The Topsky Tianlong Tantu 120-Y is an industrial-grade tracked water and foam monitor robot built for sustained, large-area fire suppression in petrochemical plants, warehouses, tunnels, and large-span facilities where thermal loads and hazard complexity prevent close-in operations. Its all-terrain crawler chassis handles 220 mm obstacles, 500 mm wading depth, and slopes up to 40 degrees, while a maximum travel speed of 1.8 m/s enables rapid scene repositioning. The high-flow monitor is rated at 120 litres per second, with water throw distances exceeding 96 metres and foam throw distances exceeding 92 metres, and near-360-degree horizontal rotation provides broad tactical coverage for cooling, knockdown, and exposure protection without relocating the chassis.

Advancing charged hose lines is one of the most physically demanding aspects of fireground work; the Tantu 120-Y addresses this with a rated dragging capacity of two DN80 full water hoses over a minimum of 80 metres, allowing suppression lines to be repositioned without exposing personnel to peak heat. The robot's dual water and foam delivery capability, combined with optional environmental sensing integration described for the 120 L/s class, positions the Tantu 120-Y as a versatile standoff suppression platform suited to fire departments and industrial safety teams that require sustained high-volume agent delivery at safe distances from the seat of fire.