Conveyor Type Liquid Coating Ovens
Infrared heaters used for curing liquid paint deliver fast, efficient drying—helping reduce both floor space and energy consumption. Instead of heating the entire part mass or the surrounding air, infrared energy acts directly on the coated surface, accelerating solvent evaporation and film formation.
In this radiation-based heating method, heat penetrates from the metal surface inward according to the material’s thermal conductivity, so the part does not need to be heated through its entire thickness as in conventional convection systems. Because infrared curing does not rely on heated air as the primary heat-transfer medium, it provides a faster thermal response and shorter cycle times. As a result, drying and curing are completed in a significantly shorter process time.
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Advantages
- Flameless radiant heating: Gas-type infrared emitters generate heat via an exothermic reaction on the emitter surface, so there is no open flame—making them suitable for solvent-based paint applications in hazardous areas (Ex-proof use is subject to correct system design, certification, and local regulations).
- Cleaner process conditions: With no open flame on the heating surface, the risk of flame-related contamination is reduced and the process environment remains more stable. (Combustion still requires proper ventilation/exhaust as applicable.)
- Smaller footprint: Faster liquid-paint drying can significantly reduce required oven length and installation space compared to conventional convection ovens (application dependent).
- Lower operating cost: Direct, targeted heating shortens drying time and helps reduce fuel consumption (process dependent).
- Reduced conveyor heat loss: In liquid-paint lines, the conveyor does not run through the heated chamber, minimizing heat loss through the conveyor chain and improving overall efficiency.
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