COMPANY AND SERVICES

SAMI designs and manufactures industrial plants for the production of concrete and cement-treated mixes, including mobile and stationary batching plants,vertical and horizontal silos for storing and dosing powdered or granular materials, bag-breaking and big bag emptying systems, dry-mix batching plants, and dissolution units for preparing lime slurry.
The company also builds plants for the treatment and inertization of sludge and contaminated soils, engineered to ensure environmental safety and regulatory compliance.
All solutions are designed in Italy and produced through a certified European supply chain, in accordance with EU regulations and UNI EN ISO quality standards.

Yes. SAMI directly handles the installation of all supplied plants, managing every phase of mechanical, electrical, and pneumatic assembly.
All operations are carried out by qualified technicians, ensuring correct assembly and connection of every component in compliance with European safety regulations.
The goal is to ensure reduced installation times and reliable setups, with testing completed and ready for the start-up phase.

Yes. After installation, SAMI manages the start-up and functional testing of the plant, verifying the efficiency of every component as well as all automation and control systems.
During this phase, calibrations, operational tests, and safety checks are performed, and technical training is provided to the customer’s staff for proper operation and routine maintenance.
This ensures that the plant enters service with optimal performance and full regulatory compliance.

SAMI’s headquarters is located in Bibbiena (Arezzo, Tuscany).
Here you will find the technical and commercial departments, the design offices, and the operations center that coordinates production, installation, and support activities.
The headquarters serves as the core of SAMI’s organization, managing projects and supplies both in Italy and abroad, with direct quality control at every stage.

SAMI is an Italian company with a global presence, active in over 40 countries with plants installed across Europe, the Middle East, Africa, Asia, and North and South America.
Its international expansion is supported by a network of technical partners and local distributors who provide assistance, maintenance, and post-sales support.
The company manages all stages of design, production, and logistics internally, ensuring compliance with European regulations and adaptation to the requirements of each foreign market.

SAMI supplies custom-engineered plants and solutions for various industrial sectors:

  • Construction and building materials, with batching plants, vertical and horizontal silos, dosing systems, and mixing equipment for powdered and granular materials.
  • Environmental and sustainability sectors, with plants for the treatment and inertization of sludge and contaminated soils, dust-management systems, and dissolution units for the preparation of lime slurry.

All solutions are developed to reduce environmental impact and enhance operational safety.

Yes. SAMI offers an operational rental service for mobile batching plants and silos.
Rental is ideal for temporary construction sites, seasonal projects, or companies that want to reduce initial investment while maintaining operational flexibility.
All rented plants are delivered ready for use, complete with technical assistance and scheduled maintenance. For more details on post-rental services, see the FAQ dedicated to assistance and maintenance.
See "Is it better to purchase or rent a concrete batching plant?"

Yes. SAMI provides a full technical assistance and scheduled maintenance service for all its machinery: batching plants, silos, dosing and mixing systems, inertization plants, and lime-slurry preparation units.
Specialized technicians intervene both during installation and throughout the operational life of the plant, ensuring production continuity, safety, and reduced downtime.
The company also supplies original spare parts, remote support, and on-site interventions, guaranteeing consistent performance and long service life of the equipment.

All SAMI plants are designed and manufactured in compliance with European regulations on safety, quality, and environmental protection.
The company operates under a UNI EN ISO 9001–certified quality management system, ensuring controlled manufacturing processes and high standards of safety and reliability. It also holds UNI EN ISO 3834 (quality requirements for welding of metallic materials) and UNI EN ISO 1090-1 (execution and conformity of steel and aluminium structures), which guarantee construction accuracy and full traceability of components.
In addition, the company complies with UNI EN 90, certifying the adoption of integrated European procedures for quality, workplace safety, and production process efficiency, in line with the latest EU standards.

