I. Project Background and Procurement Requirements In 2025, a municipal sanitation department in a district of Nanyang City (hereinafter referred to as the 'Procuring Entity') issued a public tender to procure a batch of blue license plate, 3-cubic-meter sludge tipper trucks, aiming to address sludge removal from aging sewer networks and sludge transportation from wastewater treatment plants. According to local procurement practices, the budget was set at approximately RMB 112,000–145,000 per unit, with requirements including: tipper functionality, compliance with China VI emission standards, eligibility for blue license plate registration (drivable with C1 driver’s license), and low total cost of ownership (TCO) over the vehicle’s full lifecycle. Core project requirements: - Vehicle model: Blue license plate, 3-cubic-meter sludge tipper truck; chassis based on Dongfeng D6 series (e.g., CLW5040ZXXD6, per official type-approval parameters). - Application: Sealed sludge transport and self-unloading, suitable for narrow urban roads. - Budget: Approx. RMB 123,000 per unit (per publicly disclosed tender information). - Requirements: Minimum 2-year整车 warranty; nationwide chassis warranty; lifetime after-sales service for the superstructure; delivery cycle ≤15 days. After multiple rounds of evaluation, Chengli Special Purpose Vehicle Co., Ltd. secured the contract by leveraging its integrated advantages: Dongfeng D6 chassis (with nationwide warranty) and in-house manufactured superstructure (offering lifetime service). A total of 10 sludge tipper trucks were delivered. These vehicles are now operational at local wastewater treatment stations and sewer cleaning sites. Customer feedback highlights: 'easy operation, complete unloading, and excellent fuel efficiency.' II. Total Cost of Ownership (TCO) Analysis: 5-Year / 8-Year / 10-Year Lifecycle Costs For government procurement, while initial purchase price is important, total cost of ownership (TCO) remains the decisive factor. Below is a TCO estimation based on the Chengli Dongfeng D6 blue license plate, 3-cubic-meter sludge tipper truck (reference model: CLW5040ZXXD6): | Item | 5-Year Period | 8-Year Period | 10-Year Period | |--------|----------------|----------------|------------------| | Purchase Cost (tax-inclusive landed price) | ~RMB 115,000 | ~RMB 115,000 | ~RMB 115,000 | | Fuel Cost (15,000 km/year; 12 L/100 km) | ~RMB 65,000 | ~RMB 104,000 | ~RMB 130,000 | | Insurance Cost (avg. RMB 4,000/year) | ~RMB 20,000 | ~RMB 32,000 | ~RMB 40,000 | | Maintenance & Repair (routine servicing + consumable parts replacement) | ~RMB 15,000 | ~RMB 28,000 | ~RMB 42,000 | | Major Overhaul (scheduled) | ~RMB 5,000 (minor repair in Year 5) | ~RMB 25,000 (major overhaul in Years 6–8) | ~RMB 40,000 (major overhaul + mid-engine rebuild in Years 8–10) | | Residual Value (after depreciation) | ~RMB 45,000 | ~RMB 20,000 | ~RMB 8,000 | | **Total Cost of Ownership (TCO)** | **~RMB 165,000** | **~RMB 274,000** | **~RMB 359,000** | Note: The above figures are reference values; actual costs may vary depending on usage frequency, road conditions, and fuel price fluctuations. Fuel cost is estimated at RMB 7.5 per liter (current market price). As shown in the table, fuel and maintenance/repair costs increase significantly with extended service life. Chengli’s model—featuring the Dongfeng D6 chassis (nationwide warranty) and in-house superstructure (lifetime service)—reduces labor costs for maintenance and repairs by approximately 15%–20% compared to third-party conversions, and ensures timely spare parts supply, thereby lowering downtime and associated operational costs.