Sewer Jetting & Vacuum Sludge Tank Semi-Trailer
The Sewer Jetting & Vacuum Sludge Tank Semi-Trailer (also known as a Combination Sewer Cleaner or Combo Jet/Vac Semi-Trailer) is an advanced, heavy-duty municipal and industrial utility trailer engineered specifically for high-capacity, heavy-duty sewer line maintenance, industrial sludge extraction, chemical waste recovery, and high-pressure culvert jetting. Featuring a dual-compartment or moveable internal partition tank design, it holds both clean water for high-pressure jetting/flushing and extracted sludge/sewage in a single high-efficiency mobile unit. Fabricated from high-tensile carbon steel (Q345B/Q355B) or corrosion-resistant stainless steel (SUS304), it integrates a high-capacity liquid-ring or rotary-vane vacuum pump (such as Jurop, Pratissoli, or roots blowers) alongside an ultra-high-pressure triplex plunger jetting pump (producing 150–250 bar pressure at 200–400 L/min). Outfitted with a 360° rotating hydraulic boom hose arm, rear hydraulic openable dished taildoor, heavy-duty hydraulic tank elevation/tipping cylinders for rapid sludge dumping, and automatic boom controls, it delivers unmatched suction depth and cleaning performance. Paired with 3 commercial heavy-duty axles, mechanical or air ride suspension, and WABCO ABS/EBS pneumatic braking, it provides exceptional highway stability, operational versatility, and severe-service durability. Fully certified under ISO9001, CCC, CE, DOT, and SGS standards.
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Product Details
Technical Specifications
Model NO. : Customized
Type : Semi-Trailer / Combination High-Pressure Sewer Jetting & Vacuum Sludge Tanker
Total Tank Capacity : 20,000 Liters to 35,000 Liters (e.g., 10,000L Clean Water + 20,000L Sludge / Moveable Baffle)
Vacuum Pump System : Liquid-Ring / Heavy-Duty Rotary Vane / Roots Blower Vacuum Pump (Flow Rate: 1,500 - 4,000 $m^3/h$, Max Vacuum: 90% - 95%)
High-Pressure Jetting Pump : Heavy-Duty Triplex Plunger Pump (e.g., Pratissoli / Uraca / Speck; Pressure: 150 - 250 bar, Flow Rate: 200 - 400 L/min)
Hydraulic Tipping / Dumping : Dual High-Pressure Hydraulic Cylinders for Rear Tank Elevation ($40^\circ - 45^\circ$ Dumping Angle)
Rear Door Opening : Hydraulically Fully Opening Rear Taildoor with Heavy-Duty Wedge Lock Clamps & Rubber Gaskets
Suction Boom : Top-Mounted 360° Hydraulic Slewing, Elevating, and Telescopic Vacuum Boom Hose Arm
Condition : New
Grade : Heavy Duty / Municipal & Industrial Environmental Service Grade
Shape : Cylindrical Pressure/Vacuum-Rated Tank Body
Origin : Shandong, China
Production Capacity : Customized
Certifications : ISO9001 / CCC / CE / DOT / SGS
HS Code : 8716399000
Overall Dimensions : 11000-13500 x 2500 x 3750-3950 mm
Tank Shell Material : High-Tensile Carbon Steel Q345B / Q355B (6mm - 8mm Shell, 8mm Dished Heads) or Stainless Steel SUS304
Internal Coating : Heavy-Duty Anti-Corrosion Coal Tar Epoxy / Marine Epoxy Interior Lining
Auxiliary Power Unit (APU) : Independent Heavy Auxiliary Diesel Engine (e.g., Cummins / Weichai 180HP - 260HP) or Tractor PTO Hydraulic System
Jetting Hose Reel : Rear Hydraulic Rotating Hose Reel with 100m - 150m High-Pressure Reinforced Jetting Hose
Suction Hose & Storage : 4-Inch / 6-Inch Heavy Duty Suction Hoses with Side Aluminum Hose Storage Trays
Kingpin : JOST 2-inch or 3.5-inch Heavy-Duty Bolted/Welded Kingpin
Landing Gear : JOST / FUWA Two-Speed Manual Landing Gear (28T Capacity)
Wheel Base : 6500mm + 1310mm + 1310mm
Tread : 1820 mm / 2050 mm
Axle Number : 3 Axles
Axle Brand : FUWA / BPW / HuaJin Heavy Duty
Axle Capacity : 13T / 16T / 20T Heavy-Duty Axles
Tire Number : 12
Tire Specification : 12R22.5 / 385/65R22.5 Tubeless Heavy-Duty Tires
Tire Brand : Triangle / Double Coin / Michelin / Bridgestone
Rim : 9.00-22.5 / 11.75-22.5 Heavy Steel Disc Rims
Suspension : Heavy Duty Mechanical Multi-Leaf Spring / Heavy Bogie / Air Ride Suspension
Leaf Spring : 10pcs / 12pcs Reinforced (90x16mm / 100x16mm)
