Jingzhou 3308 Sewage Treatment Vehicle EHY5045TWCE6 Government Procurement Case: Heavy-Duty Design for High-Load Operations. In the municipal sanitation sector, sewage treatment vehicles are 'tough nuts' routinely subjected to high-load operations. For instance, the Urban Management Bureau of a district in Jingzhou procured the 3308 sewage treatment vehicle EHY5045TWCE6 due to aging drainage networks in its jurisdiction—resulting in severe overflow pressure following summer rainstorms. Its legacy vacuum trucks could no longer meet demands for rapid, continuous operation. Following an open tender, Chengli Special Purpose Vehicle Co., Ltd. delivered the EHY5045TWCE6 sewage treatment vehicle, with the budget controlled at approximately RMB 397,000 (per publicly available tender information). The unit is now operating stably across multiple key road sections. I. Core Operational Challenge: Equipment Fatigue Management Under High-Load Conditions A municipal sanitation department in Jingzhou faces three primary challenges during daily operations: (1) Dispersed sewage overflow points requiring frequent vehicle repositioning; (2) High-volume treatment requirements, often necessitating 4–6 consecutive hours of single-shift operation; and (3) Harsh working conditions—sewage containing solid particulates and oil severely stresses pumps and piping systems. Conventional equipment frequently suffers from pump wear, pipeline blockages, and hydraulic system overheating, leading to high unscheduled maintenance frequency. The EHY5045TWCE6 sewage treatment vehicle by Chengli Special Purpose Vehicle Co., Ltd. is engineered specifically for heavy-duty applications, with core technical parameters derived from MIIT-approved models (e.g., mature platform CLW5070GSSD6). Key features include: • Reinforced Pump System: Equipped with wear-resistant alloy impellers and high-capacity self-priming pumps, capable of handling sewage with ≤5% sand content—boosting continuous operational efficiency by over 30%. • Intelligent Hydraulic Temperature Control: Features an air-cooled hydraulic oil radiator to prevent excessive oil temperature rise during prolonged high-load operation, ensuring system stability. • Clog-Resistant Piping Design: Intake pipelines use enlarged-diameter (DN150) tubing with integrated back-flush functionality, significantly reducing blockage risks. According to client feedback, during overflow response operations on a Jingzhou street, the vehicle reduced single-operation time from 3 hours to 1.5 hours—with zero mechanical failures reported—substantially lowering O&M costs. II. Comparative Data: EHY5045TWCE6 vs. Conventional Models | Parameter | EHY5045TWCE6 Sewage Treatment Vehicle | Conventional 8-cbm Vacuum Truck (Reference) | |-----------|----------------------------------------|----------------------------------------------| | Chassis Model | Dongfeng 3308 (China VI) | Dongfeng Dolika (China VI) | | Tank Capacity | 4.5 cbm (Sewage Treatment System) | 8 cbm (Vacuum Tank) | | Pump Flow Rate | ≥80 m³/h | ≥60 m³/h | | Maximum Suction Depth | 7 meters | 5 meters | | Hydraulic Cooling | Air-Cooled Radiator | Natural Cooling | | Continuous Operation Time | ≥6 hours (no overheating) | ≤3 hours (requires shutdown for cooling) | | Sand Content Tolerance | ≤5% | ≤2% | | Reference Landed Price (2026, VAT-inclusive) | ~RMB 320,000–380,000 | RMB 145,000–178,000 (for 8-cbm vacuum truck) | | Typical Application Scenario | High-load, harsh-condition operations | Routine municipal vacuuming | As shown above, although the EHY5045TWCE6 carries a higher price tag, it delivers targeted optimization for high-load operations—making it ideal for sanitation authorities with ample budgets and stringent reliability requirements. For cost-conscious buyers, Chengli also offers...