ISUZU 8 CBM Vacuum Sewer Truck
The ISUZU 8 CBM Vacuum Sewer Truck is a specialized sewage collection and transportation vehicle designed for municipal sanitation departments, wastewater treatment contractors, industrial facilities, and environmental maintenance companies that require an efficient solution for removing sewage, septic waste, sludge, and liquid waste from underground tanks, septic systems, drainage pits, and sewer networks. Built on a Qingling ISUZU 4×2 commercial truck chassis, this vacuum sewer truck combines a practical tank configuration, a diesel-powered drivetrain, and a PTO-driven vacuum pumping system to support routine sanitation operations while maintaining the maneuverability and road performance needed for urban service routes and industrial sites.
Equipped with a nominal 8,000-liter (8 CBM) cylindrical vacuum tank, the vehicle is designed to collect and transport substantial volumes of liquid waste during daily operations, helping reduce unnecessary trips between collection points and approved disposal facilities. The tank is manufactured from carbon steel with corrosion-protection treatment, while its hydraulic rear cover and tank-tilting mechanism are designed to facilitate unloading, inspection, and routine cleaning. For customers comparing different municipal sanitation vehicles, this model can complement an industrial vacuum truck or a sewer cleaning truck, depending on whether their primary requirement is sewage extraction, pipeline maintenance, or combined sewer-service operations.
The proposed vehicle configuration measures approximately 7,990 × 2,450 × 3,150 mm, with a gross vehicle weight of 16,000 kg and an estimated curb weight of 8,500 kg. Its three-person cab provides space for the driver and operating crew, while the 4×2 chassis layout offers a practical balance between load-carrying capability and everyday road use. The final chassis model, wheelbase, axle ratings, and permissible payload should be confirmed according to the selected vehicle configuration and the destination market’s regulations, as the actual legal liquid load depends on the completed vehicle’s certified weight and axle-load limits.
Power comes from a proposed ISUZU 4HK1-series diesel engine with an approximate displacement of 5,193 mL and a maximum output of around 190 hp (139 kW), depending on the selected engine version. Paired with a manual transmission featuring six forward gears and one reverse gear, the drivetrain is intended to provide dependable power for transportation between work sites and wastewater disposal facilities. The engine’s final power, torque, emissions certification, and rated speed must be verified against the specific engine datasheet before the vehicle is manufactured or ordered.
Designed around practical operation and straightforward maintenance, the 8 CBM sewage suction truck is suitable for municipal sewer maintenance, septic tank emptying, wastewater collection, and industrial liquid-waste handling where an appropriately rated vacuum system and a correctly configured chassis are essential. Customers can also compare this vehicle with an ISUZU water tank truck when planning a broader fleet for municipal cleaning, water transportation, and environmental services.
Features
1. 8 CBM Cylindrical Vacuum Tank
The truck is equipped with a nominal 8 m³ cylindrical tank designed for collecting and transporting sewage, septic waste, and other compatible liquid waste. Its carbon-steel construction, combined with a corrosion-protection treatment, provides a practical foundation for demanding sanitation work, while the cylindrical structure is suitable for vacuum service when manufactured to the required pressure and vacuum design standards. The tank’s internal structure, wall thickness, reinforcement, and corrosion-protection system should be selected according to the intended waste type and the manufacturer’s engineering requirements.
A liquid-level sight window or indicator allows the operator to monitor the tank’s filling condition during collection, helping prevent overfilling and supporting safer operation. Because the nominal tank volume is not the same as the permitted payload, the final usable filling volume must be limited according to the completed truck’s certified weight, axle capacities, and the density of the material being collected.
2. PTO-Driven Vacuum Pumping System
The vacuum system uses a rotary-vane vacuum pump driven by the truck’s power take-off (PTO), allowing the engine to supply the mechanical power needed for sewage suction without requiring a separate main power source. The proposed pump operating speed is approximately 800–1,400 rpm, depending on the selected pump model and drive arrangement, while the target maximum vacuum is at least 500 mmHg, equivalent to approximately 66.7 kPa below atmospheric pressure.
Under suitable operating conditions, the system is intended to draw sewage from collection points more than 6 meters below the truck’s position. The actual suction performance depends on the vertical lift, hose length and diameter, material viscosity, leakage, and pump capacity, so the stated suction depth and filling time should be validated during equipment selection and testing. A filling time of less than five minutes may be used as a proposed performance target under specified test conditions rather than a guaranteed result for every job site.
3. Hydraulic Rear Cover and Tank-Tilting System
To simplify unloading and maintenance, the rear tank cover is designed to open hydraulically, with a mechanical locking system to secure the cover during transportation and normal operation. A dedicated hydraulic cylinder operates the rear cover, while a separate cylinder raises the tank body to assist with discharging collected material after the appropriate pressure-release and safety procedures have been completed.
The combination of hydraulic tank tilting and rear-cover opening provides practical access for removing accumulated residue and cleaning the tank interior. Before opening the rear cover or raising the tank, operators must follow the manufacturer’s operating procedure, ensure the vacuum system has been safely depressurized, and position the vehicle on suitable, stable ground.
4. Qingling ISUZU 4×2 Chassis and Diesel Power
The proposed configuration uses a Qingling ISUZU medium-duty 4×2 chassis and an ISUZU 4HK1-series diesel engine, with an estimated output of 190 hp and a displacement of approximately 5.2 liters. This combination is intended to provide the road-going power required for transporting collected sewage between municipal collection points, industrial facilities, and designated treatment locations.
A manual transmission with six forward gears and one reverse gear is proposed to support controlled driving under varying road and load conditions. The final wheelbase, tire specification, suspension, axle ratings, and steering configuration depend on the selected chassis model and market requirements. Left-hand-drive and right-hand-drive versions may be considered where supported by the chosen chassis and local regulations.
