In industrial finishing processes, consistent and efficient heat application is critical for quality results. Paint curing ovens, used across automotive, appliance, and metal product industries, require precise temperature control to ensure uniform curing without defects. One technology that stands out in this application is the duct burner—a compact, direct-fired heating solution installed directly within the air stream. Among these, the Linofire-EB Low-temperature Burner by DYDTEC offers a reliable and efficient option tailored for medium and low-temperature heating.
（duct burner combustion system）
A duct burner is a combustion system mounted inside an air duct. It heats the passing air directly, producing a wide, stable flame in seconds. This design is ideal for applications where space is limited and rapid, uniform heat distribution is essential. Unlike traditional burners, duct burners integrate seamlessly into existing ductwork, making them a flexible solution for industrial ovens, including paint curing systems.
Paint curing ovens rely on controlled heat to evaporate solvents and cross-link polymers in the paint finish. The process demands:
Uniform Temperature Distribution: To avoid uneven curing, which can lead to gloss variations or adhesion issues.
Ramp-up Speed: Faster heat-up times improve cycle times and throughput.
Energy Efficiency: Direct firing within the duct minimizes heat loss.
The Linofire-EB burner meets these needs with its 40:1 high-precision regulation ratio, allowing fine-tuned temperature control. With a capacity range from 146 kW to 3516 kW, it can be scaled to match various oven sizes. Its low gas pressure requirement (1000 Pa for natural gas) also makes it easy to integrate into existing systems.
（duct burner）
Designed in compliance with EN746-2, the Linofire-EB series brings several advantages to paint curing ovens:
Stable, Clean Combustion: Low NOx emissions align with modern environmental standards.
Wide Flame Area: A flame length of 1100 mm ensures even heat spread.
Flexible Installation: Can be mounted horizontally, vertically upward, or downward.
Robust Construction: All-metal components withstand continuous operation, with max upstream temperatures up to 400°C (cast iron) or 245°C (cast aluminum).
In a typical curing oven setup, the Linofire-EB burner is installed within the recirculating air duct. Heated air is evenly distributed across the product surface, ensuring consistent film formation. The burner’s fast response and wide modulation range help maintain setpoint temperatures even under varying load conditions—essential for curing different part sizes or paint types.
（Duct Burner for Paint Curing Ovens）
DYDTEC offers both split and integrated application modes. The split configuration separates the fan, control cabinet, and gas lines, ideal for retrofitting. The integrated design combines the burner, fan, and controls into a single unit, saving space and simplifying installation.
The Linofire-EB series is designed for low emissions, with CO and NOx levels monitored under standardized conditions. This is particularly important in regulated industries where environmental compliance is mandatory.
For manufacturers looking to improve the performance of paint curing ovens, duct burners like the Linofire-EB offer a compelling solution. With high turndown, reliable operation, and flexible installation, they support both energy efficiency and finish quality. If you’re designing a new oven or upgrading an existing one, consider a duct burner system that balances power with precision.