  • Machinery Directive 2006/42/EC and harmonized product standards
  • Standards on dust emissions and environmental safety

Before delivery, all plants undergo functional testing and safety inspections, with issuance of the CE Declaration of Conformity and full technical documentation.
View SAMI’s company certifications ›link

The supply process of a SAMI plant follows a structured and controlled workflow designed to ensure quality and full traceability at every stage:

  1. Technical analysis and custom design, based on the customer's needs and site constraints.
  2. Production and preliminary testing at certified European manufacturing facilities.
  3. Installation and start-up on site performed by SAMI specialized technicians.
  4. Training and post-sales support, including remote assistance and scheduled maintenance.

This integrated approach ensures efficient, compliant plants that are fully operational upon delivery.

SAMI supports the customer even after delivery, offering a complete range of post-sales services:

  • Continuous technical assistance, both remotely and on site
  • Scheduled maintenance to ensure efficiency and safety
  • Supply of original spare parts and compatible components
  • Software updates and technological retrofits for automation and supervision systems

These services ensure a longer useful life of the plant and reduce downtime costs over time.

SAMI plants are equipped with automation systems based on industrial PLCs and proprietary software for process management and monitoring. The solutions include:

  • Digital control of dosing and mixing
  • Recipe management and batch traceability
  • Intuitive HMI interfaces
  • Integration with SCADA systems and remote support for real-time diagnostics and updates

SAMI’s automation systems ensure higher productivity, reduced errors, and compliance with European quality requirements.

Each plant supplied by SAMI comes with complete technical documentation, including:

  • CE Declaration of Conformity
  • User and maintenance manual, drafted in accordance with European directives
  • Technical data sheets of the main components

All documentation is provided in Italian or English (upon request) and complies with international standards.

Delivery times vary depending on the type of product and the level of customization required.
On average, a standard plant is delivered within 8–12 weeks from the order, while custom solutions may require 12–20 weeks, including design, production, testing, and installation.
Thanks to internal planning and a well-structured logistics network, SAMI guarantees reliable schedules and on-time deliveries, even for international projects.
All SAMI services are designed to ensure operational continuity, efficiency, and compliance with European regulations.

CONCRETE BATCHING PLANTS

SAMI concrete batching plants are designed for the automated and controlled production of concrete intended for construction, infrastructure, and industrial projects.
Thanks to electronic dosing systems, automatic mixing, and digital recipe control, they ensure mixture uniformity, consistent material quality, and maximum production efficiency.
Concrete batching plants differ from cement-treated mixture plants because they produce structural materials with a higher water content and superior mechanical properties,
used in load-bearing works and reinforced concrete structures.

In a DRY concrete batching plant, the components of the concrete—aggregates, cement, water, and additives—are dosed separately and discharged directly into the truck mixer.
Mixing then takes place during transport, thanks to the rotation of the mixer drum.
This configuration is faster, simpler, and more flexible, ideal for mobile sites or small/medium production needs, where short loading times and daily adaptability are required.
All SAMI DRY plants can be supplied with PLC automation and remote supervision, ensuring flexibility and quality control.

See also: "What is the difference between a DRY  and WET batching plant?"

A WET concrete batching plant is a system in which the complete mixing of the concrete takes place inside the plant’s mixer before loading into trucks or before use on site.
This allows for precise control of mix quality, greater material homogeneity, and the ability to produce special or high-performance concretes. WET plants are ideal for
continuous production, high-capacity fixed installations, and applications requiring consistent quality and batch traceability.

See also: "What is the difference between a DRY and WET batching plant?"

A mobile concrete batching plant is a compact, transportable mixing unit designed to be installed quickly on site without the need for foundation works.
SAMI mobile plants are pre-assembled and pre-wired to minimize assembly time and ensure immediate operability.
Their compact dimensions and limited number of components make transport and handling easier, making them ideal for temporary, mobile, or short-term construction sites.
Although they offer lower production capacities compared to fixed plants, they ensure high concrete quality, dosing accuracy, and compliance with European safety and production standards.
See also: "What is the difference between a fixed and mobile plant?"

Installation times vary depending on the model and configuration of the plant. In general, SAMI mobile concrete batching plants are pre-assembled and pre-wired at the factory to ensure extremely short installation times.
In most cases, the plant can be installed and started up within a few hours, without the need for foundation works or cranes for assembly.
This solution reduces start-up costs and allows concrete production to begin quickly, ensuring maximum operational flexibility even on temporary or small construction sites.

