The shell is treated with spraying + rotational molding process, which is corrosion-resistant and impact-resistant, and can run stably in harsh environments. The ultra-wide cleaning range greatly improves work efficiency. The maintenance-free battery has a long battery life and reduces maintenance costs. The integrated waterproof wiring harness is suitable for complex environments, and the one-button start is easy to operate. The tires have strong grip and good passability. The ultra-large filtration area, large-capacity water tank and garbage bin, combined with efficient vibration dust removal and fan power, clean efficiently and thoroughly.