Dongfeng 8x4 Combination High-Pressure Sewer Jetting & Vacuum Truck – 10 Cubic Meters Water Tank and 23 Cubic Meters Sludge Tank
I. Product Introduction
This Dongfeng Tianlong 8x4 Combination High-Pressure Sewer Jetting & Vacuum Truck (Model: CL5311GQW6CC) is a heavy-duty, large-capacity municipal sanitation vehicle engineered for the most demanding sewer cleaning and sludge removal operations. Built on the robust Tianlong 8x4 chassis, this truck integrates powerful high-pressure water jetting with high-capacity vacuum suction in a single, durable unit. Designed for industrial-scale drainage maintenance, urban sanitation projects, and emergency waste cleanup, it features a split-tank design with strengthened self-dumping capability, ensuring maximum efficiency and productivity for municipal contractors, waste management professionals, and environmental service companies seeking heavy-duty combination trucks for sewer system maintenance.
II. Core Specifications
Chassis Model: Dongfeng Tianlong 8x4 Heavy-Duty Chassis – engineered for maximum payload capacity
Engine Power: DDI 465 HP Diesel Engine – exceptional power for heavy-duty applications and industrial cleaning tasks
Emission Standard: Euro V / National VI compliant – environmentally friendly operation
Wheelbase: 2,050 + 4,400 + 1,350 mm – optimized for vehicle stability and load distribution
Transmission: Heavy-Duty Manual Gearbox – matched to engine output for reliable power delivery
Tires: 12.00R20 Steel Cord Radial Tires – maximum load-bearing capacity for heavy hauling
Braking System: ABS (Anti-lock Braking System) – enhanced safety features for commercial vehicles
Overall Dimensions: 11,995 mm x 2,550 mm x 3,850 mm (L x W x H) – strictly compliant with national standards, with hose reel integrated within dimensions
Tank Capacity: 33 Cubic Meters Total ( 10 Cubic Meters Water Tank + 23 Cubic Meters Sludge Tank ) – ideal for extended operation
Tank Thickness: 8 mm high-strength carbon steel construction – superior durability
High-Pressure Pump: PF 350 High-Pressure Plunger Pump – industrial-grade performance for water jetting
Vacuum Pump: 258 Water-Circulation Vacuum Pump – driven by 420 HP Auxiliary Engine for dedicated suction power
III. Dimensions, Materials & Design Concept
Overall Dimensions: The vehicle measures 11,995 mm in length, 2,550 mm in width, and 3,850 mm in height, strictly adhering to regulatory standards. The design ensures that the rear-mounted hose reel is fully integrated within the legal dimensional limits, eliminating compliance concerns during transport and field operations.
Tank Dimensions & Configuration: The tank features a split-body design with two separate compartments: a 10-cubic-meter water tank and a 23-cubic-meter sludge tank , separated by internal bulkheads. Each compartment is independently sealed to prevent cross-contamination between clean water and collected waste materials.
Material: The tank is constructed from 8 mm thick national standard high-strength carbon steel , offering exceptional durability against impact, pressure, and corrosion from abrasive sludge and chemical residues. The tank interior features stainless steel floor lining (1.2 meters wide) in critical areas to resist wear from heavy debris. All steel components are treated with anti-corrosion coating for extended service life in harsh sanitation environments.
Design Concept: The design philosophy centers on "Industrial Capacity with Strengthened Durability." Every aspect, from the 8 mm tank thickness to the reinforced self-dumping mechanism and hydraulic locking system, is engineered for continuous heavy-duty operation. The strengthened dump tank design allows for efficient unloading of dense waste products, while the generous 10m³ + 23m³ split ensures extended operation between water refills and waste disposal at treatment facilities.
IV. Detailed Structure & Component Advantages
Main Engine: Powered by the formidable DDI 465 HP diesel engine , this vehicle delivers immense power for the most challenging sewer jetting and sludge extraction tasks. The 465 HP powerplant ensures effortless operation of both the high-pressure pump and vacuum system simultaneously, even under full load conditions, while maintaining excellent fuel economy for a vehicle of this class. This heavy-duty engine is trusted for its reliability in demanding applications.
Auxiliary Engine System: A dedicated 420 HP auxiliary engine is installed to drive the 258 water-circulation vacuum pump independently. This split-power design allows the main DDI engine to focus on vehicle mobility while the auxiliary power unit provides dedicated power for vacuum operations, ensuring optimal performance and reliability during extended suction tasks without placing additional load on the primary engine – a key feature for industrial vacuum trucks.
Transmission & Drivetrain: The heavy-duty transmission is specifically matched to the 465 HP engine output, providing smooth power delivery across all speed ranges. The 8x4 drive configuration (front two axles steering, rear two axles driving) ensures exceptional traction and stability on uneven terrain, construction sites, landfill access roads, and off-road environments common in waste management.