Productivity varies depending on the model and configuration of the plant. In general, SAMI mobile concrete batching plants are designed to deliver high production even in limited spaces.
Depending on the model, they can produce from 30 to 100 m³/h of concrete, thanks to automatic dosing systems and fast mixing.
Their compact dimensions and reduced number of components facilitate transport and installation while maintaining consistent quality and optimized cycle times.

It depends on the mix designs, number of trucks per hour, pouring time window, site constraints, and degree of automation.

SAMI designs and manufactures a complete range of concrete batching plants, developed to meet every production, logistical, and regulatory requirement.
The main types include:

  • DRY plants, where materials are dosed and discharged into the truck mixer, with mixing completed during transport
  • WET plants, equipped with a mixer for full and controlled mixing of the concrete before delivery
  • Mobile plants, compact, transportable, and pre-assembled for rapid installation, ideal for temporary or mobile construction sites
  • Fixed plants, customizable and high-capacity, designed for continuous production and permanent installations

All SAMI plants can be equipped with automation systems, electronic dosing control, batch traceability, and digital recipe management, ensuring consistent concrete quality, operational safety, and compliance with European regulations.

In SAMI concrete batching plants, moisture control concerns the aggregates (sand and gravel) before they are fed into the mixer or the truck mixer.
Sensors and probes installed in the dosing systems measure the actual water content of the materials, allowing the software to automatically calculate the amount of water to be added in order to maintain the water/cement ratio specified in the mix design.
This process ensures consistent concrete quality, regardless of variations in ambient humidity or in the moisture of stored materials.
In WET plants, in specific cases, moisture probes can be installed directly inside the mixer to monitor the concrete during mixing, but this is an optional and uncommon solution, used only for special high-precision productions.

Yes. All SAMI concrete batching plants are designed and built in compliance with current European directives and standards regarding safety, quality, and environmental protection.
Each plant is CE-marked and meets the requirements of the Machinery Directive as well as standards governing the accuracy of component dosing.
The entire production process follows certified quality-control procedures, ensuring reliability, operational safety, and technical compliance across international markets.
All SAMI batching plants are designed to integrate with vertical and horizontal silos, dosing systems, and automation units, forming complete concrete production facilities.
See also:"What are SAMI concrete batching plants for cement-treated mixtures used for?"

A fixed concrete batching plant is a mixing facility designed for continuous production and high volumes of concrete.
Unlike mobile models, it is not limited by dimensional or logistical constraints and can therefore be customized and configured according to the specific needs of the construction site or production facility.
Thanks to its stable structure and greater storage and mixing capacity, a fixed plant achieves higher hourly productivity, making it ideal for long-term construction sites, industrial facilities, and large-scale production.
Like all SAMI systems, fixed concrete batching plants comply with European regulations regarding safety, dosing accuracy, and concrete quality.

See also: "What is the difference between a fixed and mobile plant?"

CEMENT-TREATED MIX PLANTS

SAMI concrete batching plants for cement-treated mixtures are designed for the controlled production of semi-dry mixes of aggregates and cement with a low water content, mainly intended for road pavements, sub-bases, and infrastructural works.
These plants ensure mixing homogeneity, moisture control, and repeatability of mix designs, guaranteeing consistent material quality in every production cycle.
Unlike concrete, cement-treated mixtures have a drier consistency and are not intended for structural elements, but for base and sub-base layers. Both technologies (concrete and cement-treated mixtures) are part of SAMI’s expertise, but they serve different construction purposes.

Concrete is a mixture composed of cement, water, sand, and aggregates, designed to achieve high mechanical strength and used primarily in load-bearing structures
and reinforced concrete works.
Cement-treated mixture, on the other hand, is made of aggregates and cement with a lower water content; it is mainly used for road sub-bases, industrial yards, and infrastructural projects.
Both materials ensure stability and durability, but concrete is suitable for structural works, while cement-treated mixture offers a cost-effective and fast solution for foundation layers and ground stabilization.
Both types (concrete and cement-treated mixtures) can be produced with dedicated and automated SAMI plants, ensuring quality and compliance with European standards.
See "What are concrete batching plants used for?"

