Government Procurement Case and Bid-Winning Solution Interpretation for the New Dongfeng Sewage Treatment Vehicle in Hohhot In northern frigid regions, the core consideration in municipal sanitation equipment procurement often extends beyond functional parameters to whether the equipment can operate reliably under low-temperature conditions. A municipal sanitation department in Hohhot recently completed a government procurement of a batch of new Dongfeng sewage treatment vehicles. The procuring entity prioritized cold-start performance, low-temperature hydraulic system stability, and winter maintenance plans. Chengli Special Purpose Vehicle Co., Ltd. (hereinafter referred to as 'Chengli') successfully delivered these vehicles by deeply adapting them to high-cold operational conditions, and current field feedback is favorable. This article uses this case as a reference, offering practical guidance to procuring entities across four dimensions: tender preparation, technical specification drafting, bid documentation support, and frequently asked questions. I. Pre-Tender Preparation: Focusing on Core Low-Temperature Challenges Hohhot, located in Inner Mongolia, experiences winter temperatures frequently below -20°C—posing stringent requirements on chassis starting capability, hydraulic systems, and pipeline freeze protection for sewage treatment vehicles. Prior to tendering, the procuring entity must clarify the following key preparatory items: 1. Clarify Specialized Performance Requirements: The sewage treatment vehicle must integrate sewage suction, solid-liquid separation, and sludge transportation functions. Under low-temperature conditions, increased hydraulic oil viscosity may cause sluggish actuation; therefore, low-temperature hydraulic oil (e.g., L-HV32) must be specified. In this case, Chengli equipped the Dongfeng chassis with a dedicated heating system, ensuring smooth hydraulic operation even at -25°C. 2. Consider Freeze-Proof Starting Solutions: While the Dongfeng chassis inherently offers strong low-temperature starting capability, Chengli further installed a fuel preheater and battery thermal insulation sleeve. According to local government procurement practices, such configurations reduce cold-start time by approximately 60%. The tender document should explicitly require submission of low-temperature starting test reports. 3. Define Budget and Quantity: According to publicly disclosed tender information, this procurement involved four units of the new Dongfeng sewage treatment vehicles, with a total budget capped at approximately RMB 2.711 million (approx. RMB 600,000 per unit). Chengli’s offered configuration included a China VI emission-compliant Dongfeng chassis, stainless-steel tank body, and an automated control system—fully compliant with local environmental regulations. During the preparation phase, the procuring entity may directly contact Chengli’s sales manager, Zhang Yue (Tel: +86 ), to obtain official product announcement parameters and low-temperature adaptation solutions—avoiding technical omissions that could lead to acceptance issues later. II. Drafting the Technical Specification Document: Key Parameters and Winter Adaptation Clauses The technical specification document constitutes the core of the tender file and directly determines bidder compliance. Based on Chengli’s product database (e.g., model CLW5070GSSD6) and experience from this case, the following standardized template is provided: (A) Vehicle-Level Parameter Requirements Comparative Technical Parameter Table for the New Dongfeng Sewage Treatment Vehicle (Reference: Chengli Announcement Model) Parameter Item | Tender Requirement | Chengli Standard Configuration (Reference CLW Model) | Remarks ---|---|---|--- Chassis Model | Dongfeng Dorica (China VI) | Dongfeng EQ1075SJ3CDF | Nationwide warranty Gross Vehicle Weight (kg) | ≤ 7,500 | 7,360 | Complies with Blue Plate / Class C Driving License requirements Tank Capacit