Maxon 125/20/40/80-121 Gas Burner Unit

Module Feature

125/20/40/80-121 is Maxon multi‑orifice straight flame gas burner. The model code represents different capacity grading, supporting wide turndown operation. It mixes fuel gas and combustion air inside the burner head to form stable, controllable flame.

The burner head is heat resistant alloy construction, anti‑backfire design. It can work with separate air/gas ratio control system. Widely used on industrial furnaces, drying ovens, thermal oxidation and heat treatment equipment.

Working principle

Combustion air and natural gas are delivered separately to the burner mixing zone. Gas jets through multiple small orifices and blends with air to form uniform fuel‑air mixture.

Ignition spark lights the mixture, forming stable straight flame. The air/gas ratio is adjusted by upstream control valves to change heat output and maintain safe combustion condition. Flame detector monitors flame presence for safety interlock.

Onboard components

Heat resistant alloy burner head, gas distribution manifold, multi‑orifice tip, air inlet flange, ignition port, flame sighting port, mounting flange.

LED indicators

No built‑in indicator lamp, flame status is displayed on matched flame amplifier cabinet.

Hardware self‑diagnosis

Pure mechanical burner; electronic diagnosis depends on external flame scanner and safety shutoff valve system.

Programming software

Not applicable.

Electrical & Process Parameters

Model:125/20/40/80-121 Brand:Maxon Device type:Multi‑orifice gas burner Fuel:Natural gas Function:Controlled combustion heat release for industrial furnace and oven

Mechanical & Structure

Mounting:Flange mounting on furnace wall Protection class:IP40 Housing:Heat resistant alloy burner assembly

Environmental

Operating temperature:Up to +1093℃ at flame zone Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing Certification:UL, CE compliant for combustion service Status:Maxon original combustion spare burner

Installation

Mount burner to furnace refractory flange, install gasket for sealing. Connect gas piping and combustion air duct according to marked flow direction.

Install matched ignition transformer, flame sensor and safety shutoff valves. Complete leak test, air purge and ignition trial before commissioning. Keep burner tip clean to avoid orifice blockage.

Interface

Gas inlet flange, combustion air inlet flange, ignition and flame sight ports.

Diagnostic

No ignition: Gas supply blocked, insufficient combustion air, ignition electrode fouled.

Flame unstable / blow out: Air‑gas ratio out of range, orifice blocked, furnace pressure fluctuation.

Backfire: Excessive mixture velocity drop, damaged burner tip.

Product BriefMaxon 125/20/40/80-121 multi‑orifice gas burner, natural gas firing, wide turndown, alloy burner head, used for industrial furnace, drying oven and thermal process combustion system.