Cement-treated mixture is used in numerous civil and infrastructural engineering works thanks to its mechanical strength, dimensional stability, and long-term durability.
It is employed in the construction of road sub-bases, industrial pavements, logistics yards, storage areas, and foundation layers for public or private works.
Thanks to its good workability and low cost, it represents an efficient solution for stabilizing soils and improving the load-bearing capacity of surfaces intended for vehicular
traffic or material storage.

SAMI cement-treated mixture plants offer numerous operational advantages compared to traditional systems:

  • Precision in dosing aggregates and cement, thanks to load cells and electronic control
  • Uniform and consistent mixing, even with materials of different particle sizes
  • Continuous production with low energy consumption and reduced cycle times
  • Integrated automation for managing mix designs and real-time monitoring
  • Ease of cleaning and maintenance, with quick access points and modular components

These features make SAMI plants ideal for high-efficiency production in full compliance with the technical standards required for infrastructure works.

Yes. All cement-treated mixture plants manufactured by SAMI are designed and built in full compliance with current European regulations on safety, quality, and environmental protection.
Each plant is CE-marked and meets the requirements set by the Machinery Directive (2006/42/EC) and the Low Voltage Directive (2014/35/EU), as well as the applicable EN standards
for weighing, dosing, and industrial automation systems.
Before delivery, every machine or plant undergoes functional testing and safety verification, with the issuance of the CE Declaration of Conformity and the corresponding technical documentation, available in multiple languages.
This attention to European regulations ensures operational reliability, operator safety, and legal compliance in every destination country.

Grain size distribution, moisture content, cement per m³, mixing uniformity.

See also "Concrete batching plants "– ideal for producing structural and high-performance concrete.

VERTICAL SILOS

SAMI vertical silos are storage structures designed to contain and dose powdered or granular materials such as cement, lime, filler, fly ash, or fine sands.
Built with high-strength steel and available in various capacities (from 15 to over 100 m³), they are equipped with automatic loading, weighing, and discharge systems that ensure precise,
safe, and clean material handling.
The vertical configuration optimizes ground space, reducing the footprint and improving the logistics of the construction site or production facility.
All SAMI models comply with European safety and CE marking regulations and can integrate dust filters, safety valves, and level sensors to ensure maximum operational reliability.

SAMI designs and manufactures a complete range of vertical silos for storing and dosing powdered or granular materials (cement, lime, filler, fine sands, fly ash).
Main configurations include:

  • Monobloc silos: compact and ready to use, ideal for temporary construction sites thanks to easy transport and installation.
  • Modular or bolted silos: assembled on-site, with capacities exceeding 100 m³, offering flexible installation and high storage volume.
  • Silos with integrated weighing systems: equipped with electronic load cells and automation for accurate dosing.
  • Silos with filtration and safety systems: complete with dust filters, overpressure valves, and level sensors, in compliance with environmental standards.

All models are built using certified steel, coated with anti-corrosion cycles, and compliant with European CE directives.

SAMI vertical silos allow the storage of powdered and granular materials for construction, industrial, and environmental applications, such as:

  • cement, lime, filler
  • fly ash, fine sands, mineral powders
  • calcium carbonate, gypsum, powdered additives
  • powders from inertization or environmental treatment processes

They are equipped with dust filters, safety valves, and electronic weighing systems, ensuring precise dosing, safety, and compliance with European regulations.

The range of SAMI vertical silos covers capacities from 15 to over 100 m³, making them suitable both for mobile construction sites and large-scale industrial plants.
Each model is designed in accordance with European CE standards and optimized to offer maximum usable capacity and structural stability, while maintaining high safety and accuracy standards.

