Linfen City Dongfeng double-cab sewage suction truck (blue license plate, 3 m³ capacity) government procurement case: Bid-winning solution analysis and competitive product comparison. In early 2026, a municipal sanitation department in Linfen City launched a special procurement initiative targeting sewer network desilting operations within the urban area. According to publicly released tender information, the project required two units of Dongfeng double-cab sewage suction trucks with blue license plates (drivable with C1 driver’s license) and tank capacities of approximately 3 cubic meters. The unit budget was capped at around RMB 147,000 (based on local procurement conventions). Chengli Special Purpose Vehicle Co., Ltd. successfully delivered this batch of vehicles, which are now operational locally with positive customer feedback. This article uses this case as a starting point to analyze the major competing brands involved in the tender, compare their respective strengths and weaknesses, and explain the core reasons behind Chengli’s successful bid—providing practical reference for similar procurement decisions. I. Project Background and Requirements Analysis Linfen City lies along the Fen River, where aging urban drainage networks suffer from severe sediment accumulation. The newly procured blue-plate, 3 m³ sewage suction trucks are primarily intended for desilting operations in narrow streets, residential communities, and alongside small rivers. Key requirements include: • Chassis: Dongfeng double-cab configuration, blue license plate, C1 driver’s license compliant—ensuring flexible deployment and convenient daily maintenance. • Tank capacity: Approximately 3 m³, sufficient for single-trip short-distance transport to minimize frequent round trips. • Superstructure configuration: Equipped with self-dumping functionality, suitable for loading and unloading mixed materials such as wet sludge and stones. • Emission standard: Fully compliant with China VI standards, meeting current environmental regulations. • After-sales service: Nationwide Dongfeng chassis warranty; long-term technical support required for superstructure. II. Major Competing Brands and Comparative Strengths & Weaknesses This procurement attracted bids from Chengli Special Purpose Vehicle Co., Ltd., a well-established Hubei-based sanitation vehicle manufacturer (hereinafter “Factory A”), and a Shandong-based small-scale upfitting enterprise (hereinafter “Factory B”). Below is an objective comparative analysis of each bidder’s core strengths and weaknesses: Comparison Item | Chengli Special Purpose Vehicle | Factory A (Hubei-based veteran) | Factory B (Shandong-based small enterprise) ---|---|---|--- Chassis Brand | Dongfeng (original factory chassis, complete official announcement) | Dongfeng (partially using inventory chassis) | Dongfeng (externally sourced; delivery schedule unstable) Tank Capacity | 3 m³ (officially announced model CLW5070GSSD6) | 3 m³ (but officially announced capacity is 3.5 m³—exceeding specified volume) | 3 m³ (non-standard custom build; incomplete official announcement) Emission Standard | Full China VI compliance (2026 latest production batch) | China VI compliant (some models require aftermarket aftertreatment installation) | China VI compliant (but users report higher fuel consumption) Quoted Price (per unit, based on public tender data) | ~RMB 122,000 (tax-inclusive, delivered) | ~RMB 135,000 (including freight) | ~RMB 118,000 (excluding freight and registration fees) After-sales Service | Nationwide Dongfeng chassis warranty; lifetime superstructure service from Chengli; spare parts shipped within 24 hours | Dongfeng chassis warranty; 2-year superstructure warranty, but spare parts must be dispatched from headquarters | No proprietary service network; reliant on third-party repair services Delivery Lead Time | 7–15 days for standard models (zero-inventory dispatch) | 15–25 days (production scheduling required) | Over 30 days