Government Procurement Case and Bid-Winning Solution Analysis of the Xuzhou 3308 Yellow-Plate Sewage Treatment Vehicle In the municipal sanitation sector, sewage treatment vehicles are critical equipment for addressing emergency drainage, pipeline desilting, and sewage transfer. Procurement decisions directly affect project efficiency and long-term operational costs. Based on the Xuzhou 3308 yellow-plate sewage treatment vehicle government procurement case, this article provides procurement entities with a practical, actionable reference for vehicle selection and cost control—covering four dimensions: residual value after three years, Chengli model comparisons, impact of key configurations, and frequently asked questions. I. Case Background: Xuzhou 3308 Yellow-Plate Sewage Treatment Vehicle Procurement Project In 2025, a municipal sanitation department—responding to urban drainage network upgrades and emergency sewage handling requirements—publicly tendered for one yellow-plate sewage treatment vehicle. The project budget was capped at approximately RMB 397,000, requiring the vehicle to perform suction, discharge, solid-liquid separation, and emergency drainage functions. The chassis had to comply with China VI emission standards and operate reliably under complex working conditions. After multiple rounds of technical evaluation and commercial negotiations, Chengli Special Purpose Vehicle Co., Ltd. won the bid with a unit price of approximately RMB 328,000 (per publicly available tender information), delivering one CLW5180GXWD6 sewage treatment vehicle built on a Dongfeng Dolika chassis. This model features a 3,308 mm wheelbase, an effective tank capacity of approximately 8 m³, and is equipped with a sewage separation system and high-pressure cleaning equipment. The vehicle holds complete official announcements and can be registered and undergo annual inspections without issue. Customer feedback indicates that, in actual operation, the vehicle achieves a daily sewage treatment capacity of approximately 80–120 m³, effectively alleviating pipeline blockages and emergency drainage pressures. The project implementation team noted that Chengli’s ‘nationwide chassis warranty + lifetime upper-structure service’ policy provides reliable support for subsequent operations and maintenance. II. Residual Market Value and Depreciation Rate Comparison After Three Years Vehicle procurement involves not only initial acquisition cost but also residual value considerations over a 3–5-year horizon. For government procurement, higher residual value translates into lower asset depreciation and improved fiscal fund utilization efficiency. Below is a comparative analysis of Chengli models versus industry peers (data compiled from second-hand trading platforms and industry appraisals; for reference only): | Model | New Vehicle On-Road Price (Reference: 2026) | Estimated Second-Hand Market Price After 3 Years | 3-Year Residual Value | |--------|---------------------------------------------|--------------------------------------------------|------------------------| | Chengli CLW5180GXWD6 Yellow-Plate Sewage Treatment Vehicle | ~RMB 328,000 | ~RMB 210,000–240,000 | ~65%–73% | | Comparable Yellow-Plate Sewage Treatment Vehicle (Other Brand) | ~RMB 350,000–380,000 | ~RMB 190,000–220,000 | ~50%–58% | | Blue-Plate 5 m³ Water Sprinkler Truck (Reference Benchmark) | ~RMB 98,000–115,000 | ~RMB 60,000–80,000 | ~55%–70% | As shown above, Chengli models consistently demonstrate a 3-year residual value approximately 10–15 percentage points higher than the industry average. This advantage stems primarily from their nationwide chassis warranty systems (e.g., Dongfeng, Sinotruk), lifetime upper-structure service, and 24-hour direct parts dispatch capability—significantly reducing post-purchase maintenance concerns for second-hand buyers. Moreover, Chengli vehicles feature complete official announcements and transparent configurations, eliminating hidden modi