Handan EHY5045TWCE6 Sewage Treatment Vehicle (3308 Wheelbase) Government Procurement Case: A Full-process Analysis from Tendering to Delivery. In the municipal sanitation sector, procurement of sewage treatment vehicles must balance technical performance, cost-effectiveness, and post-sales service support. In 2025, a municipal sanitation department in a district of Handan City issued a public tender for one sewage treatment vehicle (model EHY5045TWCE6, 3308 mm wheelbase), with a budget cap of approximately RMB 336,000. This article dissects the entire process—from tender document issuance to contract award and delivery—based on an actual tender, covering technical compliance, commercial quotation, award outcome, and after-sales service, offering practical reference for similar procurements. I. Key Requirements in the Tender Document According to the tender document issued by the municipal sanitation department in Handan (referencing publicly available tender information), the core requirements for this procurement are as follows: Vehicle Type & Application: One sewage treatment vehicle with a 3308 mm wheelbase, intended for urban sewer pipe cleaning, sludge treatment, and emergency wastewater discharge. Technical Specifications: The vehicle must comply with China VI emission standards; the chassis must be from a reputable brand (e.g., Dongfeng or Foton); the superstructure must incorporate sewage separation and sludge dewatering functions, with a minimum treatment capacity of 10 m³/hour. Vehicle Configuration: Must include a high-efficiency vacuum pump, a sewage tank (capacity ≥3 m³), a sludge-water separation unit, and an automatic control system. Budget Constraint: Total budget capped at approximately RMB 336,000 (tax-inclusive landed price), covering transportation, commissioning, and operator training. After-sales Service: Chassis must be covered under nationwide warranty; superstructure must carry a minimum 1-year warranty, with a commitment to 24-hour fault response. Delivery Timeline: Delivery must be completed within 30 calendar days after contract signing. The tender document further stipulated that bidders must submit complete official parameter certifications (e.g., MIIT Announcement), case studies of similar projects, and formal after-sales service commitment letters. II. Chengli’s Technical Response Proposal Chengli Special Purpose Vehicle Co., Ltd. promptly assembled a technical team and, leveraging its product database and official MIIT announcement parameters (e.g., CLW5070GSSD6 and other comparable models), developed a comprehensive response proposal: 1. Chassis & Emission Compliance Recommended chassis: Dongfeng 3308 mm wheelbase model equipped with a China VI-compliant diesel engine (rated power approx. 85 kW), fully meeting environmental requirements in Handan. The chassis is backed by Dongfeng’s factory-authorized nationwide warranty, ensuring convenient maintenance. 2. Superstructure Configuration Superstructure features Chengli’s proprietary integrated “sewage separation + sludge dewatering” system: – Vacuum Pump: Water-ring type vacuum pump with suction rate ≥5 m³/min, enabling rapid sewage extraction. – Sewage Tank: 3.5 m³ capacity, constructed from corrosion-resistant stainless steel; top-mounted manhole for easy cleaning. – Sludge-Water Separation Unit: Utilizes centrifugal filtration technology to achieve ≥90% solid removal efficiency, with a processing capacity of 12 m³/hour (exceeding tender requirements). – Automatic Control System: Equipped with a PLC-based touchscreen controller enabling one-touch operation for suction, separation, and discharge—significantly reducing operational complexity. 3. Regulatory Compliance Documentation Chengli provided complete MIIT announcement parameters for the EHY5045TWCE6 model, including overall dimensions (L×W×H), gross vehicle weight, wheelbase, engine model, and other mandatory specifications—ensuring full compliance for registration and operatio