Yantai Dongfeng D6 Blue-Plate Sludge Tipper Truck (3 m³) Government Procurement Case: In-depth Analysis of Chassis Selection and Winning Bid Solution In the municipal sanitation sector, sludge transportation is a critical link ensuring the normal operation of urban drainage systems, river remediation, and wastewater treatment plants. With increasingly stringent environmental regulations and the advancement of refined management, government procurement authorities across China have raised requirements for specialized vehicles—particularly regarding chassis configuration, payload capacity, off-road capability, and maintenance convenience. This article takes a real-world procurement case by a municipal sanitation department in Yantai—acquiring Chengli’s Dongfeng D6-based blue-plate 3 m³ sludge tipper trucks—as its entry point, offering an in-depth analysis of chassis selection, load-bearing and maneuverability performance, and maintenance accessibility to elucidate Chengli Special Purpose Vehicle Co., Ltd.’s winning bid solution, providing reference value for similar procurement projects. I. Project Background and Procurement Requirements In 2025, the Urban Management Bureau of a district in Yantai planned to procure a batch of blue-plate sludge tipper trucks to meet demands arising from urban pipeline desilting and sludge transfer from wastewater treatment plants. Following local procurement conventions, the budget was capped at approximately RMB 135,000 per unit; vehicle gross vehicle weight (GVW) must not exceed 4.5 tons; cargo body volume must be 3 m³; hydraulic tipping functionality is mandatory; and compliance with China VI emission standards is required. Following a public tender process, Chengli Special Purpose Vehicle Co., Ltd. delivered five units of the CLW5030ZWXD6 sludge tipper truck—based on the Dongfeng D6 chassis—at a unit price of approximately RMB 118,000 (per publicly disclosed tender information). This model features a Dongfeng D6 single-row cab, wheelbase of 2,600 mm, a fully domestic 2.3L diesel engine (maximum power: 70 kW) manufactured by Quanchai, and a 5-speed manual transmission. The cargo body is fabricated from carbon steel with internal anti-corrosion treatment; the rear tailgate opens hydraulically, enabling efficient operations in narrow urban streets. Customer feedback indicates stable performance since delivery during pipeline desilting operations across Yantai’s urban area—especially commendable maneuverability in narrow alleys of older districts. II. In-depth Chassis Comparison: Dongfeng, Sinotruk HOWO, Foton Time, and FAW Tiger V In the blue-plate sludge tipper truck segment, leading chassis brands include Dongfeng, Sinotruk HOWO, Foton Time, and FAW Tiger V. Each offers distinct advantages in payload capacity, maneuverability, and service/maintenance convenience. Below is a detailed comparison based on real product data from Chengli’s knowledge base (e.g., CLW5030ZWXD6 specifications) and industry experience. Comparison Dimension Dongfeng D6 Sinotruk HOWO Foton Time FAW Tiger V Representative Chassis Model Dongfeng D6 (wheelbase: 2,600/2,800 mm) Sinotruk HOWO (wheelbase: 2,800 mm) Foton Time M3 (wheelbase: 2,600 mm) FAW Tiger VN (wheelbase: 2,800 mm) Engine Configuration Quanchai 2.3L / Yunnan Internal Combustion 2.0L (70–85 kW) Weichai 2.3L (70–80 kW) Quanchai 2.3L (70 kW) FAW Power 2.2L (70–80 kW) Rated Payload 1.5–2.0 tons 1.6–2.2 tons 1.4–1.8 tons 1.5–1.9 tons Minimum Ground Clearance 190 mm 180 mm 175 mm 185 mm Overall Vehicle Width (mm) 1,900–2,000 1,950–2,050 1,850–1,950