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Spray fan angle set per nozzle spec.

Automatic hydraulic system keeping suction head parallel to the road. Maintains constant gap and airflow regardless of camber.

Sheet of paper or card placed behind nozzles during calibration. Reveals blocked or mis-aligned jets before binder spraying begins.

Clear inspection port built into the suction ducting. Allows operators to view and remove blockages quickly without dismantling long hose runs.

Valve isolating the spray bar from the main binder circuit. Enables safe maintenance or section testing while the tank remains full.

Camera mounted near the suction nozzle giving live footage of debris flow. Helps detect blockages early and improve efficiency.

Sensor feeding live pressure data to the binder-rate controller. Maintains uniform spray even with changing viscosity.

Process of spraying binder then spreading chippings to renew surface.

Electronic controller managing each nozzle section individually. Provides precise rate control for complex lane geometries.

Daily log recording binder and aggregate temperatures at application. Mandatory for UK contract quality-assurance records.