Automatic liquid coating systems are an efficient and advanced solution. Once the parts are loaded onto the line, these plants minimise the operators’ intervention and the need for periodic maintenance. Thanks to targeted design and advanced technology, automatic liquid coating systems maximise efficiency and achieve high productivity.
Automatic liquid coating plants consist of the following machines:
Chemical pre-treatment is an essential step in the coating process: the workpieces undergo a specially designed cleaning and surface conversion cycle to ensure optimal paint adhesion.
Usually, the tunnel begins with a section devoted to hot cleaning the parts by spraying them with a detergent solution. This is followed by one or more rinsing stages to remove the cleaning solution and, if necessary, a rinse with demineralised water.
Depending on the finishing and durability requirements, the tunnel may include additional sections for applying products that chemically convert the parts’ surfaces. These chemical treatments are crucial to prepare the surface optimally, improving the adhesion and resistance of paint.
Drying quality is crucial not to nullify the effect of the pre-treatment and allow for optimal paint application. After pre-treatment, therefore, the components are fed into the drying oven – a chamber where the parts are dried after pre-treatment and before coating. Drying is achieved by the combined effect of temperature and air circulation.
The ovens designed and built by Verona Impianti 2002 have high thermal outputs because they are equipped with panels with excellent insulation performance. Our drying ovens also have heat retention systems to minimise energy consumption.
The oven can be heated either by fuels such as natural gas, LPG, or diesel, or by batteries of resistors.
The coating booth is the beating heart of the paint application process, providing high finishing quality but also a healthy work environment for operators. Verona Impianti 2002’s booths are carefully designed and equipped with specialised paint application equipment ideal for both automatic and manual liquid painting, depending on production requirements.
The booths integrated into automatic systems can have two main configurations: horizontal airflow or vertical airflow. This choice depends on the operation’s specific requirements and can affect the efficiency and quality of the coating process.
The baking oven is the chamber inside which the parts undergo the heating process necessary for the paint to polymerise. To guarantee optimum performance, our ovens are built with premium materials, have high thermal outputs, and are equipped with panels with excellent insulation performance. In addition, the baking ovens designed by Verona Impianti 2002 include heat retention systems conceived to minimise energy consumption.
As the baking phase is so important for the quality of finishes, our team pays particular attention to energy consumption, internal temperature uniformity, and finishing performance when designing these units.
The oven can be heated with various energy sources, including fuels such as methane gas, LPG, or diesel and batteries of electric heating elements.
Our automatic coating systems offer a wide range of part handling solutions, custom-designed to meet each customer’s unique production needs. We carefully consider factors such as the required output and the weight and size of the components to be coated to offer an efficient and optimised work cycle.
Available part handling solutions include:
- motorised overhead monorail conveyor
- overhead carriages with workpiece-carrying bars (“carriage” conveyor);
- overhead power & free conveyor with “storage buffers”.