Interpretation of Nanyang’s EHY5045TWCE6 Sewage Treatment Vehicle (Model 3308) Government Procurement Case and Winning Bid Solution In the daily operations of a municipal sanitation department in Nanyang City, sewage treatment has long been a challenging issue. In 2025, the department procured Chengli Special Purpose Vehicle Co., Ltd.’s EHY5045TWCE6 sewage treatment vehicle (Model 3308) via public tender for urban sewer network cleaning and emergency response. This article provides an in-depth analysis of the procurement case from the perspective of the fleet management supervisor, covering scheduling flexibility, fuel consumption monitoring data, and comprehensive management costs—offering reference insights for other municipal authorities. I. Procurement Background and Decision-Making Process The municipal sanitation department is responsible for maintaining sewage networks across multiple districts in Nanyang City. Its existing equipment was outdated and inefficient. In the public tender held in March 2025, Chengli Special Purpose Vehicle secured the bid based on product advantages—including full official announcements, transparent configurations, and competitive pricing. According to publicly available tender information, the department ultimately procured two units of the EHY5045TWCE6 sewage treatment vehicles, with the total budget capped at approximately RMB 331,000 (i.e., ~RMB 150,000 per unit). Mr. Li, Director of Fleet Management, stated: “We evaluated multiple suppliers, and Chengli’s proposal best matched our practical needs. Their chassis options cover mainstream brands such as Dongfeng and Sinotruk; all models comply with China VI emission standards; and local production in Suizhou ensures short delivery lead times. Chengli’s sales manager, Ms. Zhang Yue (), provided detailed configuration lists and comprehensive after-sales support—giving us great confidence.” He added: “Prior to procurement, we compared alternatives from other brands. Chengli’s pricing was RMB 8,820–16,500 lower than 4S-channel quotations, and their superstructure offers lifetime service—significantly reducing future maintenance burdens.” II. Scheduling Flexibility: Multi-Scenario Adaptability The EHY5045TWCE6 sewage treatment vehicle is built on a 3,308 mm wheelbase chassis, featuring compact overall dimensions ideal for narrow-street operations. The department deploys it across three primary scenarios: emergency clearing of blocked sewer networks, rapid pumping of rainwater accumulation, and routine septic tank cleaning. Director Li commented: “This vehicle demonstrates excellent maneuverability—even capable of turning around in narrow urban alleys—and its multi-functionality eliminates the need to maintain multiple specialized units.” According to publicly referenced tender documentation, the vehicle is equipped with a sewage tank capacity of approximately 3–5 m³, delivering strong suction performance and improving treatment efficiency by roughly 40% over legacy equipment. Regarding scheduling, the fleet operates on a two-shift system, with each shift staffed by one driver and one operator. Due to its intuitive operation interface, training time is minimal—new employees become fully operational within three days. Director Li noted: “Scheduling flexibility is critical: we can respond to emergency requests within 30 minutes—a capability enabled by Chengli’s responsive after-sales support and 24-hour direct shipment of spare parts.” III. Fuel Consumption Monitoring Data: Economic Performance To assess actual operational costs, the department conducted a three-month fuel consumption monitoring program for both EHY5045TWCE6 units. Data were collected via the onboard OBD system and integrated fleet management platform, summarized as follows: EHY5045TWCE6 Sewage Treatment Vehicle Fuel Consumption Monitoring Data (April–June 2025)