The actual capacity varies depending on:

  • geometric dimensions (diameter and height of the silo body)
  • density of the stored material
  • shape of the discharge cone
  • presence of weighing systems

Each SAMI silo is designed to ensure the best balance between volume, stability, and operational safety.

SAMI silos are loaded using pressurized tanker trucks, which convey the powdered material through dedicated pipelines.
During loading, the integrated dust filters capture suspended particles, ensuring safe, clean operations that comply with environmental regulations.
The system is completed by safety valves that regulate internal pressure and protect the silo structure during the loading phases.

The discharge (or extraction) of materials stored inside SAMI vertical silos takes place through extraction screw conveyors, fluidization systems, or vibrating systems, all designed to ensure a constant and controlled product flow toward the downstream processing lines.
The screw conveyors, electrically driven, provide uniform feeding and reduce the risk of blockages, while the vibrators or fluidizers installed at the bottom of the silo facilitate the descent of materials with different particle sizes or a tendency to compact.
All systems can be integrated with automatic controls to synchronize discharge with production plants.

SAMI weighing systems use high-precision load cells connected to a digital control unit.
They allow real-time monitoring of stored quantities, optimization of dosing, and tracking of withdrawals, integrating seamlessly with industrial automation software.

Each silo includes safety valves for pressure management, high-efficiency dust filters, level sensors, and venting and mechanical locking systems.
Upon request, electronic monitoring systems can be installed for automatic anomaly detection and compliance with CE directives.
See also: "EUROSILO “horizontal silos” designed for mobile construction sites"

HORIZONTAL SILOS

The EUROSILO range includes:

  • Standard silos, compact and self-contained, which can be connected to batching or dosing plants. Dosing can be managed via an electronic weighing system or a time-controlled volumetric system.
  • Hook-lift silos, mounted on frames for transport with hook-lift trucks.
  • Container silos, featuring a structure designed to be stacked on top of similar units.

All EUROSILO models are designed to ensure reliability and safety in any operating context.

EUROSILO horizontal silos produced by SAMI handle a wide range of powdered and granular materials:

  • cement, lime, filler
  • fine sands, fly ash, calcium carbonate
  • gypsum, industrial additives, and powders from inertization processes

The integrated weighing and filtration systems ensure dosing precision, operational safety, and compliance with European environmental regulations.

EUROSILO silos are available with capacities from 15 to 75 m³, making them ideal for mobile construction sites and temporary projects.
Their compact structure allows for fast transport and immediate installation, while maintaining high usable capacity and structural stability.

The usable capacity varies depending on the length, width, and height of the body, the material density, the geometry of the bottom/outlet, and the presence of weighing or filtration systems.
EUROSILO models are designed to maximize usable volume while maintaining stability, safety, and transportability.

Loading is carried out by tanker trucks using pneumatic conveying. Optional dust filters reduce emissions, and safety valves regulate internal pressure during transfer.

The discharge (or extraction) of materials stored inside SAMI horizontal silos takes place through an extraction channel and screw conveyors, along with fluidization and vibrating systems that ensure a constant and controlled product flow.
All systems are designed to integrate with batching plants and automatic dosing equipment.

Load-cell weighing continuously measures the silo’s contents; the digital control unit enables precise dosing, withdrawal traceability, and integration with batching plants and automation systems.
Designed for mobile construction sites, it ensures quick setup and consistent mix formulations.

Yes. SAMI’s EUROSILO horizontal silos are designed and sized for safe transport on standard flatbed trucks, without the need for specific road approvals.
Their standard dimensions — 2,440 mm width and up to 3,000 mm height — comply with the profile limits set by European regulations, allowing fast and safe transfers between construction sites
or facilities.
Thanks to their compact structure and low center of gravity, EUROSILO silos can be loaded and unloaded using telehandlers or forklifts, without the need for cranes, reducing handling time and operating costs.
This configuration makes SAMI horizontal silos ideal for mobile or temporary construction sites, where transport practicality, safety, and immediate installation are essential.

No, normally not; a flat surface suitable for bearing the load is sufficient.

