HOWO 4x2 VS 6x4 Sewage Suction Truck: How to Choose Correctly?

When purchasing a HOWO vacuum suction truck, 80% of people will struggle with the choice between "6x4 and 4x2" model — someone think the 4x2 is cheaper and more hassle-free, worrying that the 6x4 is a waste; others want to choose the 6x4 in one step, but are afraid of exceeding the budget and not being able to make full use of its advantages. The core issue is "matching your own operational needs." This article provides a comprehensive comparison from key dimensions such as load capacity, power, efficiency, and cost, helping you avoid common purchasing mistakes and accurately select the model that best suits your needs..

★ Load Capacity & Tank Volume: Larger is Not Better—Sufficient is Best

Many people assume that "a larger tank means more practicality," but this is not the case. For short-distance operations in residential communities, a HOWO 4x2 model sewage vacuum truck with around 10m³ is fully adequate. Choosing a 6x4 model with a 20m³ tank not only incurs a higher purchase cost but also increases fuel consumption and vehicle wear due to empty or half-loaded operation.

Conversely, for large-scale municipal dredging, the small tank of a 4x2 will require more than 10 round trips per day, wasting labor hours. In this case, the large tank of a HOWO 6x4 (16–22m³) can reduce round trips by more than half, greatly improving efficiency.

Below is a comparison of key specifications for several HOWO 4x2 and 6x4 sewage suction truck models.

★ Comparison of HOWO 4X2 and 6x4 sewage suction truck

★ Which type of HOWO vacuum tank truck will you choose — 6x4 or 4x2?

(I) Choose 4x2 Vacuum Truck

• Operating Scenarios: Primarily in urban areas, residential communities, and small industrial parks. Small operating range, flat roads, no steep slopes or muddy roads.

• Operating Requirements: Small single-trip volume (≤15m³), mainly for septic tank suction and small pipeline dredging, no long-distance transport required.

• Budget Constraints: Limited budget.

(II) Choose 6x4 Vacuum Truck

• Operating Scenarios: Municipal pipeline dredging, industrial waste liquid/sludge transport, large-scale rural sewage treatment. Large operating range, frequently involves mountain roads, muddy roads, and steep slopes.

• Operating Requirements: Large single-trip volume (≥15m³), requiring efficient transport, reducing round trips, and prioritizing long-term operating efficiency.

• Usage Requirements: Long-term, high-frequency operation (more than 8 hours per day). Emphasis is placed on vehicle reliability and durability, aiming to reduce long-term maintenance costs.

• Budget: 6x4 model can be selected if the budget is sufficient.