Brake System : Dual-Line Pneumatic Air Braking System with ABS / EBS
ABS/EBS Brand : WABCO / Haldex
Self-dumping : Hydraulic Front-End Tipping Tank Body for Sludge Unloading
Main Chassis / Frame : Heavy-Duty Sub-Frame Backbone (Q345B/Q550) Integrated with Tank Pivot Mounts
Manhole Cover : Top-Mounted Vacuum-Rated Manholes with Primary & Secondary Moisture Trap/Cut-off Valves
Safety Equipment : Overfill Protection Shut-off Float Valve, Cyclone Air Filter, Pressure Relief Valves, Vacuum Relief Valves
Top Walkway : Anti-Slip Catwalk with Safety Foldable Handrails
Spare Tire Carrier : 1-2pcs
Tool & Control Box : Lockable Equipment Cabinet for Hydraulic Controls, Hose Nozzles, and Wireless Remote Unit
Electric System : 24V, 7 Pin Socket, High-Intensity LED Work Lights, Rear Flashing Warning Strobe Light Bar
Wiring Harness : Armored Weatherproof Lines
Painting / Finish : Shot Blasting (Sa 2.5) + Zinc-Rich Epoxy Primer + High-Durability Polyurethane Topcoat
Colour : Custom Municipal Blue / Orange / Yellow with Reflective Safety Markings & Service Branding
Warranty : Tank Structure & Tipping Sub-Frame 3Y / Axles, Vacuum Pump, High-Pressure Pump & Engine 1Y
Package : Nude Packing / Bulk Vessel / Ro-Ro
Delivery Time : 35-40 Working Days
Payment Terms : T/T, L/C
Key Structural & Performance Features
1. Dual-Compartment / Moveable Baffle Tank Architecture
- Integrated Jetting & Vacuum Extraction: Features a partitioned tank structure containing clean jetting water in the front section and extracted heavy sludge/sewage in the rear, enabling simultaneous culvert washing and vacuum recovery in a single pass.
- Vacuum and Pressure Rated Shell: Built with thick 6mm–8mm structural steel and dished end caps reinforced with external stiffness rings, withstands deep negative vacuum suction pressures as well as internal unloading pressures.
- Hydraulic Tipping & Full Rear Opening: The entire tank body can be elevated hydraulically to a $45^\circ$ angle while the rear taildoor swings wide open via hydraulic cylinders, permitting rapid, effortless dumping of dense mud, stones, and sticky industrial sludge.
2. High-Performance Vacuum Extraction & Jetting Systems
- Ultra-High Vacuum Blower/Pump: Outfitted with a heavy-duty liquid-ring or rotary-vane vacuum pump delivering up to 4,000 $m^3/h$ airflow, capable of lifting dense mud, gravel, and heavy waste from depths exceeding 10–15 meters.
- Triplex Plunger High-Pressure Jetting: Driven by a premium industrial plunger pump capable of producing up to 250 bar pressure, scouring grease, root blockages, and hardened sand out of large-diameter municipal storm pipes.
- 360° Telescopic Hydraulic Boom: Equipped with a top-mounted hydraulic suction boom that rotates 360 degrees and extends vertically/horizontally, allowing operators to position heavy suction hoses over manholes without moving the trailer.
3. Comprehensive System Protection & Heavy-Duty Frame
- Multi-Stage Overfill Protection: Features dual ball-float shut-off valves, a cyclone moisture separator, and fine air intake filters to completely prevent liquid slurry from entering and damaging the vacuum pump.
- Heavy-Duty Tipping Sub-Frame: The tank structure is anchored to a high-tensile Q345B/Q550 structural steel tipping frame equipped with oversized rear pivot hinges to absorb immense dynamic weight distribution during unloading.
- WABCO ABS/EBS Braking Safety: Dual-line air braking system incorporating WABCO ABS/EBS and emergency relay valves ensures synchronized, reliable stopping power under maximum heavy payload ratings.
Commercial & Logistics Terms
- Warranty Policy: 3-Year warranty for the main tank shell structure and tipping chassis frame; 1-Year warranty for axles, vacuum pump, high-pressure jetting pump, auxiliary engine, and hydraulic valves.
- Delivery Lead Time: 35 – 40 working days upon order confirmation and technical drawing approval.
- Packaging & Shipping: Nude packing; shipped via Bulk Cargo vessel or Ro-Ro vessel.
- Payment Terms: T/T (Telegraphic Transfer), L/C (Letter of Credit).