Each EUROSILO silo is equipped with safety devices designed to ensure operational protection, stability, and compliance with European regulations.
The main integrated safety systems include:

  • Safety valves to prevent overpressure
  • Dust filters to avoid dispersion during loading and unloading
  • Level sensors for continuous monitoring of the internal status
  • Electronic controls and, on request, remote monitoring for the automatic signaling of any anomalies

All safety and handling systems are designed to work together, ensuring maximum reliability during transport, installation, and operation on site.

With height restrictions or limited space, the EUROSILO horizontal silo is generally the ideal choice: it does not require foundations, is quick to install, and is easy to move.
The vertical silo is preferable when height is available and large storage capacity is needed in fixed plants.

SAMI is recognized as the first company in the world to have designed and industrialized EUROSILO horizontal silos, introducing a new standard in the storage of powdered materials.
This innovation made possible a compact, transportable, foundation-free system, now widely imitated but never matched.
See also: "SAMI vertical silos, ideal for continuous production and large storage capacities."

BAGGED AND BIG BAG MATERIAL HANDLING

The SAMI bag splitter is a system designed for the safe and fast opening of bags containing powdered or granular materials weighing from 25 to 50 kg.
Thanks to the use of Hardox or stainless steel blades and an electric vibrator that promotes material flow, it allows for complete and clean emptying, minimizing dust dispersion and operator fatigue.
All models comply with the Machinery Directive 2006/42/EC and can be integrated into dosing or mixing systems.

The SAMI big bag unloader is a modular system designed for the controlled emptying of one or more big bags and for the temporary storage of materials.
An adjustable tubular frame allows the bag to be loaded using a forklift or telehandler, supporting it throughout the entire discharge process.
The system can be equipped with stainless steel cutting blades, an electric vibrator to facilitate material flow, and dust-proof seals that prevent particle dispersion into the environment.
Depending on the version, dosing can be time-controlled or electronic via load cells, ensuring precision and automation in material transfer.
All SAMI big bag unloaders comply with the Machinery Directive 2006/42/EC and are designed to ensure safety, reliability, and operational cleanliness.

SAMI systems for handling bulk materials are suitable for powders and granules of different types and densities, including:

  • cement, lime, gypsum, fillers, mineral flours, calcium carbonate, industrial additives;
  • powders from inertization processes or environmental treatment.

Thanks to reinforced structures, wear-resistant components, and dust-tight sealing systems, these devices ensure operator safety, dosing continuity, and compliance with environmental regulations.
All models can be integrated with extraction units, screw conveyors, or mixing lines to optimize process automation.

SAMI big bag unloaders can be equipped with dust-suppression systems to ensure a clean and safe working environment.
The upper opening of the SBB models is fitted with a rubber gasket and a closing lid that prevent dust leakage during material transfer.
On request, localized extraction or filtration systems can be installed, improving air quality in loading and unloading areas and reducing the dispersion of fine particles.
These solutions ensure low-emission operations even in industrial environments with a high frequency of loading and unloading, guaranteeing cleanliness, safety, and environmental compliance.

Yes. All SAMI bag splitter and big bag unloader models comply with Machinery Directive 2006/42/EC and are equipped with mechanical and electrical safety devices, including:

  • Safety guards and protective covers in cutting or vibrating areas
  • Emergency stop buttons and quick-stop switches
  • CE-certified electrical and hydraulic components

These features ensure safe, reliable, and fully compliant operations according to European standards, protecting the operator during all loading, unloading, and maintenance phases.

INERTIZATION PLANTS

An inertization plant is an industrial system designed to treat solid or sludge-like waste through the controlled addition of hydraulic binders such as cement, lime, or specific reagent blends.
During the process, materials are dosed, mixed, and homogenized within dedicated units to obtain a stable, compact mixture. The goal is to modify the physical and chemical properties of the waste to make it non-hazardous and chemically stable, suitable for subsequent disposal or recovery stages.

A SAMI inertization plant is used to reduce the hazardousness of industrial waste and prevent its dispersion into the environment.
Through stabilization with hydraulic binders, this technology transforms sludge, powders, and process residues into inert and safe materials that comply with European regulations on waste management and environmental protection.
These plants are used in environmental treatment facilities, controlled landfills, and remediation sites, where they ensure operational safety, chemical-parameter control, and compliance with current environmental standards.

