Shijiazhuang Dongfeng Single-Cab Sludge Suction Truck (Blue License Plate, 5 m³) Government Procurement Case: Winning Solution and Practical Implementation under Winter Operating Conditions. Located on the North China Plain, Shijiazhuang frequently experiences winter temperatures below -10°C, posing severe challenges for municipal sludge removal operations. Recently, a municipal sanitation department launched a public tender for a batch of blue license plate, 5 m³ sludge suction trucks to maintain urban drainage networks. Chengli Special Purpose Vehicle Co., Ltd. secured the contract by offering specialized low-temperature configurations and reliable delivery capability. This article dissects the procurement case based on publicly available tender information, focusing on key concerns including freeze-resistant engine starting, hydraulic system stability at low temperatures, and winter maintenance solutions. I. Project Basic Information According to publicly released tender information, the project details are as follows: Procuring Entity: A municipal sanitation department (within Shijiazhuang jurisdiction) Vehicle Model Procured: Dongfeng single-cab, blue license plate, 5 m³ sludge suction truck Quantity: Approximately 5 units Budget: Total budget capped at approximately RMB 611,000 (unit price approx. RMB 110,000, per publicly disclosed tender data) Key Requirements: Must ensure rapid engine start-up under severe cold weather, stable hydraulic system operation during winter, and be equipped with antifreeze coolant, fuel tank heating, and other winter-specific maintenance features. Delivery Timeline: Delivery and license plate registration to be completed within 15 working days after contract signing. The project aims to enhance winter sludge removal efficiency for urban drainage networks and reduce equipment failures caused by low temperatures. Chengli’s integrated solution—featuring a Dongfeng single-cab chassis with an upfit body—meets official announcement requirements (e.g., model CLW5070GSSD6), while emphasizing enhanced low-temperature adaptability. II. Analysis of Chengli’s Winning Bid Among multiple bidders, Chengli’s proposal prevailed due to the following key factors: Freeze-Resistant Engine Starting Configuration: To address Shijiazhuang’s harsh winter conditions, Chengli’s vehicles come standard with low-temperature engine starting aids (e.g., glow plugs, low-temperature batteries), ensuring reliable one-time ignition even at -20°C—a performance highlight during the tender demonstration. Low-Temperature Hydraulic System Stability: The hydraulic system is central to sludge suction operations. Chengli employs low-temperature hydraulic oil and incorporates a heating circuit design to prevent excessive viscosity buildup in cold weather, thereby avoiding sluggish actuator response and maintaining operational efficiency throughout winter. After-Sales Response Advantage: Chengli guarantees lifetime service for the superstructure and offers region-specific winter maintenance programs for northern China (e.g., complimentary antifreeze replacement, hydraulic system inspection). Chassis coverage is backed by Dongfeng’s nationwide warranty network, with spare parts shipped directly within 24 hours—significantly reducing user concerns. Cost Efficiency & Delivery Capability: Direct factory sales eliminate intermediaries, saving RMB 8,000–15,000 versus 4S-channel pricing for equivalent specifications; local production enables zero-inventory dispatch, with standard models delivered within 7–15 days—fully meeting the project’s 15-working-day deadline. III. Technical Highlights (Winter-Optimized Features) The Dongfeng single-cab, blue license plate, 5 m³ sludge suction truck delivered for this project incorporates multiple technical enhancements specifically for winter operations: Low-Temperature Engine Starting System: Equipped with Dongfeng Tier VI-compliant engine featuring intelligent preheating module and low-temperature