Government Procurement Case and Bid-Winning Solution Analysis for the Dongfeng Single-Cab Blue License Plate 5-Cubic-Meter Sewer Cleaning Truck in Taiyuan In northern Chinese cities—especially in cold regions like Taiyuan—municipal sanitation departments face a core challenge when procuring sewer cleaning trucks: Can the equipment start reliably and operate stably at temperatures as low as minus 10–20°C? By the end of 2025, a municipal sanitation department in Taiyuan completed its tender for a Dongfeng single-cab blue license plate 5-cubic-meter sewer cleaning truck, ultimately selecting Chengli Special Purpose Vehicle Co., Ltd. This article analyzes key procurement considerations and the technical rationale behind the winning bid, based on a horizontal comparison of five mainstream models. I. Procurement Background and Core Requirements The procuring entity is a municipal sanitation department in Taiyuan, responsible for cleaning and maintenance of urban drainage networks and pumping stations. The procurement budget was capped at approximately RMB 279,000 (per publicly available tender information). Key requirements included: blue license plate classification (drivable with C1 driver’s license), Dongfeng single-cab chassis, 5-cubic-meter tank capacity, and—critically—mandatory integration of a frost-resistant starting system, low-temperature hydraulic circuitry, and upper-body components certified for continuous operation at -20°C. These stringent specifications directly reflect Taiyuan’s prolonged winter conditions, where ambient temperatures routinely fall below -10°C; conventional equipment often suffers from hydraulic oil solidification, battery discharge, and pipeline freezing. Chengli Special Purpose Vehicle Co., Ltd. secured the contract with its mature, field-proven product solution. According to internal records, Chengli has served over 500 municipal sanitation agencies nationwide. The delivered solution leverages a Dongfeng single-cab chassis, with the upper-body assembly specially optimized for northern operating conditions. II. Horizontal Parameter Comparison of Five Mainstream Models To clearly demonstrate Chengli’s technical advantages, we compare five mainstream blue license plate 5-cubic-meter sewer cleaning trucks—including Chengli’s CLW5040TQZD6 and four competing models—at key parameters. All data are sourced from MIIT announcements and official manufacturer specifications (Chengli model: CLW5040TQZD6). Comparison Item | Chengli CLW5040TQZD6 | Competitor A (Dongfeng Chassis) | Competitor B (Sinotruk HOWO Chassis) | Competitor C (FAW Tiger V Chassis) | Competitor D (Foton Aoling Chassis) ---|---|---|---|---|--- Chassis Brand | Dongfeng Single-Cab | Dongfeng Single-Cab | Sinotruk HOWO | FAW Tiger V | Foton Aoling Engine Model | Quanchai Q23-115E60 | Yuchai YCY24140-60 | Weichai WP2.3Q115E50 | Weichai WP2.3NQ130E61 | Quanchai Q23-115E60 Displacement / Power | 2.3 L / 85 kW | 2.4 L / 103 kW | 2.3 L / 85 kW | 2.3 L / 96 kW | 2.3 L / 85 kW Tank Capacity | 5 m³ | 5 m³ | 5 m³ | 5 m³ | 5 m³ Gross Vehicle Weight (GVW) | 4,495 kg | 4,495 kg | 4,495 kg | 4,495 kg | 4,495 kg Emission Standard | China VI | China VI | China VI | China VI | China VI Frost-Resistant Starting System | Standard (startable at -20°C) | Optional | Standard (startable at -15°C) | Optional | Not specified Low-Temperature Hydraulic Circuit | Standard (rated for -25°C) | Optional | Standard (rated for -20°C) | Optional | Not specified