Sewer cleaning vacuum trucks are a common type of municipal sanitation vehicle that combines both cleaning and vacuuming functions. As a multifunctional sanitation truck, it is widely used for sewage suction, blockage removal, and drain cleaning. Compared to standard vacuum trucks, sewer cleaning vacuum trucks are priced higher but are well-recognized in the market due to their extended functionalities.
Overall, the tank structures of sewer cleaning vacuum trucks can be categorized into side-mounted water tank types and integrated tank types. The side-mounted design can be further divided into semi-enclosed and fully enclosed structures, while the integrated tanks can be classified as monolithic or split tank designs. Below is a detailed overview of each structure type.
Side-Mounted Water Tank Structure
Sewer cleaning trucks with side-mounted water tanks have a high space utilization rate, offering a larger effective volume and more compact construction.
Semi-Enclosed Structure
In this type, the sewage tank is placed in the center of the chassis frame and is capable of hydraulic lifting. Rectangular water tanks are fixed on both sides of the chassis and cannot be lifted. This design offers cost advantages, but the fixed water tanks make maintenance and repairs less convenient.
Fully Enclosed Structure
Like the semi-enclosed type, the sewage tank is centered, with water tanks on both sides. However, this structure allows both the water tanks and the sewage tank to be lifted, which makes maintenance easier. Additionally, the water tanks are larger in volume and include a dedicated platform beneath for storing suction hoses, improving usability. This design does, however, require a stronger hydraulic lift system.
Integrated Tank Structure
These trucks resemble standard vacuum trucks in appearance but are internally divided to store both clean and dirty water. A key advantage is the flexibility to customize the volume ratio based on operational needs. For example, an 8-cubic-meter truck could be split into 5 cubic meters for clean water and 3 for sewage—or an even 4/4 split.
Monolithic Tank
The tank looks like a single unit from the outside but is internally divided by a steel plate to form two separate chambers. These compartments are permanently connected and cannot be detached or lifted separately.
Split Tank
This type features two visibly separate tanks: the sewage tank is liftable, while the clean water tank is fixed to the chassis. A drawback of this design is that maintenance can be more difficult, as the tanks are not integrated.
H2: Most Common Tank Structures
Among all the types, the monolithic tank and the fully enclosed side-mounted water tank structures are the most popular in the market. They offer a good balance of capacity, usability, and maintenance convenience, making them ideal choices for municipal sanitation tasks.
