorter shutdown of the plant.
The inspection platform with stairs, included in the supply, is absolutely necessary for the safe inspection and maintenance of the mixer. Its effective modular design allows the installation to be extremely easy wihtout the need of any crane or winch.

OPTIONS

SWING OUT DRIVES (SWOD Option)

This unique option for SICOMA Twin Shaft Mixers was developed over the last years to make any maintenance to the shaft supports easier and faster . The full drive assembly (Motor, Pulleys and Gearbox) is hinged to the side of the mixer tank and it can be swung out easily without the need of cranes or any lifting device.
In case of unplanned maintenance, the downtime for the plant is minimized, resulting in a extremely low maintenance cost.

SKIP HOIST

The loading skip for the aggregates is available for the MAO mixers up to the size 6000/4000. The hoist has two grooved drums on the same shaft.
The skip cable has an anti free-fall block in case of cable failure while two limit switches constantly check its tension.
Upon request, the double speed for ascent and descent is available, as well as an inverter based controller to customize speed at its best.

BATCH FEEDING SYSTEM

Due to the particular reinforced structure, SICOMA Twin Shaft Mixers can be equipped with a Batch Feeding System stacked on the tank using the top fixing plates on the tank frame. This system is composed by Aggregates Holding Hopper, Cement Scale, Water Scale and Air Bag. Being everything preassembled at the factory before the shipment, the installation time at the jobsite is extremely short.

HIGH PRESSURE WASHOUT

Two high pressure water pipes are placed above the shafts with as many nozzles as the number of arms. These spray bars are operated by a gearmotor and rotate so that the jets reach every spot for an effective cleaning. The washout has to be carried out at the end of each mixing cycle and the waste water is used for the next mixing.

SLOW MOTION DRIVE

This option is based on an auxiliary motor which can rotate the shafts at low speed (1 RPM). By using a button switch, the shafts can run safely also with the inspection doors open. The cleaning as well as the regular maintenance (such as periodic blade adjustment) are simplified and faster. We recommend to choose the Manual Control Panel including all devices to operate the Slow Motion Drive.

HIGH PRESSURE WATER UNIT

With a reservoir of minumim 200 liters, the High Pressure Water Unit supplies the spraybars installed in the mixers using a piston pump driven by a motor with minimum power of 15 kW. The pressure and flowrate are selected depending on the mixer size (min 60 Bar).

MANUAL CONTROL PANEL

The mixer can be equipped with the Manual Control Panel which can operate the mixer in Manual Mode with the following buttons: Start/Stop of the mixer motors, Open/Close Discharge Door and Emergency Stop. This Panel can also operate the Slow Motion Drive, if present.

REDUCED DISCHARGE DOOR

The reduced size of the discharge door allows the use of a small discharge chute. As a consequence, the supporting structure of the mixer can be shorter compared with the standard twin shaft mixers.

DOUBLE DISCHARGE DOOR

The mixer can be equipped with two independent discharge doors to pour the concrete in two different places. One of the limitations of the twin shaft mixers is then overcome.

BOMB BAY DOOR

All SICOMA Twin Shaft Mixers can be equipped with the Bomb Bay Door which allows the bottom of the mixer tank to be opened for nearly half of its surface. The discharge is extremely fast also in case of low slump concrete.
This option is particularly important in case of RCC production and loading on dump trucks.

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WIDE RANGE OF MIXERS & CUSTOMIZED SOLUTIONS

The size of our Planetary Mixers ranges from 10 to 4000 liters of compacted concrete output, covering every possible need from small laboratory mixers to the largest production plants. The excellent performance of SICOMA-OMG Planetary Mixers are recognized in several application fields: readymix concrete, production of prestressed / precast elements, block and pavers, concrete pipes, dry mortar mix, but also in different sectors such as glass, refractory materials for foundries and chemical products. Depending on the type of application, the mixers can be equipped with several accessories and options to optimize their productivity, mixing quality and life expectancy. Whenever necessary, we work with our customers in the development of new solutions that best suit their specific needs.

GEARBOX

With 70 years of mechanical experience, Sicoma has created a gearbox virtually indestructible. The huge double horizontal design is strong and shock resistant. The wide horizontal oil bath is cool running and gives every gear optimum lubrication. It is good for life and carries a 5 year, 10,000 hour warranty.

MIXING BLADES

Complete the mixing action and give fast discharge. Cast from Ni-hard iron, 550 HB minimum, for extreme wear resistance. Outer edges are thickened to equalize wear and the angle of attack is optimized to push, not slice, to maximize both mixing and blade life.

MIXING ARMS

SICOMA’s mixing action starts with the arms, which are responsible for most of the mixing, from top to bottom. Three cast iron arms per star, two stars starting from MP 1875/1250 and three stars for MP 4500/3000 and MP6000/4000. Together with two hardened steel scraping arms they are the best for toughness plus abrasion resistance. Adjustment slots allow easy blade adjustment to compensate for wear.

LINER PLATES

15 mm Ni-hard cast iron tiles give many times the life of abrasion resistant steel liner plates, reducing lifetime cost. Bolted assembly makes replacement a simple task; in addition, the wall plates are reversible to increase life even further. Additionally, tight fabrication tolerances mean that blades can be adjusted close to walls and floor for perfect cleanout between batches, ensuring the best performance on coloured products.

