Zhengzhou’s Government Procurement Case for the EHY5045TWCE6 Sewage Treatment Vehicle — Project Overview and Solution Analysis. Manager’s Perspective: First-hand Feedback from the Fleet Management Supervisor. In 2026, a district Urban Management Bureau in Zhengzhou selected the EHY5045TWCE6 sewage treatment vehicle delivered by Chengli Special Purpose Vehicle Co., Ltd. Built on a Dongfeng light-duty chassis and compliant with China VI emission standards, this vehicle is primarily deployed for treating small- to medium-sized sewage ponds and emergency cleanup tasks within urban areas. Zhang Captain, head of fleet management, stated in an interview: “Previously, we used conventional vacuum trucks—low efficiency and cumbersome dispatching. This time, we chose the EHY5045TWCE6 mainly for its integrated design: suction, solid-liquid separation, and preliminary treatment all performed onboard, eliminating intermediate transfer steps.” Per local procurement practices, the project budget was capped at approximately RMB 390,000. Chengli’s proposal included the complete vehicle plus one year of free upper-structure service, priced at around RMB 328,000 (based on publicly available tender information). Zhang Captain added: “Chengli operates a manufacturing facility in Suizhou; standard models can be delivered within 7–15 days. In our case, delivery took only 11 days from contract signing to vehicle pickup—significantly faster than anticipated.” Operational Flexibility: A ‘Mobile Treatment Station’ for Dynamic Scenarios The EHY5045TWCE6 was designed specifically to address decentralized sewage treatment points. Based on a Dongfeng chassis (official announcement model: CLW5045TWCE6 per Chengli’s product database), the vehicle measures under 6 meters in length and approximately 2.1 meters in width—enabling agile maneuvering and turning in narrow streets and residential neighborhoods. Zhang Captain cited an example: “Last month, we responded to an urgent overflow incident at an old residential compound’s septic tank. Conventional vacuum trucks required coordination between at least two vehicles, whereas the EHY5045TWCE6 completed both suction and preliminary treatment independently—reducing manpower and resource requirements by one full vehicle.” The vehicle features a sewage tank capacity of approximately 3.5 m³ and a treatment capacity of 8–10 m³/hour, ideal for small- to medium-scale operations. According to dispatch logs, the vehicle typically handles 6–8 task locations per week, covering main roads, alleys, and urban villages. Zhang Captain remarked: “Compared with other brands we’ve previously used, the EHY5045TWCE6 demonstrates notably faster response from its hydraulic pump and motor systems—entering operational status within just two minutes after startup, significantly improving dispatch efficiency.” Fuel Consumption Monitoring Data: Energy Efficiency of the China VI Chassis Fuel consumption constitutes a major component of municipal sanitation operating costs. Per the MIIT official announcement parameters (model CLW5045TWCE6), the vehicle is equipped with a Dongfeng China VI diesel engine (2.8L displacement, rated power ~85 kW). Actual usage data collected by Zhang Captain’s team over the first three months are summarized in Table 1. Table 1: Fuel Consumption Monitoring Data for EHY5045TWCE6 (First Three Months) — Zhengzhou District Urban Management Bureau Month | Distance Traveled (km) | Operational Hours (h) | Total Fuel Consumption (L) | Fuel Consumption per 100 km (L/100 km) | Fuel Consumption per Operational Hour (L/h) Month 1