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Small roller at the front of the suction head that follows surface contours. Prevents the head from digging into uneven tarmac.

Field test using graded sand to determine macro-texture depth. Required on UK trunk-road surface-dressing sites to verify skid resistance.

Individually controlled valves for neat start/stop of spray lanes.

Heavy-duty clip securing flexible suction hoses to duct flanges. Stops vibration-related leaks under high vacuum pressure.

Fixed points used to align long lines.

Valve isolating bar for maintenance.

Opening under the nozzle where air velocity captures debris.

GIS-optimised route for city sweeping.

Small sprayer for sealing edges and patches.

Driver-operated marking unit with cabins.