Vacuum trucks, also called sewage suction or septic trucks, use a vacuum pump to draw liquid waste and sludge into a sealed tank. They are used to empty septic tanks and cesspits, clear blocked drains, clean grease traps and remove sludge from treatment works. Combined jetting versions add a clean water tank and high-pressure pump, so one truck can flush the pipe and suck up the debris.
The key figures to compare are tank volume, vacuum pump capacity, suction depth and hose length. A larger tank means fewer trips to the discharge point, but a compact chassis reaches tanks behind houses and in narrow lanes. For sludge with sand or solids, look for a tank with a rear opening door and a stronger pump.
Most vacuum trucks here are built on Dongfeng chassis, with Shacman and Foton for larger capacities. Tell us the type of waste, the typical suction depth and your road conditions, and we will recommend a suitable tank size and pump.