Chengli Dongfeng Dual-Cab Sludge Suction Trucks Delivered in Bulk to Eerguna City, Inner Mongolia: A Case Study of the Blue-Plate 3-cubic-Meter High-Efficiency Sludge Removal Project Key Highlights: In June 2026, Chengli Special Purpose Vehicle Co., Ltd. completed the bulk delivery of ten Dongfeng dual-cab blue-plate 3-cubic-meter sludge suction trucks to the municipal authority of Eerguna City, Inner Mongolia Autonomous Region. These vehicles are deployed for sludge removal operations in urban drainage networks, rivers, and low-lying areas. Built on Dongfeng chassis with Chengli’s proprietary superstructure, the trucks feature a blue license plate (drivable with Class C driver’s license), a 3-cubic-meter tank, and an optimal balance between maneuverability and operational efficiency. From contract signing to delivery, the project was completed in just 12 days—well under the industry average of 30 days. The all-inclusive landed price includes vehicle purchase tax, ranging from RMB 131,000 to 158,000 per unit—approximately RMB 12,000 less than comparable market offerings. Chengli provides lifetime after-sales support and 24-hour direct shipment of spare parts, ensuring reliable operation even in extreme cold conditions. I. Project Background: Upgrading Eerguna City’s Drainage System Eerguna City is located in Hulunbuir City, Inner Mongolia Autonomous Region—a high-latitude, frigid region. Although annual precipitation is moderate, it concentrates heavily during summer; moreover, spring thawing of the seasonal frost layer frequently causes blockages in drainage pipelines. The city’s existing sludge removal equipment is outdated—mostly medium-sized yellow-plate vehicles—limiting operations in narrow streets and residential neighborhoods. Additionally, most units comply only with China IV or V emission standards, facing imminent phase-out pressure. In early 2026, Eerguna launched a comprehensive drainage system upgrade initiative and issued procurement requirements for new blue-plate sludge suction trucks, specifying: • Blue license plate eligibility (Class C driver’s license compatible) and gross vehicle weight ≤ 4,500 kg to comply with urban traffic restrictions; • Tank capacity ≥ 3 m³ to support continuous single-shift operations; • China VI emission compliance, meeting national and Inner Mongolian registration requirements; • Chassis capable of reliable cold-start performance in sub-zero environments; • Delivery within ≤ 20 days to prepare for the upcoming flood season. II. Solution: Chengli-Dongfeng Dual-Cab Blue-Plate 3-m³ Sludge Suction Truck Based on Eerguna’s specifications, Chengli Special Purpose Vehicle Co., Ltd. proposed its Dongfeng dual-cab blue-plate 3-m³ sludge suction truck (Model CLW5040TQYD6). This model is built upon the Dongfeng Dorica chassis and features a dual-row cab accommodating up to five personnel—ideal for on-site crew deployment. Key technical specifications are as follows: | Parameter | Technical Specification | Notes | |------------------------|-----------------------------------------------|-----------------------------------------------------------------------| | Chassis Brand | Dongfeng (Dorica) | Authorized first-tier distributor; factory-backed warranty | | Engine | Quanchai 2.3L, China VI compliant | Cold-climate version with pre-heating system | | Gross Vehicle Weight | 4,495 kg | Blue-plate eligible; Class C license sufficient | | Tank Capacity | 3 m³ | Stainless-steel inner lining for corrosion resistance | | Sludge Removal System | Hydraulic-driven, dual-mode (suction & discharge) | Suction lift ≥ 8 m; discharge distance ≥ 15 m