Coating system

We design and manufacture:

  • powder coating systems
  • liquid painting systems

designed to guarantee high finish quality, durability over time, and reduction of operating costs. Customized solutions for companies seeking reliability, efficiency, and regulatory compliance.

We design customized powder coating systems, adapted to:

  • type of workpieces
  • production volumes
  • facility layout
  • required level of automation

Every system is designed to integrate perfectly into the existing production process.

We manufacture:

  • MANUAL coating systems , ideal for flexible production
  • AUTOMATIC coating systems , for high volumes and continuous cycles

WHAT ARE POWDER COATING SYSTEMS

Powder coating systems are industrial systems that allow for the coating of metal surfaces through the electrostatic application of powder paints, subsequently cured in an oven. The result is a uniform, resistant, and durable coating, ideal for industrial production.

WHAT ARE LIQUID PAINTING SYSTEMS

Liquid painting systems are industrial systems designed to apply a layer of fluid paint on various surfaces (metal, plastic, wood). Unlike powder coating, liquid paints can offer:

  • Wide range of colors and finishes
  • Glossy, satin, or transparent effects
  • Possibility of thin layers and decorative details

WHY CHOOSE POWDER COATING

Powder coating offers concrete advantages for industrial production:

  • high aesthetic quality of the finish
  • resistance to impact, corrosion, and weathering
  • reduction of waste thanks to powder recovery
  • absence of solvents and lower environmental impact
  • compliance with environmental regulations
  • reduction of costs in the medium-to-long term

ADVANTAGES OF LIQUID PAINTING SYSTEMS

Liquid painting systems offer numerous advantages:

  • High-quality, smooth, and uniform finishes
  • Possibility of customization with different colors, effects, and thicknesses
  • Suitable for complex surfaces and particular geometries
  • Automatable processes for increased productivity
  • Compliance with environmental and safety regulations

HOW A COATING SYSTEM WORKS

A powder coating system is composed of several integrated phases:

PRE-TREATMENT TUNNEL

A pre-treatment tunnel is an automatic line designed to prepare parts before coating,

guaranteeing that surfaces are perfectly clean, degreased, and ready to receive the coating. This step is fundamental to obtaining a uniform, adherent, and long-lasting finish.

The pre-treatment tunnel is composed of multiple integrated stations, which perform in sequence

the necessary operations:

  1. Initial wash – removal of dust, chips, and processing residues from the parts.
  2. Chemical degreasing – elimination of oils, greases, and lubricants, via controlled chemical baths.
  3. Intermediate rinse – neutralization of chemical residues and preparation for subsequent treatments.
  4. Phosphating or passivation – chemical treatment to improve paint adhesion and increase corrosion resistance.
  5. Final rinse – removal of treatment residues and preparation for the coating process.
  6. Drying – parts are dried with hot air or high-efficiency systems, ready for the powder coating booth.

The process is completely automatic, with control of temperature, timing, and concentration of the chemical baths, to guarantee repeatability, safety, and constant quality.

DRYING OVEN

The drying oven is a fundamental component of pre-treatment and coating systems. It serves to dry parts quickly and uniformly after washing and rinsing, preparing the surfaces for the subsequent coating phase. Effective drying ensures optimal paint adhesion, finish quality, and production continuity.

Main operating characteristics:

  1. Controlled heating – adjustable hot air to guarantee optimal temperatures without deforming or damaging the parts.
  2. Air circulation – forced or recirculated ventilation to uniform the temperature and dry all surfaces.
  3. Adjustable residence times – the passage of parts can be calibrated based on size, material, and amount of residual moisture.
  4. Safety and monitoring systems – temperature control, protection against overheating, and emergency shut-offs.

Oven heating can occur via various energy sources, including fuels such as methane gas, LPG, or diesel, or via electric resistance banks.

Powder guns spray the coating onto the pieces by charging it electrically. The electrostatic charge attracts the powder to the metal surfaces, ensuring uniform coverage, even on edges and hard-to-reach points.

It is a fundamental component of powder coating systems, guaranteeing high-quality, resistant, and uniform finishes.

The booth is designed to contain excess powder and prevent dispersion into the environment. Suction systems and filters capture non-deposited powder, which can be recovered and reused, reducing waste and environmental impact.

The booth is equipped with certified ventilation and filtration systems, as well as control panels that allow for the regulation of pressure, airflow, and powder quantity sprayed, guaranteeing repeatability and constant quality.

Advantages of the electrostatic powder coating booth

  • Uniform and high-quality finish on the entire surface of the parts
  • Reduction of paint waste , thanks to the recovery of non-deposited powder
  • Excellent adhesion even on complex surfaces
  • Fast and automatable process , ideal for industrial production
  • Compliance with environmental and safety regulations , without the use of solvents

Booth types

  • Manual : ideal for small production runs or complex parts, allowing the operator to control the application.
  • Automatic : integrated into industrial coating lines, suitable for large volumes and continuous cycles.

LIQUID PAINTING BOOTH

Liquid painting booths are industrial systems designed to apply liquid paints on metal parts or other materials in a uniform, safe, and controlled manner. Ensuring a high-quality finish means combining precise application, controlled ventilation, and effective filtration.

The booth is equipped with a ventilation and air suction system, which allows for:

  • Transporting excess paint toward the filters.
  • Protecting parts and operators from vapors and particles.
  • Respecting safety and environmental regulations.

Ventilation also ensures a clean surface free of contamination during painting.

Coating booths are designed and manufactured in full compliance with current regulations, proposing dry abatement systems (dry spray booths) or water systems (water wash spray booths).

Coating booths are designed and manufactured:

  • With vertical or horizontal airflow, as required by current standards.
  • Emissions below permitted limits, thanks to the use of suitable abatement systems.
  • High standards in terms of quality and safety.
  • Energy savings thanks to the quality of materials used in construction and the technologies used in insulation and heating systems.

DRYING OR CURING OVEN:

We distinguish between two types of oven:

DRYING OVEN FOR LIQUID PAINTS

The drying oven for liquid paints is designed to guarantee uniform and controlled drying of liquid-painted parts, ensuring perfect, durable, and resistant finishes. The oven is a fundamental component of industrial coating systems and can be customized based on production needs and the type of paint used.

CURING OVEN FOR POWDER PAINTS

The curing oven for powder paints: after the application of the powder paint, the parts enter the oven where the powder melts and polymerizes, creating a uniform, resistant, and durable coating. This process guarantees the final quality of the finish, resistance to impact, corrosion, and chemical agents, ensuring an excellent aesthetic and functional result.

Given the importance of the curing phase in obtaining an excellent quality finish, during the design phase, our team pays particular attention to energy consumption, internal oven temperature uniformity, and the finish performance that can be achieved.

The particular construction system developed by Varco International and adopted for the construction of its ovens allows for the elimination of thermal bridges to the outside and an optimal distribution of heat inside the oven, also through the use of specific air distribution plenums and adequate internal conveyors.

Oven heating can occur via various energy sources, including fuels such as methane gas, LPG, or diesel, or via electric resistance banks.

MANUAL OR AUTOMATIC CONVEYOR LINE

The overhead conveyor is an essential transport system in industrial coating plants, designed to move parts between the different stages of processing, such as pre-treatment, coating booth, and curing oven, in a fast, safe, and efficient way. This type of transport is fundamental for optimizing production times and ensuring a continuous flow of the coating line.

The overhead conveyor consists of suspended tracks along which hooks, trolleys, or supports specifically designed for the parts to be painted run. Movement can be manual, semi-automatic, or fully automatic, and allows for the transport of parts of different sizes and weights with great precision.

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