5. Practical Controls and Standard Accessories
The standard equipment package is designed to support routine sewage suction and unloading work, with the main vacuum pump connected to the tank through a suitable pipeline and valve arrangement. A vacuum pressure gauge helps the operator monitor system vacuum, while a four-way valve supports the intended operating functions according to the final plumbing design. A moisture separator helps reduce the risk of liquid carryover into the vacuum pump when correctly sized and maintained.
The proposed standard accessories include:
- One rotary-vane vacuum pump with PTO drive
- One set of vacuum pipelines and valves
- One hydraulic cylinder for the rear cover
- One hydraulic cylinder for tank tilting
- One vacuum pressure gauge
- One liquid-level sight window or indicator
- One rear-cover locking system
- One four-way valve
- One moisture separator
- One set of suction hoses and couplings, with final length and diameter to be confirmed
Optional equipment can include a sprinkler system, a full-tank alarm, additional suction hoses, and extra pipeline fittings, allowing customers to configure the truck according to the requirements of municipal maintenance teams, septic service providers, and industrial sanitation contractors. For broader fleet planning, customers may also review the available municipal waste collection trucks for complementary waste-management applications.
6. Applications in Municipal and Industrial Sanitation
The ISUZU 8 CBM Vacuum Sewer Truck is intended for a range of sewage collection tasks, including septic tank emptying, wastewater pit cleaning, sewage transfer, and the removal of compatible liquid waste from municipal and industrial sites. Its vacuum tank and suction equipment are designed to make collection more organized, while the hydraulic discharge arrangement supports unloading and tank maintenance at suitable disposal or treatment facilities.
For long-term service, operators should inspect vacuum hoses, seals, valves, hydraulic connections, and tank-locking components regularly, while cleaning the tank and moisture separator according to the manufacturer’s maintenance schedule. The waste being collected must be compatible with the tank material, seals, hoses, and pump; hazardous, highly corrosive, or unusually viscous substances may require a different equipment configuration.
Configuration note: The dimensions, engine output, vacuum performance, and other figures in this description are proposed specifications for planning purposes. Final specifications should be confirmed against the selected chassis and vacuum-pump datasheets. In particular, the 8 CBM nominal tank capacity must not be interpreted as permission to carry 8,000 kg of sewage on every chassis; the usable load must remain within the certified gross vehicle weight and individual axle limits.
Specifications
| Name | Specification |
|---|---|
| Vehicle Name | ISUZU 8 CBM Vacuum Sewer Truck |
| Vehicle Type | Sewage Suction Truck / Vacuum Sewer Truck |
| Tank Capacity | 8,000 L (8 CBM) |
| Overall Dimensions (L × W × H) | 7,990 × 2,450 × 3,150 mm (estimated) |
| Gross Vehicle Weight (GVW) | 16,000 kg |
| Curb Weight | Approx. 8,500 kg |
| Rated Payload | Approx. 7,500 kg, subject to chassis certification |
| Passenger Capacity | 3 |
| Approach / Departure Angle | Approx. 19° / 12° |
| Tank Material | Carbon steel, corrosion-protection treatment |
| Tank Structure | Cylindrical vacuum tank with hydraulically operated rear cover |
| Discharge Method | Hydraulic tank tilting and rear-cover opening |
| Chassis Manufacturer | Qingling ISUZU |
| Chassis Model | QL1160-series 4×2 chassis (exact model to be confirmed) |
| Drive Configuration | 4×2, left-hand or right-hand drive |
| Wheelbase | Approx. 4,500 mm (subject to final chassis selection) |
| Transmission | Manual, 6 forward gears and 1 reverse gear |
| Front / Rear Track | Approx. 1,680 / 1,650 mm (model-dependent) |
| Tires | 9.00R20 or equivalent, subject to chassis configuration |
| Number of Tires | 6 + 1 spare |
| Engine Manufacturer | ISUZU |
| Engine Model | 4HK1-series diesel engine (exact variant to be confirmed) |
| Maximum Engine Power | Approx. 190 hp (139 kW), depending on engine version |
| Fuel Type | Diesel |
| Displacement | Approx. 5,193 mL |
| Maximum Torque | Approx. 510 N·m, depending on engine version |
| Vacuum Pump Type | Rotary-vane vacuum pump |
| Vacuum Pump Drive | Power take-off (PTO) |
| Vacuum Pump Operating Speed | Approx. 800–1,400 rpm, depending on pump model |
| Maximum Vacuum | At least 500 mmHg (approx. 66.7 kPa below atmospheric pressure) |
| Suction Depth | More than 6 m under suitable operating conditions |
| Tank Filling Time | Less than 5 minutes under specified test conditions; actual time depends on hose, material, suction depth, and pump performance |
| Pump Rotation Direction | Clockwise, viewed from the specified drive end; confirm with the pump manufacturer |
| Rear Cover | Hydraulic opening with mechanical locking system |
| Liquid-Level Monitoring | Sight window / liquid-level indicator |
| Vacuum Pump | 1 set |
| Vacuum Pipeline and Valves | 1 set |
| Hydraulic Cylinder for Rear Cover | 1 set |
| Hydraulic Cylinder for Tank Tilting | 1 set |
| Vacuum Pressure Gauge | 1 unit |
| Liquid-Level Indicator | 1 unit |
| Rear-Cover Locking System | 1 set |
| Four-Way Valve | 1 unit |
| Moisture Separator | 1 unit |
| Suction Hose and Couplings | 1 set, length and diameter to be confirmed |
| Optional Equipment | Sprinkler system, full-tank alarm, additional suction hoses and fittings |
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