You’ve likely seen street sweepers—the most common municipal sanitation vehicle on roads—frequently spraying water to clean road surfaces. However, for highway cleaning, a more advanced and efficient solution is the multifunctional sweeper-scrubber. While sweeping debris, it simultaneously sprays water onto the pavement, delivering superior cleanliness and enhancing visual appeal and environmental hygiene. Below is an overview of the working principle of the sweeper-scrubber, introduced by Hubei Chengli Special Automobile Co., Ltd. for online users: 1. The sweeper-scrubber features a centrally mounted dual-brush system and a wide central suction hood, combined with a V-shaped high-pressure water jet frame equipped with anti-collision and obstacle-avoidance functionality—forming a continuous cleaning and flushing zone exceeding 3.5 meters in width. 2. It employs a Cummins EQ6BT5.9-118 auxiliary engine (with electric-drive variants also available), transversely mounted at the vehicle chassis center. A suction fan—controlled via a pneumatic clutch—is installed on the left side of the power compartment. 3. Both the water tank and garbage bin are fabricated from stainless steel using a square corrugated structural design. The water tank consists of two sections: a front-mounted independent tank located ahead of the power compartment; and a second tank positioned at the front of the garbage bin, which rises and lowers synchronously with the garbage bin and power-compartment cover. 4. The garbage bin incorporates a lifting mechanism and is fitted with high-pressure rinse nozzles, enabling effortless, thorough unloading. The power-compartment cover—also hydraulically lifted along with the garbage bin—greatly facilitates maintenance and servicing of the powertrain. 5. Premium components sourced from Europe and North America ensure outstanding overall vehicle performance and exceptional operational reliability. Now that you understand how the sweeper-scrubber works, let’s explore the key features of Chengli’s sweeper-scrubber models—developed by Hubei Chengli Special Automobile Co., Ltd., a leading manufacturer of specialized road maintenance vehicles. Chengli Sweeper-Scrubber Overview: Based on the Dongfeng Tianjin DFL1160BX5 chassis, this vehicle delivers comprehensive road cleaning capabilities—including pavement washing, sweeping, curb cleaning, vertical scrubbing of curbs and curb stones, low-pressure rinsing, and misting for dust suppression. It offers nine selectable operating modes: “Full Wash-Sweep,” “Left Wash-Sweep,” “Right Wash-Sweep,” “Full Sweep,” “Left Sweep,” “Right Sweep,” “Full Wash,” “Left Wash,” and “Right Wash.” It is ideally suited for mechanized cleaning, sweeping, and dust-suppression operations on urban roads, expressways, plazas, airports, ports, tunnels, bridges, guardrails, curbs, and vertical curb-stone surfaces. This article—provided by Hubei Chengli—details the working principles and functional advantages of Chengli sweeper-scrubbers. We hope you find this information helpful. For those considering purchasing a sweeper-scrubber, Chengli’s models represent an excellent choice!