The MR-7 is a compact atmospheric infrared burner (7.0″ x 3.625″) that can be fed with an inspirator mixer (atmospheric) as opposed to an aspirator mixer (premix). It is a surface combustion burner that generates low heat flux infrared radiation. This model has a lower radiant velocity than a typical premix gas-fired infrared burner. As an atmospheric burner, the rated input capacity of the MR-7 is 700 Btu/hr/linear inch or 190 Btu/hr/square inch. The fuel source can be either propane or natural gas. This burner is an excellent choice for process applications where less intense infrared radiation is needed, such as plastic thermoforming.
Because it does not require an electric blower to operate, the MR-7 is used in a number of applications where portability and compact size are important, such as thermoplastic striping equipment for highways and roadways. It is also commonly used for heating and cooking foods, as well as in commercial and residential BBQ grills.
The fine porosity metallic foam emitter has the durability essential for mobile applications. The emitter provides an even combustion surface and uniform air/gas flow to prevent internal flashing. It is secured in the housing by a stainless steel frame and is sealed with a high temperature gasket to eliminate escape pathways and ensure optimum air/gas flow.
Features and Benefits
- Flash resistant, fine porosity, metallic foam emitter
- Input fuel is converted to 65% infrared, 35% convective energy
- Flat faced construction
- Durable cast iron housing with high temperature expanding gasket material
- Modular burner sections with carbon steel orifice union connectors
- Replaceable emitter with secure attachments
- Radiant heat is distributed uniformly
- Radiant energy is transferred directly into the product
- Burner can be placed closer to item to maximize radiant energy transfer
- Structural integrity in continuously operating ovens
- Quick and easy replacement of burner sections with uniform firing rate across entire burner length
- Lower stress design and cost effective maintenance