Jinan Municipal Government Procurement Case for Dongfeng’s New Sewage Treatment Vehicle: Environmental Project Bid-Winning Solution and Technical Specifications Analysis. In spring 2025, the Urban Management Bureau of a district in Jinan City launched a public tender for a batch of new Dongfeng sewage treatment vehicles to address black-and-odorous water body remediation and emergency sewer network maintenance within the urban area. With a project budget of approximately RMB 498,000, Chengli Special Purpose Vehicle Co., Ltd. won the bid and delivered two Dongfeng-chassis sewage treatment vehicles (model CLW5070GSSD6) at a unit price of approximately RMB 398,000 (per publicly available tender information). This case provides a detailed breakdown of the winning solution, focusing on component procurement, cost control, and after-sales service—offering practical reference for municipal authorities. I. Project Background and Procurement Requirements As a key city for ecological protection in the Yellow River Basin, Jinan imposes stringent requirements on sewage treatment equipment. The district’s Urban Management Bureau explicitly stipulated in its tender documents the following requirements: a Dongfeng chassis compliant with China VI emission standards; tank capacity of no less than 6 m³; integrated functions including vacuum suction, solid-liquid separation, and on-board wastewater treatment; and full compliance with local vehicle registration, annual inspection, and commercial operation regulations. After multiple rounds of evaluation, Chengli Automotive secured the contract by virtue of its complete official certifications, transparent configuration details, and localized service advantages. II. Key Technical Specifications of the Winning Solution The CLW5070GSSD6 sewage treatment vehicle supplied by Chengli is built upon the Dongfeng Dorica chassis, featuring a 3,800 mm wheelbase and powered by a China VI-compliant diesel engine. Core specifications are as follows: - Chassis Model: Dongfeng EQ1075SJ3CDF (nationwide warranty) - Tank Capacity: 6 m³, carbon steel with anti-corrosion coating - Wastewater Treatment System: Vacuum pump + screw extrusion dewatering unit; treatment capacity ≥10 m³/h - Emission Standard: China VI, fully compliant with Jinan’s environmental regulations - Official Announcement Number: CLW5070GSSD6 (complete technical parameters registered with the Ministry of Industry and Information Technology) This vehicle features transparent configuration and does not adopt bundled pricing. Customers may optionally equip hydraulic reels or high-pressure cleaning nozzles based on actual operational needs. III. Component Procurement and Cost Analysis In government procurement, component acquisition cost constitutes a major portion of long-term operating expenses. Chengli’s transparent parts list and pricing were pivotal to its successful bid. Below is a comparative analysis of consumable part costs between Chengli’s direct sales channel and authorized 4S dealers (based on publicly available tender data): Comparison of Consumable Part Prices for Dongfeng Sewage Treatment Vehicles: | Part Name | Chengli Direct Sales Price (RMB) | 4S Dealer Channel Price (RMB) | Price Difference (RMB) | |------------------------|-----------------------------------|----------------------------------|-------------------------| | Vacuum Pump Assembly | ~2,800 | ~3,600 | Savings ~800 | | Screw Extruder Blade Set | ~1,200/set | ~1,500/set | Savings ~300 | | Sealing Ring Kit | ~450 | ~600 | Savings ~150 | | Hydraulic Hose (2 m) | ~180 | ~250 | Savings ~70 | | Filter Mesh Assembly | ~900 | ~1,200 | Savings ~3