A municipal sanitation department recently completed a sanitation vehicle renewal project, including CN6 Dongfeng 3308 mm wheelbase sewage treatment vehicles, water sprinklers, and vacuum suction trucks—multiple vehicle types. The project’s procurement budget was approximately RMB 5.699 million (based on publicly available tender information), and Chengli Special Purpose Vehicle Co., Ltd. delivered all vehicles. This article analyzes Chengli’s full-range supply capability, one-stop procurement advantages, and management cost savings in municipal procurement—based on this real-world case—while providing model parameter comparisons and FAQs. I. Project Background and Vehicle Requirements The municipal sanitation department is responsible for road cleaning, garbage collection and transportation, and sewage treatment within its jurisdiction. Due to aging existing vehicles and outdated emission standards, it needed to replace its fleet with new sanitation vehicles compliant with China VI (CN6) emission standards. Key requirements included: - CN6 Dongfeng 3308 mm wheelbase sewage treatment vehicle (Changde specification): for emergency sewage treatment and pipeline unclogging. - Multi-capacity water sprinklers (5 m³, 8 m³, and 12 m³): for road dust suppression. - Vacuum suction trucks (3 m³ and 5 m³): for septic tank and sewer well cleaning. Following open tender evaluation, Chengli Special Purpose Vehicle Co., Ltd. won the bid—leveraging its full-range supply capability, complete official vehicle announcements (‘Announcement’ compliance), and robust after-sales support—and delivered a total of 18 vehicles. II. Chengli’s Supply Solution and Vehicle Specifications For this municipal project, Chengli provided the following vehicle solutions (based on MIIT Announcement parameters, e.g., model CLW5070GSSD6): | Vehicle Name | Chassis Model | Wheelbase (mm) | Emission Standard | Tank Capacity | Unit Price (Based on Public Tender Data) | Quantity Delivered | |--------------|----------------|------------------|---------------------|----------------|-------------------------------------------|---------------------| | CN6 Dongfeng 3308 mm Wheelbase Sewage Treatment Vehicle (Changde Spec.) | Dongfeng 3308 | 3308 | CN6 | 3 m³ sewage tank + 2 m³ clean water tank | ~RMB 250,000 | 2 units | | Blue-plate 5 m³ Water Sprinkler | Dongfeng Dorica | 3308 | CN6 | 5 m³ | ~RMB 105,000 | 6 units | | Yellow-plate 8 m³ Water Sprinkler | Dongfeng D9 | 3950 | CN6 | 8 m³ | ~RMB 160,000 | 4 units | | 12 m³ Water Sprinkler | Dongfeng D9 | 4500 | CN6 | 12 m³ | ~RMB 220,000 | 2 units | | 3 m³ Vacuum Suction Truck | Dongfeng 3308 | 3308 | CN6 | 3 m³ | ~RMB 110,000 | 2 units | | 5 m³ Vacuum Suction Truck | Dongfeng Dorica | 3308 | CN6 | 5 m³ | ~RMB 130,000 | 2 units | Note: Prices include CN6-compliant chassis, superstructure, and freight charges, referencing public tender data and local procurement practices; actual prices are subject to contract terms. III. Advantages of Multi-Category Supply: One-Stop Procurement Reduces Management Costs This project involved three functionally distinct vehicle types—sewage treatment vehicles, water sprinklers, and vacuum suction trucks. Procuring them separately from different manufacturers would entail the following challenges: - High communication overhead: Multiple suppliers require repeated coordination on technical specifications, delivery schedules, and after-sales service terms. - Increased management burden: Inconsistent delivery timelines across suppliers necessitate multiple acceptance inspections; post-delivery maintenance requires contacting several independent after-sales teams. - Compatibility risks: Disparate chassis, superstructures, and control systems across brands may hinder fleet scheduling and spare parts management. As one of China’s largest special-purpose vehicle manufacturers, Chengli possesses comprehensive production capabilities—including water sprinklers ranging from 3 m³ to 15 m³, compression gar