Mixing machines

Planetarium mixers or horizontal shaft for the manufacture of concrete and precast products.

250/ 3000

Mixer

litres

Planetarium

or

Horizontal

Shaft

20/90

Kw

    Mixers

    Characteristics required to design a batching plant

    The characteristics required to design a batching plant are as follows:

    • Mixer: Its size is determined by the size of the vibrocompressor.
    • Number of aggregates:According to the pieces we are going to make.
    • Loading system: In case the hoppers cannot be placed underground.
    • Quality of the pieces: It will largely depend on aggregates, their proportion and their mixing.
    • Covered hoppers: where aggregates are stored, so that if it rains it does not change the degree of humidity of the mixture.
    Performances
    •  With a high capacity gear motor.
    • Hydraulic Equipment: Gate Opening ManualCon Skip, o sin Skip cargador
    • With electronic cement scale.
    • Water distribution in the mixer.
    • Covering of screwed plate, NI- Hard function.
    • Weight from 900 Kgrs to 16,000 Kgrs  / mixer.
    • Planetarium con un satélite de 3 arms + 2 static
    • Horizontals with 8 + 2 +2 arms up to 12 + 2+2
    • Horizontals, with double axe.
      Cycles between 60 and 90 seconds.
    Models
      • Models : Planetarium types: 375- 500-750-1125-1500-2250-3000

      • Modelos :  Horizontal types: 1500-2250-3000-3750-4500

    Utility
    • A mixer serves mainly for the creation of aggregates and pieces of batching plant. Depending on the pieces we manufacture,  the number of aggregates must be taken into account.
    • The quality of the pieces will largely depend on the proportion and blending of aggregates.
    • The hoppers that store the aggregates have to be covered so that if it rains it will not filter the water and it cannot vary the degree of humidity of the mixture.
    Concrete precast pieces

    The selection of aggregates is of great importance for achieving a good quality of the final products. The objective of the manufacturer of concrete prefabricated products is to achieve a piece of the mechanical properties required by the international standards with the least amount of cement.

    The mixture has to be as homogeneous as possible, to achieve it we have to make a good dosage of aggregates and cement.

    The most important thing is the quantity of water, as it completely modifies the aggregate, and therefore also the performance of the production machine, both in the filling of the mould and in the compression of the piece.

    Aggregates

    Aggregates

    The selection of aggregates has a great importance to achieve a good quality of the final products. The objective of the manufacturer of concrete precast products is to achieve a piece of the mechanical properties required by the international standards with the least amount of cement.

    The mixture has to be as homogeneous as possible, to achieve it we have to make a good dosage of aggregates and cement.

    The most important thing is the quantity of water, as it completely modifies the aggregate, and therefore also the performance of the production machine, both in the filling of the mould and in the compression of the part.

    Characteristics of the aggregates:

    The main characteristics of aggregates are:
    • Hardness
    • Weight
    • Finishing
    • Dimensions

    These properties will be achieved if we choose good aggregates, and a good dosage between them.
    The weight of the piece should normally be the minimum, to facilitate road transport and installation on site.

    Dosage of the aggregates:

    The dosage of aggregates can be in two ways:
    By weight: we weigh the desired amount of aggregates.
    By volume: a much simpler system, we regulate the feeding time of each aggregate.

    For a good dosage we will need three hoppers with aggregates of different granulometry although the minimum advisable are two hoppers.

    The variation in the moisture content of aggregates can be an inconvenience because the unit weight varies so we must avoid that this happens.

    Classification of the aggregates

    The classification of aggregates by granulometry is:
    Fine aggregates: Grain dimensions less than 0,1 mm.
    Sands: Grain dimensions between 0,1 and 5 mm
    Gravel : Grain dimensiones between 5 mm and 8 mm

    The aggregates cannot be larger than a third of the thickness of the walls.

    Recommended mixture to obtain a good aggregate

    A recommended mixture to achieve a balance among all properties would be:

    •    45 % of medium-sized aggregate.
    •    40 % of thick aggregate.
    •    15 % of fine aggregate.

    The powder is necessary in the dosage of the aggregates to help the cement form a paste that perfectly mix all the grains. If there is no dust at all, we will have to increase the quantity of cement and water, but on the contrary, if there were a large amount of dust we would not be able to make a resistant piece.
    The quantity of powder should not exceed a weight of 5 % regarding the total quantity of the aggregates.

    What we can produce

    Are you interested in this kind of product?

    Please contact our sales team, they can answer any questions about this or other installations.

    • Manufactured aggregates with which you can manufacture slabs, fences and channels of different types and with different techniques for the creation of concrete.
    • The drying of the pieces can become as important as their manufacture, therefore, we believe that it is essential that you have a drying area for the concrete pieces in your factory
    • In this part, we will talk about the importance of humification after drying 24 hours before palletizing.
    • In this part, we offer the reasons why we believe you need a laboratory (forlab) from Rometa in your factory, advising them on what and how to do it
      Quality
      ROMETA incorporates components from leading brands known worldwide in electrical and hydraulic equipment.
      Our company is certified in accordance to standard UNE-EN ISO 9001:2015 and our facilities meet the safety requirements of European Directive EEC 2006/42 / C.

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