SAMI inertization plants are designed to treat solid, powdery, or sludge-based industrial waste.
They can handle wastewater treatment sludge, industrial filter dust, combustion residues, contaminated soils, and production waste containing hazardous substances.
Each plant is custom-designed according to the chemical and physical characteristics of the materials and current environmental regulations, ensuring safety, compliance, and reduced environmental impact.

See also: "Dissolution plants by SAMI for the preparation of milk of lime"

DISSOLUTION PLANTS

A dissolution plant is an automated industrial system designed to mix and dissolve powdered or granular materials in water, producing homogeneous suspensions ready for use in production or
environmental processes.
In SAMI dissolution plants, the process is fully controlled: the powder (such as hydrated lime, calcium carbonate, or other reagents) is dosed and dispersed in water with mechanical agitation or forced recirculation until complete dissolution is achieved.
The result is a stable solution or suspension—such as lime slurry—used in construction, industrial, and environmental applications (water treatment, soil stabilization, effluent neutralization).
SAMI DSL plants ensure precise dosing, consistent concentrations, and operational safety, reducing waste and guaranteeing produc

A SAMI dissolution plant is used to prepare homogeneous suspensions of powdered materials in water, such as lime slurry, employed in industrial, environmental, and civil applications. Its main function is to automate the dissolution process, ensuring precise dosing, constant concentrations, and uniform quality of the final product.
SAMI dissolution plants are used in several fields:

  • Wastewater and potable water treatment, for neutralization and pH regulation
  • Soil stabilization and construction mixes, through controlled addition of lime slurry
  • Industrial chemical and environmental processes requiring reactive or corrective suspensions

Thanks to automated control of dosing and agitation, these plants ensure operational efficiency, reduced waste, and maximum safety for operators.

Milk of lime is an aqueous suspension of calcium hydroxide (Ca(OH)₂), obtained by mixing hydrated lime and water in controlled proportions.
It appears as a white, opaque liquid and is used in numerous industrial, environmental, and agricultural processes thanks to its neutralizing, flocculating, and stabilizing properties.
It is commonly employed in wastewater and drinking water treatment, in the stabilization of soils and industrial waste, in chemical processes for pH control, and in agricultural applications to
correct soil acidity.
Thanks to its versatility, milk of lime is widely used in the environmental, construction, and chemical sectors.

SAMI dissolution plants produce milk of lime in an automatic, continuous, and controlled way, ensuring consistent quality and operational safety.
The process takes place inside a closed dissolution system in which water and lime powder are precisely dosed and mixed by mechanical agitators or hydraulic recirculation until a homogeneous
suspension with the desired concentration is obtained.
SAMI plants are equipped with dust extraction and filtration systems, electronic dosing units, and automatic controls for level and concentration, ensuring production efficiency, reduced waste, and
environmental protection.

Milk of lime is used in numerous industrial and environmental sectors thanks to its neutralizing, stabilizing, and corrective properties.
It is employed in wastewater and drinking water treatment to regulate pH and remove impurities, in construction for soil stabilization and the preparation of binding mixes, and in agriculture to correct soil acidity.
It is also used in chemical and metallurgical processes to neutralize acidic effluents, and in the environmental sector for contaminated site remediation and reducing pollutant emissions.

Milk of lime produced with SAMI DSL plants is used across numerous industrial, environmental, and civil sectors thanks to its neutralizing, stabilizing, and flocculating properties.
The main applications include:

  • Wastewater and drinking water treatment, where milk of lime is used to regulate pH, precipitate heavy metals, and neutralize acids.
  • Stabilization of sludge and contaminated soils, making materials chemically stable and non-hazardous.
  • Production of mortars, mixes, and hydraulic binders in the construction and infrastructure sectors.
  • Industrial chemical processes (paper, sugar, steel), where it is used as a corrective reagent.
  • Agricultural applications, to correct soil acidity and improve nutrient availability.

