The Beiben 2638 heavy-duty vacuum suction truck is powered by a 380 hp engine, features a tank volume of 20 cubic meters, and is equipped with a high-efficiency water-ring vacuum pump that achieves a suction range of 9 meters. With strong load-bearing capacity, rapid suction, and a fully opening rear cover for easy discharge, it is widely used for septic tank cleaning and pipeline maintenance, making it a reliable heavy-duty choice for municipal sanitation and industrial sewage disposal.
Working Capcity:
20000 litersCabin Type:
NG80B long cabin, 2 seats and one sleeperDimension ( mm ) :
9420×2500×3455Drive System:
6×4, LHDWheelbase (mm):
4450+1450Engine Power:
380HP/WP10.380E32Gear Box:
12JS200TTyres:
12.00R20, 10+1 pcsRemark:
6×6, RHD drive, MORO/Jurop pump is optional⇒ Product Description
The Beiben 2638 20,000-liter septic tank truck is a large-capacity specialized sanitation vehicle. It is powered by a Weichai 380 hp engine mated to a FAST 12-speed transmission, with a 6×4 drive configuration and a gross vehicle weight of 26 tons. The tank is made of 6-mm carbon steel and works with a 2BE-204 water-ring vacuum pump, which delivers a maximum pumping speed of 20.5 m³/min and a suction range of 9 meters. The tank can be raised to a tilt angle of ≥45°, and the rear cover can be fully opened for efficient unloading.
This vehicle is extensively used for septic tank cleaning, pipeline network maintenance, and industrial waste liquid transfer. Its strengths lie in strong load capacity, fast suction, and stable operation. The cab is equipped with air conditioning and an air-suspension seat for enhanced comfort; features such as a liquid level alarm, dual-side pipe racks, and exhaust braking ensure safe and reliable operation, making it an ideal heavy-duty unit for municipal sanitation and engineering sewage disposal.

⇒ Beiben 20000L vacuum truck specifications
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Beiben 2638 20000 liters Septic Tank Truck Specifications |
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Vehicle model |
CEEC5260GXW |
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Cab |
NG80 long cab, air suspension seat, 2 seats, cooling and heating air conditioner, steering wheel can be adjusted, digital instrument |
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Driving type |
6×4 left hand drive |
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Max driving speed (km/h) |
89 |
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Overall dimension(mm) |
9420×2500×3455 |
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GVW( kg) |
26000 |
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Curb weight ( kg) |
13500 |
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Wheelbase(mm) |
4450+1450 |
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Front wheel track (mm) |
1995 |
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Rear wheel track (mm) |
1800/1800 |
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Front/rear leaf springs |
10/13 pcs |
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Tire |
12.00R20 (10+1 pcs) |
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Clutch |
430 Single disc, dry type, friction clutch |
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Steering gear |
8098 Circulating ball steering gear, hydraulic booster |
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Gear box |
FAST 12JS200T, 12-speed, manual |
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Axles |
Front axle |
7.5T |
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Rear axle |
13T+13T |
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Engine |
Model |
WP10.380E32 |
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Fuel Type |
Diesel |
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Type |
6 cylinders, water-cooled 4-stroke, direct injection, turbocharged |
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| Emission standard |
Euro 3 |
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Displacement (ml) |
9726 |
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Max output power/rotate speed (hp /rpm ) |
380/2200 |
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Max torque/ speed(N.m/rpm) |
1600/1500~1800 |
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Braking system |
Service Brake |
Double circulation air brake system |
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Park Brake |
Energy storage spring brake |
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Auxiliary brake |
Engine exhaust brake |
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Upper-Body Specification |
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Volume of tank |
20000 liters |
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Material of tank |
Carbon steel (Q235B), 6mm thickness |
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Special function |
Suction height |
≥9(m) |
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Suction time |
250(S) |
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Tank lifting angle |
≥45° |
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Lifting time |
≤45 S |
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Rear cover opening angle |
≥75° |
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Rear cover opening time |
≤25 S |
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Suction hose |
10m length and 100 mm in diameter |
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Hose racks |
Installed on both sides of tank |
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Fittings |
Four-way valve fitted to pump Liquid level alarm in cabin |
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Vacuum pump |
Type |
Water circulation vacuum pump |
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Model |
2BE-204 |
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Max. pressure |
8000 pa |
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Rated Rotational Speed |
980 rpm |
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Max Pumping Speed |
20.5 m3/min |
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⇒ Features of Beiben 20000L sewage truck

☑ Large Tank Capacity: The 20,000-liter carbon steel tank allows for a large single-trip load, significantly improving work efficiency.
☑ Powerful Engine: Weichai WP10.380E32 engine delivering 380 hp, FAST 12-speed transmission, ensuring ample power for heavy-start and climbing conditions.
☑ High-Efficiency Vacuum Pump: 2BE-204 water circulation vacuum pump, max pumping speed of 20.5 m³/min and a pressure of 8000 Pa, providing rapid and stable suction capable of handling various viscous wastes.
☑ Strong Load Capacity: Benz technology 7.5-ton front and dual 13-ton rear axles, together with 12.00R20 tires and 10/13-leaf springs, ensuring a stable and durable chassis under heavy-duty operations.
⇒ Vacuum pump of Beiben 2638 sewer vacuum truck

Water circulation vacuum pump 2BE-204
The water circulation vacuum pump is mainly composed of a pump body, an eccentrically mounted impeller, side covers, an intake port, and an exhaust port. Working principle: When the impeller rotates, water forms a water ring under the action of centrifugal force, creating multiple enclosed cavities between the water ring and the impeller blades. During the first half of the rotation, the cavity volume increases, drawing in gas; during the second half, the cavity volume decreases, compressing and discharging the gas. The water ring serves both sealing and cooling functions.
⇓ Water circulation vacuum pump structure⇓

⇒ Details of Beiben 6×4 heavy vacuum pump truck
⇒ Beiben 6×4 septic pump truck display
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