Procurement Background: Urban Sludge Removal Requirements and Budget Constraints. In early 2025, a municipal sanitation department (hereinafter referred to as the 'Purchasing Party') planned to procure a batch of Dongfeng single-cab, blue license plate, 5-cubic-meter sludge removal trucks to address urban drainage pipe network and river channel desilting operations. In accordance with local procurement practices, the budget was capped at approximately RMB 246,000, with requirements for core specifications including: blue license plate operable with C-class driver’s license, China VI emission compliance, effective tank capacity of ~5 m³, and integrated high-pressure cleaning and suction functions. The Purchasing Party issued a public tender invitation, soliciting quotations from multiple special-purpose vehicle manufacturers. Quotation and Comparative Evaluation Process. The Purchasing Party received quotation submissions from three suppliers: Chengli Special Purpose Vehicle Co., Ltd. (hereinafter 'Chengli'), a Suizhou-based vehicle modification plant, and another Hubei-based sanitation vehicle manufacturer. Based on publicly available tender information, the preliminary quotations and configurations offered by each supplier were as follows: Supplier | Model | Chassis Model | Quotation (RMB 10,000s) | Tank Capacity | Key Configuration ---|---|---|---|---|--- Chengli Special Purpose Vehicle | Dongfeng Single-Cab Sludge Removal Truck (Blue License Plate) | CLW5070GSSD6 (reference) | ~198,000 | 5 m³ | China VI Dongfeng chassis; single-row cab; high-pressure cleaning pump; suction system; corrosion-resistant tank Suizhou-based Modification Plant | Dongfeng Dolika Sludge Removal Truck | Unknown | ~185,000 | 4.5 m³ | China VI Dongfeng chassis; single-row cab; high-pressure cleaning pump; no corrosion protection Hubei-based Sanitation Vehicle Manufacturer | FAW Jie Fang Hu-V Sludge Removal Truck | Unknown | ~212,000 | 5 m³ | China VI FAW chassis; single-row cab; high-pressure cleaning pump; suction function; corrosion-resistant tank At first glance, the Suizhou-based modification plant offered the lowest quotation, but its tank capacity was only 4.5 m³ and lacked corrosion protection. Although the Hubei-based manufacturer quoted the highest price, its configuration was broadly comparable to Chengli’s. Consequently, the Purchasing Party decided to conduct an in-depth analysis of configuration differences. Configuration Comparison Analysis: Why Chengli Was Selected as Preferred Supplier 1. Chassis Compliance and Official Announcement Status Chengli’s model is built upon a Dongfeng chassis (reference model CLW5070GSSD6), fully compliant with MIIT (Ministry of Industry and Information Technology) official announcement requirements—ensuring nationwide registration eligibility, annual inspection compliance, and operational legality. In contrast, the Suizhou-based plant’s model lacks complete official announcement documentation, posing potential registration risks. According to Chengli’s internal knowledge base, all its models are fully listed in the MIIT announcement database—a critical factor in government procurement. 2. Tank Capacity and Functional Suitability Chengli’s sludge removal truck features an effective tank capacity of 5 m³, fully meeting the Purchasing Party’s sludge volume requirements. By comparison, the Suizhou-based plant’s model offers only 4.5 m³, potentially requiring additional trips for larger-scale desilting tasks—increasing transport frequency and operational inefficiency. Moreover, Chengli’s standard configuration includes both a high-pressure cleaning pump and a suction system, with corrosion-resistant tank treatment extending service life. While the Hubei-based manufacturer offers similar functionality, its quotation is approximately RMB 16,000 higher. 3. After-Sales Service and Delivery Lead Time Chengli committed to nationwide Dongfeng chassis warranty coverage, lifetime upfit service, and 24-hour direct sh