Grinding and Classification

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Grinding and Classification

For 80 years we have been designing and manufacturing complete plants and equipment for solid grinding and classification.

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We are specialists in the design, manufacturing and commissioning of grinding plants. Our know-how, innovation and reliability are a guarantee of a high quality product.
ANIVI has supplied a large number of ball mills for different types of products, which allows to deliver a high quality product thanks to the experience accumulated over 80 years.The inquiries received are studied by our Engineer Team and  Technical Office, who contrast information with our historical files and previous projects. It is the historical data that allows us to guarantee the best solution for our clients.

In addition, if required we have our research laboratory, where tests are carried out on equipment with different analysis systems.

Depending on the type of product to be treated, ANIVI offers different types of solutions:

Grinding and Classification
Grinding and Classification

Solutions by Product Type

Non Abrasive
For grinding semi-hard and non-abrasive materials, we recommend the ROLLER MILL.

Its usual application is for grinding of semi-hard and non-abrasive minerals, to fineness between 25 and 150 microns.

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Automatic Feeding

Emissions Control

Instant Fineness Changes

Simultaneous Drying and Grinding

ANIVI proposes a continuous and dry process composed of an automatically feed ball mill together with an ANIVI-STURTEVANT classifier.
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World leaders

ANIVI has supplied a large number of facilities of this type, which allows them to be considered world leaders in this technology.

Fineness instant Changes

Fineness changes are made from the control panel without having to stop the installation.

Environmental control

The work environment is completely clean, ensured by a capture system through automatic cleaning bag filters.

The experience accumulated in this field continues to advise that systems based on Ball Mills are the most efficient and economical, and where products with a greater specific surface area are obtained, an aspect of great importance in various sectors.
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Very High Fineness Products

Instant Fineness Change

The fineness change is remotely carried out from the control panel, immediately and without the need to stop the plant operation.

Environmental control

Emissions control is performed as almost the entire grinding process is carried out under negative pressure, preventing dust from going outside. However, the entire installation is efficiently filtered by means of a state-of-the-art bag filter.


Particle separators

ANIVI’s range of separators ranges from 3 micron classification to de-dusting of coarse products. Being able to work integrated in an air circuit or as a compact and independent machine.
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Easy to use

ANIVI classifiers are solid, compact and simple to use.

Low maintenance cost

ANIVI classifiers require little maintenance due to their quality.

Safety and Accuracy

ANIVI classifiers are safe with great cutting precision and high efficiency.


Coating Plants

The ultrafine product obtained at ANIVI coating plants allows modifying the surface behavior of ultrafine minerals.

At ANIVI we have several types of Plants for productions of between 1 and 3 tons per hour.

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Multistage Design

Non-agglomeration – Coating – Non-agglomeration.

Heat self-generation

Self-generation of the necessary heat at the coating chamber. The required temperature is always maintained.

Simple and economic maintenance

It is a unique design for this application and allows rotor partial repairs.

Advantages of choosing ANIVI

Turnkey plants

ANIVI designs, manufactures and installs treatment plants, with the best available technology, providing solutions to the client requirements.

Customized solutions

ANIVI facilities are adapted to customer specifications. The solution design is always adapted to the circumstances of each client.

High performance

ANIVI’s experience in technologies and their staff capacity ensure high-performance solutions and a long useful life.


At ANIVI we make maintenance services available to clients to attend any incident that might arise in our equipment, always offering the best assistance in the shortest time possible.

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