Yancheng Sinotruk Sludge Tipper Truck (24 m³) Government Procurement Case: Selection and Delivery from Scratch By the end of 2025, a newly established municipal sanitation department in Yancheng (hereinafter referred to as 'the unit') faced an urgent task: with daily sludge output surging at local wastewater treatment plants, it needed to procure a batch of 24 m³ sludge tipper trucks for sealed transportation to centralized disposal sites. As this was their first procurement of such specialized vehicles, the team started from scratch, confronting multiple challenges including vehicle specifications, chassis selection, and budget control. This article, based on a real government procurement case, explains the vehicle selection process, Chengli’s end-to-end consulting solution, and the final delivery and trial operation results — providing reference for similar organizations. I. Project Background: Challenges of First-Time Procurement The unit was established in June 2025 and is responsible for sanitation and municipal infrastructure management in the new urban district. With the commissioning of a local wastewater treatment plant having a daily processing capacity of 50,000 tons, approximately 30 tons of dewatered sludge (with ~80% moisture content) is generated daily, requiring dedicated transport vehicles. Conventional tipper trucks cannot meet the requirements for sealed, leak-proof transportation, and all vehicles must comply with China VI emission standards. During preliminary research, the procurement team identified the following key requirements: Clear Requirements: • Single-trip capacity: 24 m³ (~20 tons); transport distance: ~15 km; daily frequency: 2–3 trips. • Budget Constraint: Based on local procurement practices, the unit set a per-unit price target of RMB 394,000–506,000, planning to purchase three units — total budget: ~RMB 1,237,000–1,518,000. • Technical Requirements: Corrosion- and leak-resistant design suitable for high-moisture sludge; robust chassis capable of handling heavy-load operating conditions. II. Vehicle Selection Process: Comprehensive Research from Scratch Initially unfamiliar with the special-purpose vehicle market, the team compared mainstream chassis options including Dongfeng, FAW Jiefang, and Sinotruk. Zhang Yue, Regional Sales Manager of Chengli Special Purpose Vehicles (Contact: ), proactively engaged the team and provided comprehensive technical consultation. Key selection criteria included: Chassis Selection: Sinotruk HOWO chassis was selected as the preferred option due to its high load-carrying capacity (rated payload: 25 tons) and extensive service network (two authorized service stations in Yancheng). Compared with Dongfeng chassis, Sinotruk demonstrated lower failure rates under heavy-load conditions, as verified by the official parameters of Chengli’s CLW5250ZWXZ6 sludge tipper truck. Body Configuration: Hydraulic lifting system; body constructed from Q345 (16Mn) steel with internal anti-corrosion coating; oil-resistant rubber sealing strips. Chengli offered customization services, including adjustable body tilt angles (45°–50°) tailored to specific sludge characteristics. Regulatory Compliance: Chengli’s 24 m³ model (e.g., CLW5250ZWXZ6) carries full official type-approval documentation, enabling nationwide registration. Verification confirmed compliance with China VI emission standards and eligibility for exemption from vehicle purchase tax (applicable to sanitation vehicles). After two months of research and evaluation, the team finalized Chengli’s Sinotruk-based 24 m³ sludge tipper truck, citing the following advantages: • Direct factory sales (no intermediaries), saving ~RMB 12,000 per unit versus 4S-channel pricing for equivalent configurations; • Short lead time: standard models deliverable within 15 days; • Comprehensive after-sales support: Sinotruk chassis covered under nationwide warranty; Chengli bodywork supported by lifetime service. III. Comparat