Isuzu 700P 5.5m³ Vacuum Sludge Truck
Isuzu 700P 4×2 5.5 m³ Vacuum Sewage Truck
The Isuzu 700P 4×2 vacuum sewage truck is designed for septic tank evacuation, sewage collection, sludge removal, drainage maintenance, and municipal sanitation work. Built on the Isuzu 700P Euro III chassis, it combines a 5.5 m³ vacuum tank, rotary vane vacuum pump, hydraulic tank tipping system, and hydraulic rear door for efficient suction and discharge operations.
5.5 m³ Reinforced Vacuum Tank
The cylindrical vacuum tank provides an effective capacity of 5.5 m³ and is fabricated from Q235B carbon steel with a 6 mm shell and 8 mm end plates. Three internal anti-surge baffles reduce liquid movement during transportation, while the protective coating, sealed rear door, liquid level sight glass, and safety railing support regular sanitation operations.
XD-420 Rotary Vane Vacuum System
The oil-lubricated XD-420 rotary vane vacuum pump provides an air displacement of approximately 420 m³/h and a maximum vacuum of at least -0.093 MPa. With a vertical suction depth of 8 meters or more and two 8-meter suction hoses, the system is configured for septic waste, liquid sludge, sewer sediment, slurry, and similar materials.
Hydraulic Tank Tipping and Rear Discharge
A CB-FC32 hydraulic gear pump supplies 16 MPa system pressure for tank tipping and rear door operation. The double-acting cylinders provide a tipping angle of at least 45°, while the hydraulic rear door facilitates discharge of sludge and sediment. A mechanical safety support rod is provided for maintenance work with the tank raised.
Isuzu 700P Euro III Powertrain
The Isuzu 4HK1-TC four-cylinder diesel engine delivers 129 kW (175 HP) and 500 N·m of torque, providing suitable low-speed performance for PTO-driven sanitation equipment. The MLD-6Q six-speed manual transmission, reinforced leaf-spring suspension, 4×2 drivetrain, and 8.25R20 all-steel radial tires form a practical chassis for municipal and utility applications.
Integrated Vacuum Safety and Control
The vacuum system incorporates an automatic float-type overflow protection valve, vacuum safety valve, oil mist separator, moisture separator, and vacuum pressure gauge. A rear-side manual control station manages hydraulic functions, while the pneumatic PTO transfers chassis power to the vacuum and hydraulic systems.
Vacuum System Parameters
| Item | Details |
|---|---|
| Type | Vacuum sewage truck / vacuum tanker, designed for septic tank evacuation, sewage collection, sludge removal, drainage maintenance, and municipal sanitation operations |
| Tank Capacity | 5.5 m³ |
| Pump Type / Model | Oil-lubricated rotary vane vacuum pump, Model XD-420 |
| Vacuum Degree / Airflow | Maximum vacuum ≥ -0.093 MPa; air displacement 420 m³/h (approx. 7,000 L/min); maximum vertical suction depth ≥ 8 m; maximum horizontal suction distance ≥ 30 m |
| Drive Mode | Side-mounted pneumatic PTO, PTO-driven through reinforced propeller shaft; also drives the hydraulic system |
| Tank Material / Thickness | Q235B carbon steel; shell thickness 6 mm; head thickness 8 mm; internal epoxy anti-corrosion coating and external polyurethane topcoat |
| Internal Structure | 3 arc-shaped anti-surge baffles; tubular liquid level sight glass; automatic float-type overflow protection |
| Boom | No independent suction boom; suction hoses stored on coated carbon-steel hose rack |
| Suction Hose | Ø50 mm reinforced rubber hose, 8 m × 2 sections, with stainless-steel flared suction nozzle |
| Discharge Method | Gravity discharge and positive-pressure discharge; hydraulic tank tipping with maximum tipping angle ≥ 45°; sealed hydraulic quick-opening rear door |
Chassis Parameters
| Item | Details |
|---|---|
| Chassis Brand/Model | Isuzu QL1100ANMAY, Isuzu 700P Series |
| Drive Type | 4×2, rear-wheel drive |
| Engine Model / Power | Isuzu 4HK1-TC, 129 kW (175 hp) @ 2,600 rpm |
| Emission Standard | EURO III, water-cooled EGR, without SCR/urea system |
| Gearbox / Gears | Isuzu MLD-6Q, 6-speed manual, 6 forward + 1 reverse |
| Wheelbase | 3,815 mm |
| Wheel Track (Front/Rear) | Front: 1,680 mm / Rear: 1,650 mm |
| GVW | 9,975 kg |
| Curb Weight | Approx. 5,780 kg |
| Tire Size | 8.25R20 all-steel radial tires, 6 + 1 spare tire |
| Cab | Isuzu 700P single-row tilting cab, 3 seats, heating and cooling A/C, power windows, central locking, and suspension-type driver's seat |