Thanks to automated production, SAMI plants deliver homogeneous, consistent-quality milk of lime, ensuring operational efficiency, environmental safety, and reduced management costs.

SAMI dissolution plants allow the automatic preparation of milk of lime with concentrations ranging from 3% to 15%, depending on process requirements.
Production can be carried out in continuous or batch mode, ensuring consistent mixture quality and precise dosing of all components.
This flexibility makes it possible to adapt the density and reactivity of the milk of lime to different industrial applications, such as water treatment, chemical neutralization, or soil stabilization.

Automated production of milk of lime using SAMI dissolution plants offers numerous advantages over traditional manual methods, ensuring greater efficiency, precision,
and safety.
The main benefits include:

  • Precise dosing of water and lime, thanks to electronic control systems that guarantee constant concentrations and repeatable recipes.
  • Homogeneous and continuous mixing, achieved through controlled agitation or recirculation, preventing deposits or lumps.
  • Reduced material waste and energy consumption, as the process automatically adjusts to the required quantity.
  • Improved operational safety, with closed dissolution circuits and dust-extraction systems that eliminate the risk of airborne dispersion.
  • Process monitoring and traceability, with production data logging and optional integration with supervision or SCADA systems.

In summary, SAMI’s automated technology ensures consistent product quality, lower operating costs, and full compliance with environmental and safety regulations.

See also: “Inertization plants” by SAMI for the stabilization of sludge and contaminated soils

COMPARISONS AND CHOICES

The main difference concerns where the concrete is mixed:

  • DRY plants: mixing takes place inside the truck mixer during transport.
  • WET plants: mixing takes place directly inside the plant’s mixer.

DRY plants are faster and more flexible, ideal for temporary or small-scale construction sites.
WET plants provide greater control, homogeneity, and consistent quality, making them suitable for intensive or continuous production.
Both technologies can be automated and digitally managed with SAMI control systems, ensuring dosing precision and compliance with European standards.

See also:
SAMI WET and DRY concrete batching plants for concrete production

The main difference concerns structure, mobility, and production capacity.
A fixed plant is designed for continuous production and offers greater capacity, stability, and customization options.
A mobile plant is more compact, easy to transport, and quick to install.
Mobile plants have fewer components and smaller dimensions, making transport easier but reducing hourly productivity.
Fixed plants, thanks to their permanent structure, achieve higher production volumes and can be tailored to specific operational requirements.
Both solutions ensure high-quality concrete, precise dosing, and full compliance with European regulations.
All SAMI plants, fixed or mobile, can be customized and automated to guarantee high performance and CE conformity.

See also:SAMI fixed and mobile concrete batching plants for concrete production

The choice between purchasing and renting a SAMI concrete batching plant depends mainly on project duration, production intensity, operational continuity, and available budget.
Purchasing is recommended for continuous production or long-term construction sites, where owning a customizable and always-available plant is advantageous.
In these cases, the initial investment is amortized over time and the plant becomes a permanent component of the company’s production workflow.
Renting is ideal for temporary sites, seasonal work, or short-term projects, as it reduces initial financial commitment and provides maximum operational flexibility.
SAMI rental plants—including batching plants, silos, and dosing systems—are supplied ready for use, with full technical assistance and scheduled maintenance for the entire rental period.
In summary, renting is convenient when production is short-term or requires rapid installation, while purchasing is the best option for frequent use, continuous projects, and customization needs.
In both cases, SAMI provides certified, efficient plants compliant with European regulations, supported by complete technical service.

See also: Company and Services section to learn more about SAMI operational rental solutions.

Vertical silos: large storage capacities with a reduced footprint; ideal for fixed plants and continuous production.
Horizontal silos (EUROSILO): compact, transportable, and installable without foundations; perfect for temporary sites or locations with height restrictions.
Both configurations include electronic weighing systems, dust filters, and safety devices, in full compliance with European standards.
Discover all details about SAMI vertical silos:Link
Discover all details about SAMI horizontal silos:Link