HYDRAULIC POWER PACK

It has plenty of capacity to operate doors reliably in even the largest mixer. Manual lever allows the door dual use, to be opened during power loss and to be closed right after.

DISCHARGE

SICOMA’s mixing action starts with the arms, which are responsible for most of the mixing, from top to bottom. Three cast iron arms per star, two stars starting from MP 1875/1250 and three stars for MP 4500/3000 and MP6000/4000. Together with two hardened steel scraping arms they are the best for toughness plus abrasion resistance. Adjustment slots allow easy blade adjustment to compensate for wear.

HALF-MOON COVER

15 mm Ni-hard cast iron tiles give many times the life of abrasion resistant steel liner plates, reducing lifetime cost. Bolted assembly makes replacement a simple task; in addition, the wall plates are reversible to increase life even further. Additionally, tight fabrication tolerances mean that blades can be adjusted close to walls and floor for perfect cleanout between batches, ensuring the best performance on coloured products.

OPTIONS

SKIP FOR AGGREGATE LOADING

Skip hoist is available for all sizes of MP mixers. The Twin Drum hoist equalizes the load and prevents the skip bucket from falling in case of cable failure. Slack cable detectors also give the most reliable and safe operation.

CEMENT AND WATER SCALES

All MP mixers can be equipped with the weighing hoppers for Cement and Water. They are fixed to the mixer tank and preassembled in the factory to minimize the erection time of the plant at the jobsite.

WATER FLOWMETER

As an alternative to the water scale, water can be measured by a flowmeter.
In some applications it is basically used for the moisture correction of the batch in conjunction with a moisture probe.

AGGREGATE HOLDING HOPPER

This accessory is strongly recommended to allow the mixer to reach its nominal productivity.
Preassembled in the factory, it is equipped with an OMG Sicoma butterfly valve driven by the hydraulic power pack of the mixer.

BOTOMATIC DISCHARGE DOOR

For slurry / bitumen mixtures and for powder blending, the use of the special “botomatic” door makes the tank perfectly leakage proof. This is particularly critical when the tank is pressurized (due to gas injection) or de-pressurized.

SIDE ACCESS DOOR

Whenever the access from the top cover to the tank is impossible or too difficult, the side access door is the right solution. This option is also recommended for special mixtures in order to improve the cleaning of the tank.

HIGH SPEED AGITATOR

The function of this additional device depends on the type of mixture, speed and blade configuration. For dry mix, it increases the dispersion of the materials whereas for low water mixtures it crushes the possible lumps generated by the mixing.

HIGH PRESSURE WASHING SYSTEM

Using the unique feature of the hollow shaft of the OMG Gearbox, the high pressure pipe reaches the center of the machine allowing the washout jets to be mounted under the scraping arms. All nozzles are adjustable to cover all spots for a high efficiency cleaning.

DUST COLLECTOR AIRBAG

During the aggregate loading into the mixer from a holding hopper, the Dust Collector Bag absorbs the air shock generated by the fast inrush of the material. The function of the airbag is very important for dust containment, in conjunction with an active filter.

FLOOR MOUNTED MOISTURE PROBE

The production of high quality concrete usually requires a moisture measurement in the mixer, in order to control the water content in the mix. Upon request, all Planetary Mixers can be equipped with moisture probes installed at the floor level.

PROBE CLEANING BLADE

In case a floor mounted probe is installed, we recommend using a rubber cleaning blade which cleans the surface of the sensor at every rotation of the planetary gearbox, improving the quality of the measurement.

ROTATING MOISTURE PROBE

Due to the hollow main shaft (unique feature of OMG Gearbox), MP Mixers can be equipped with a moisture probe which is fixed to the scraping arm and rotating into the mixture. The probe cables are connected to the control system through a rotating collector.

HYDRAULIC SAMPLING BOX

All Planetary mixers can be equipped with a sampling box to take samples of material before the discharge, typically used to prepare test cubes. The operator can collect the sample easily and safely without stopping the mixer and opening the top cover.

BELT TRANSMISSION

In case the mixer must be installed in a plant with a reduced height dimension, it is possible to install the mixer motor at the side of the tank and to use a belt transmission between the motor and the gearbox. This solution is typically used for retrofits or mobile plants.

MANUAL CONTROL PANEL

Mounts on the mixer, allowing major mixer functions to be controlled locally to make cleanout, testing and maintenance easier.

DISCHARGE DOOR SAFETY GUARD

When the service platform of the mixer is installed under the discharge door, it is necessary to use a protection guard to keep the operators safe during the rotation of the door sector. This safety guard can also be dust proof when the mixer works with dry mixes.

HYDRAULIC COUPLING

Gives long service life by reducing the high mechanical stress in conditions such as repeated startup with a full load.

STAINLESS STEEL TANK AND MIXING TOOLS

Whenever the material to be mixed must be contamination free or when the ingredients are chemically aggressive, it is recommended to use special materials (such as Stainless Steel) for the lining of the pan and for the mixing tools.

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