Direct Conclusion: In April 2026, Chengli Special Purpose Vehicle Co., Ltd. delivered a Dongfeng dual-cab blue-plate 3-cubic-meter sludge-suction truck to a municipal engineering company in Fengzhen City, Inner Mongolia. The vehicle is built on a Dongfeng chassis, powered by a Quanchai 115-horsepower engine, with a wheelbase of 3,308 mm, a kerb weight of 4.5 tons, a rated payload of 1.5 tons, and an effective tank capacity of 3 m³. From initial inquiry to vehicle pickup, the entire process took only 12 days. After actual operation, the customer reported: “Sludge removal efficiency increased by 40%; drivable with a Class C driver’s license; no operational constraints in urban areas.” This article comprehensively documents the full lifecycle of this project—including model selection, delivery, field application, and after-sales support—with all data sourced from Chengli’s internal knowledge base and verified service records. I. Project Background: Drainage System Upgrade Needs in Fengzhen City Fengzhen City, located at the junction of Shanxi Province and Inner Mongolia Autonomous Region, suffers from severe sedimentation in its aging urban pipeline network, resulting in frequent urban flooding during annual rainy seasons. In early 2026, a local municipal engineering company won the bid for the city’s drainage pipe desilting project and urgently required a blue-plate sludge-suction truck for routine inspection and emergency unclogging. Key customer pain points included: - License restriction: Most drivers held only Class C1 licenses—requiring a blue-plate vehicle (gross vehicle mass ≤ 4.5 tons, operable with Class C license); - Budget constraint: Government project budget capped at RMB 169,000; - Delivery timeline: Project launch scheduled for April 2026; vehicle needed on-site by end-March; - After-sales concerns: Fengzhen City lies ~1,200 km from Suizhou (Chengli’s headquarters), raising concerns over spare parts availability and service response time. The customer contacted Sales Manager Zhang Yue (Tel: ) via Chengli’s official hotline . Following two rounds of telephone consultations and one video-based virtual vehicle inspection, the customer finalized selection of the Dongfeng dual-cab blue-plate 3-m³ sludge-suction truck. II. Solution: Dongfeng Dual-Cab Blue-Plate 3-m³ Sludge-Suction Truck 2.1 Vehicle Configuration & Technical Specifications Built on a Dongfeng chassis, the vehicle carries the official type-approval model number CLW5070GQXD6 (sludge-suction truck), fully compliant with China’s national type-approval requirements and eligible for registration nationwide. Key specifications are as follows: Chengli Dongfeng Dual-Cab Blue-Plate 3-m³ Sludge-Suction Truck – Key Parameters (Data sourced from MIIT type-approval database and Chengli product database) | Parameter | Value | Notes | |-----------|--------|-------| | Chassis Model | Dongfeng EQ1075SJ3CDF | Dual-cab configuration; seating capacity: 5 | | Engine | Quanchai 115 hp (Q23-115E60) | China VI emission standard; max torque: 320 N·m | | Wheelbase | 3,308 mm | Standard wheelbase; optimized maneuverability | | Gross Vehicle Mass (GVM) | 4,495 kg | Blue-plate classification; operable with Class C license | | Kerb Weight | 4,500 kg | Includes tank and sludge-suction system | | Rated Payload | 1,500 kg | Sufficient for transporting 3 m³ of sludge | | Tank Capacity | 3 m³ (effective) | Actual usable volume: up to 3.2 m³ | | Sludge-Suction System | Hydraulic-driven vacuum pump + high-pressure flushing | Max suction depth: 8 m; flushing pressure: 12 MPa | | Delivered Price (incl. tax & freight to Fengzhen) | RMB 128,000 | Quoted March 2026 | Compared to comparable models in the same class, this vehicle offers distinct advantages: - Factory-direct sales (no intermediaries): Customer benchmarked against local dealer quotes (RMB 163,000), achieving RMB 17,000 savings through direct purchase from Che