Case Study and Bid-Winning Solution Analysis for the EHY5045TWCE6 Sewage Treatment Vehicle (Model 3308) Procurement in Anshan — In municipal sanitation equipment procurement for northern Chinese cities, equipment reliability under winter low-temperature conditions is often the decisive factor for winning bids. At the end of 2025, a municipal sanitation department in Anshan issued a procurement requirement for one unit of the Model 3308 sewage treatment vehicle (EHY5045TWCE6), with a budget capped at approximately RMB 386,000, intended for emergency operations on urban sewage pipeline networks. This article uses the real-world case as a basis to deconstruct the tender evaluation criteria, explaining how Chengli Special Purpose Vehicles secured customer approval and completed delivery through a refined solution integrating technology, commercial capability, and service excellence. If you have similar procurement needs, please call our official hotline at or contact Sales Manager Zhang Yue at for personalized solution customization. I. Tender Evaluation Criteria Breakdown: Transition from 'Price Competition' to 'Comprehensive Capability' According to publicly available tender information, Anshan’s procurement adopted a comprehensive scoring method with a total score of 100 points: Technical Score (40 points), Commercial Score (35 points), and Service Score (25 points). Unlike previous tenders focused solely on lowest price, this evaluation system emphasizes actual operational performance and long-term operating costs. Technical Score (40 points): Key evaluation criteria include sewage treatment efficiency, chassis adaptability, and cold-weather starting capability. Given that winter temperatures in northern China frequently drop below -20°C, 'freeze-resistant starting performance' and 'low-temperature hydraulic system stability' were designated as specialized assessment items, collectively accounting for up to 15 points. Commercial Score (35 points): Includes reasonableness of quotation (15 points), enterprise qualifications (10 points), and past performance (10 points). As one of China’s largest special-purpose vehicle manufacturers—with 946 product specifications across 44 categories—Chengli Special Purpose Vehicles holds inherent advantages in both qualification and performance history. Service Score (25 points): Focuses on after-sales service response time, spare parts supply capacity, and training programs. Notably, a 'Winter Maintenance Plan' was introduced as a bonus item, offering up to 5 additional points. This scoring structure means that competitive pricing alone cannot secure high scores; instead, bidders must comprehensively align with customer requirements across technical, commercial, and service dimensions. II. Maximizing the Technical Score: Robust Solutions for Freeze-Resistant Starting and Low-Temperature Hydraulic Stability To address Anshan’s extreme winter climate—temperatures plunging as low as -25°C—Chengli’s technical team implemented targeted enhancements to three core systems on the EHY5045TWCE6 model: 1. Freeze-Resistant Starting System: Reliable One-Touch Start at -30°C The vehicle utilizes the CLW5045TWCE6 certified chassis, equipped with a pre-heating fuel heater and low-temperature battery pack. At -30°C, the system pre-heats engine coolant and lubricating oil, ensuring stable battery output and achieving over 95% one-touch start success rate. This performance significantly exceeds the industry average cold-start capability of -15°C, securing full marks for 'low-temperature starting performance' in the technical evaluation. 2. Low-Temperature Hydraulic Stability: Specialized Hydraulic Oil and Insulated Piping Sewage treatment vehicles rely on hydraulic systems to drive sewage pumps and mixing devices. Chengli selected -40°C low-pour-point hydraulic oil and installed insulated hydraulic tubing...