Chassis & Axles: The Dongfeng Tianlong 8x4 chassis features a triple-axle rear configuration (tandem drive axles with liftable tag axle capability) designed for maximum payload capacity and load distribution. The 2,050 + 4,400 + 1,350 mm wheelbase combination ensures optimal weight balance between the front steering axles and rear drive axles, providing stability during both highway transit and stationary vacuum extraction at job sites.
Hydraulic Dump System: The tank is equipped with a front-mounted 140 hydraulic cylinder featuring a hydraulic locking mechanism for safe and controlled self-dumping. This strengthened dump design allows the 23m³ sludge tank to be raised to a steep angle for complete discharge of even the thickest, most viscous waste slurry. The hydraulic system includes safety lock valves to prevent accidental lowering during maintenance, enhancing workplace safety.
Frame & Suspension: The chassis frame is reinforced with high-strength steel cross-members to support the massive 33m³ tank during both laden transit and dumping operations. Heavy-duty leaf spring suspensions on all axles provide excellent load-carrying capacity while absorbing road shocks for component protection and long-term durability.
V. Product Features & CLW Group Advantages
Dual-Pump High-Efficiency System: The combination of a PF 350 high-pressure pump (for powerful water jetting to break through tough blockages in sewer lines) and a 258 water-circulation vacuum pump driven by a 420 HP auxiliary engine (for massive sludge extraction capacity) ensures unparalleled cleaning performance. The PF 350 pump delivers industry-leading pressure and flow for sewer jetting applications, while the auxiliary-driven 258 pump provides continuous, powerful suction independent of main engine speed – ideal for heavy sludge removal.
Heavy-Duty Tank Construction: The 8 mm thick carbon steel tank with stainless steel floor lining (1.2m wide) provides exceptional resistance to wear from abrasive sludge, debris, and solid waste. The strengthened dump body with internal reinforcement ensures structural integrity even when handling the heaviest waste loads. The tank features internal ladders in both compartments for safe access during cleaning and maintenance, meeting occupational safety standards.
Comprehensive Operational Features:
Dual Inspection Windows: One glass observation window at the rear and one on the passenger side for visual monitoring of tank fill levels during suction operations.
Night Operation Ready: Rooftop LED work lights for safe and efficient nighttime operation or low-light conditions at emergency response sites.
Safe Access: Side-mounted access ladders and top walkways with anti-slip tread for operator safety during tank inspection and maintenance.
Multiple Discharge Ports: One 800 mm hydraulic rear discharge door for rapid dumping, one 6-inch rear discharge port, one 4-inch rear discharge port, two 4-inch reinforced suction ports on the right side, and one 4-inch water tank drain port at the bottom for versatile waste unloading.
Interconnectivity: A 4-inch interconnecting line between water and sludge tanks with a 6-inch emergency bypass for operational flexibility during complex cleaning jobs.
Oversized Hose Reel: A 950 mm heavy-duty hydraulic hose reel with reinforced core, pre-rigged with 100 meters of 25 mm diameter Shenyang high-pressure hose – ready for extended reach sewer cleaning.
Expanded Toolbox: A large 3 mm steel toolbox located behind the cab for secure storage of nozzles, fittings, and tools, keeping essential equipment organized.
Heavy-Duty Valves: Equipped with 4-inch butterfly valves for efficient air release and system control during vacuum operations.
Enhanced Filtration: Includes a custom oversized filter to protect the vacuum pump from debris, ensuring pump reliability.
Water Tank Construction: The water tank for the vacuum pump cooling system is fabricated from 3 mm steel plate and centrally mounted for optimal weight distribution.
Hydraulic Tank Placement: The hydraulic oil tank is underslung (mounted below deck) to maximize platform space and lower the center of gravity for improved vehicle handling.
CLW Group Advantages: As a premier Chinese special vehicle manufacturer with decades of engineering excellence, CLW Group offers:
Compliance & Precision: Every CL5311GQW6CC is manufactured strictly in accordance with national standards and regulations, ensuring full road legality, easy registration, and trouble-free operation for global customers.
Strengthened Engineering: The reinforced dump body design and hydraulic locking system are exclusive CLW Group enhancements, providing superior durability compared to standard units – a key advantage for heavy-duty applications.
Customization Expertise: We specialize in tailoring tank configurations, pump selections (including alternative high-pressure pump models), and accessory packages to meet specific municipal requirements, industrial applications, or mining operations.
Quality Assurance: Rigorous ISO 9001 quality control processes govern every stage of fabrication, from 8 mm steel plate welding to final hydraulic system testing, ensuring reliable equipment for demanding conditions.
Integrated Supply Chain: Direct sourcing of genuine components – including Dongfeng chassis, DDI engines, PF pumps, and specialized hydraulic components – ensures competitive pricing, guaranteed spare parts availability, and reliable after-sales support through our global service network.
Global Track Record: Proven success in exporting heavy-duty sanitation equipment, vacuum trucks, and combination sewer cleaners to international markets, backed by comprehensive technical documentation, professional shipping logistics, and responsive customer service for distributors, government agencies, and private fleet operators worldwide.
