The continuous annealing line of Stainless Steel adopts direct heating, and the maximum furnace temperature can reach up to 1200℃. It is recommend to use our low NOx air staged burner SNLNOx. The burner SNLNOx For SNLNOx, either cold air or preheated air to 450 ℃ is suitable, and the turndown ratio is 1:3. Low NOx emissions guaranteed by multi-stage air supply structure and the Sinnox-Flame ® combustion technology no matter how hot the combustion air is.