Dongfeng 4X2 4 cbm Sewage Suction Truck for Municipal Sewer Cleaning

Technical Specifications

What the 4 cbm Combination Unit Does

▶ A sewage suction truck is judged by two jobs: emptying a manhole and clearing the line that feeds it. This Dongfeng 4X2 carries a 4 cbm vacuum tank and a 2 cbm water tank on a 12,495 kg chassis, so one crew can desludge a septic tank or wet well and then jet the blockage with the same vehicle.

The Italian interceptor plunger pump delivers 16 MPa at the jetting nozzle and the vacuum system pulls -0.09 MPa. A 16 m DN8 high-pressure hose on a hydraulic reel with auto lay keeps the operator out of the road, while the rear control panel and remote pendant let the crew watch the manhole during work. Crawler, spinner and flusher nozzles cover hard deposits, grease and general flushing.

Specify the body for the routes you actually run: 4 cbm suits municipal streets, estates and small industrial sites where a larger 8-12 cbm unit cannot turn or would arrive half empty. Options include a side bin lift, CCTV inspection kit and water recycling; the last one matters where discharge rules restrict what can go to the sewer. The chassis is announced under GB and carries a two-year warranty.

Crew and Route Planning

• Allow for the water tank: jetting consumes water faster than vacuum work; plan a refill point on long routes.
• Keep the 16 m hose clear of traffic and use the remote pendant rather than standing at the rear valve.
• Match the nozzle to the blockage: crawler for hard scale, spinner for grease, flusher for general rinsing.
• Confirm the discharge point and local rules before ordering the water-recycling option.

Frequently Asked Questions

What is the difference between the 4 cbm vacuum tank and the 2 cbm water tank?

The 4 cbm tank holds the collected sludge; the 2 cbm tank feeds the high-pressure jetting circuit. Both run on the same chassis, so the truck can empty and clean in one visit.

How deep can it vacuum?

The vacuum system reaches -0.09 MPa, which is enough for typical municipal manholes and septic tanks. Hose length and lift height are confirmed for your site; tell us the pit depth when ordering.

Can it jet sewer lines as well as empty tanks?

Yes. The 16 MPa plunger pump, 16 m DN8 hose and nozzle set are designed for blockage jetting. Specify the pipe diameter and typical blockage type so we can supply the right nozzle set.

Tell us your duty cycle, preferred chassis and destination port for a specification and quotation within 24 hours.