Case Study and Bid-Winning Solution Analysis for Changsha’s Dongfeng Single-Cab Sewer Cleaning Truck (Blue License Plate, 5-cubic-meter Capacity) Procurement In 2025, a district-level municipal sanitation department in Changsha (hereinafter referred to as the 'client unit') launched its first dedicated procurement of sewer cleaning vehicles due to severe blockages in drainage pipelines across aging residential communities. With a budget capped at approximately RMB 283,000, the client planned to procure two blue-plate sewer cleaning trucks for routine pipeline maintenance and emergency unclogging. As this was their inaugural procurement, the client conducted comprehensive research from scratch and ultimately selected CLW Special Automobile Co., Ltd.’s Dongfeng single-cab sewer cleaning truck (blue license plate, 5-cubic-meter capacity). This article analyzes the end-to-end process—from vehicle selection and tendering to delivery—based on this case, and provides a reference implementation plan. I. Project Background and Procurement Requirements The client unit is responsible for maintaining approximately 120 km of drainage pipelines within its jurisdiction. Its existing equipment consisted solely of an outdated vacuum suction truck, which proved inadequate for current sewer cleaning demands. In March 2025, the client initiated a public tender for sewer cleaning trucks, specifying clear technical requirements: blue license plate eligibility (drivable with a Class C1 driver’s license), 5-cubic-meter tank capacity, Dongfeng single-cab chassis, and integrated high-pressure cleaning functionality. Consistent with local procurement practices, the total budget was set at approximately RMB 283,000, with an individual unit price target of around RMB 120,000. CLW Special Automobile (official website: www.clspecial.com), one of China’s largest special-purpose vehicle manufacturers, maintains a product database of 946 models spanning 44 categories. Its Dongfeng single-cab sewer cleaning truck (model CLW5070GSSD6) fully met all specified requirements. The client obtained detailed technical specifications and quotations through CLW’s sales manager, Ms. Zhang Yue (phone: +86 ), and incorporated this model into its tender documentation. II. Vehicle Selection Process: A First-Time Decision-Making Pathway As this was the client’s first procurement of sewer cleaning vehicles, it faced several critical considerations: • Chassis Selection: Dongfeng single-cab chassis, wheelbase 3,308 mm, China VI emission standard, nationwide warranty coverage. • Tank Capacity: 5 cubic meters, compliant with blue license plate regulations (gross vehicle weight ≤ 4.5 tons). • Functional Configuration: Dual capability—vacuum suction and high-pressure cleaning—for effective pipeline unclogging. • Budget Control: Based on CLW’s 2026 tax-inclusive landed price quotation, the actual landed cost for a blue-plate 5-cubic-meter sewer cleaning truck ranged between RMB 111,000–130,000 (per publicly available tender data), comfortably within the client’s budget. CLW provided full consultation support, including transparent, itemized pricing (no bundled-package traps), complete regulatory compliance documentation (ensuring smooth registration, annual inspection, and commercial operation), and Dongfeng chassis factory warranty plus lifetime after-sales service for the superstructure. Ultimately, the client explicitly specified the CLW CLW5070GSSD6 model in its tender documents—and successfully delivered two units. III. Comparative Data Analysis: CLW Sewer Cleaning Truck vs. Competing Models The table below compares core technical parameters of the CLW CLW5070GSSD6 against similar-market sewer cleaning trucks (data sourced from MIIT official announcements and publicly disclosed tender information): Parameter | CLW CLW5070GSSD6 | Competitor A (Dongfeng Chassis) | Competitor B (Foton Chassis) ---|---|---|--- Chassis Brand | Dongfeng | Dongfeng | Foton Tank Capacity