A curing oven is essential to complete the curing reaction that promotes the cross-linking of a powder coating and its adhesion to the surface to which it is applied. Similarly, a baking or drying oven performs the same function with liquid paint. Good curing or baking guarantees the flawless aesthetics of coated components and provides effective protection against corrosion and external agents.
Curing and baking ovens can be integrated into powder and liquid coating systems, including both continuous-flow lines with an overhead conveyor and static systems, and they are equipped with closing doors to minimise heat loss.
In addition to designing and building new ovens, we offer replacement and upgrading services for already existing machines, also from third-party manufacturers. We also provide ordinary and extraordinary maintenance services to keep the ovens efficient and extend their service life.
The curing and baking ovens designed and installed by Verona Impianti 2002 meet the requirements to qualify for Industry 4.0 and Industry 5.0-related incentives. Designed with a focus on reliability – with sizing parameters based on the solid foundation of our experience – and energy savings, our ovens are characterised as follows:
- Mineral wool insulation with low thermal conductivity;
- Absence of thermal bridges between the internal hot parts and the external chassis, eliminating any risk of heat loss by conduction;
- Closing doors, when possible;
- An air curtain system to retain heat inside the oven;
- Suction hoods to capture and recirculate hot air escaping from the oven’s inlets and outlets.
Depending on individual requirements, the ovens can be fed by a methane gas, LPG, or diesel burner, by resistors, or by a hybrid system with a burner coupled to electric heating elements. We use last-generation burners of the “air stream” type or the “traditional” type with a heat exchanger, depending on customer requirements.
Air recirculation fans determine the air movement between the heat generator and the oven’s chamber, where the workpieces to be dried dwell or pass through, thus improving heat exchange efficiency and reducing energy consumption. Our ovens are equipped with top air discharge and bottom air intake plenums to counteract hot air stratification and improve temperature uniformity for optimal cross-linking. This also enables us to build walkable and more “solid” floors, making maintenance easier.
Extractor fans provide the necessary air exchange to maintain an ideal atmosphere inside the oven, ensuring perfect curing or baking and a safe work environment.
The electrical control panel switches on and off the burners or resistors and fans, allowing the oven to work autonomously and maintaining the operating temperature at the set value. In the event of an anomaly or if the temperature rises above the set limit, a safety thermostat switches off the burner and resistors to prevent damage.