What design differences exist between hot bitumen sprayers and emulsion sprayers?

Hot bitumen sprayers are built around heated tanks, burners or thermal oil systems, insulated pipework, and high-temperature pumps to maintain viscosity and prevent solidification. Emulsion sprayers prioritize gentle pumping, stable pressure control, and corrosion-resistant materials to avoid breaking the emulsion. Spray bar filtration and nozzle selection differ: emulsions need fine filtration and stable pressure to prevent streaking, while hot bitumen systems focus on temperature uniformity and safe high-heat handling.