Adopts a water-cooled vacuum pump of a well-known brand, allowing for double pumps in series. It has advantages such as long single continuous operation time, high absolute working pressure, large flow rate and suction power, and long suction range. The tailgate adopts an independent patented opening and closing locking device that comes with a hydraulic system which is safety protected. The double insurance mechanism allows for the container and the tailgate rubber strip to be reliably sealed, ensuring that the sewage is kept closed during the collection and transportation.

The liquid level display of the sewage tank is easy to observe, easy to disassemble, and easy to clean and maintain.

An internationally well-known brand of knife gate valves are used for both the suction port and the sewage outlet to ensure the long-term airtightness of the sewage valve.

Equipped with a rotating arm (optional for 7-ton sewage suction truck), the arm has the functions of lifting, rotating, and telescopic, covering a wide range and strong maneuverability.