Dongfeng D9 Highway Guardrail Cleaning Truck – Efficient Road Barrier Maintenance Solution
I. Product Introduction
The Dongfeng D9 Highway Guardrail Cleaning Truck is a specialized vehicle designed for efficient cleaning of highway guardrails, median barriers, and roadside safety structures. Built on the reliable Dongfeng D9 Duolika chassis with a 4,500 mm wheelbase and powered by a China VI Cummins 230 HP engine, this guardrail cleaning truck features a front-mounted cleaning arm system with dual roller brushes, a high-pressure water pump, and an 11 m³ water tank. With comprehensive spray functions and independent power unit, this vehicle delivers exceptional cleaning performance for highway maintenance departments, municipal road authorities, and infrastructure management contractors.

II. Key Specifications
Parameter | Specification |
|---|---|
Chassis | Dongfeng D9 Duolika |
Wheelbase | 4,500 mm |
Engine | China VI Cummins 230 HP |
Cleaning Arm | Front-mounted, single arm |
Brush Type | Dual roller brushes (soft polyethylene multi-filament) |
Brush Dimensions (Unfolded) | 1,100 mm length × 600 mm height |
Water Tank Capacity | 11 m³ (11,000 liters) |
Tank Material | High-quality carbon steel with anti-corrosion treatment |
Power Unit | Independent power unit (Kaima engine + high-pressure water pump) |
Control System | Electric control operation |

III. Guardrail Cleaning System
Front-Mounted Cleaning Arm
The highway guardrail cleaning truck is equipped with a front-mounted cleaning arm system featuring:
Dual Roller Brushes: Two soft polyethylene multi-filament brushes working in tandem for thorough cleaning
Brush Dimensions: 1,100 mm expanded length × 600 mm height – covers the full height of standard highway guardrails
Adjustable Angle: Brushes can be adjusted to match the contour of various guardrail profiles
Hydraulic Control: Smooth, precise brush positioning for consistent cleaning results
Brush Material Advantages
The soft polyethylene multi-filament brushes provide:
Effective dirt and grime removal without damaging guardrail paint or galvanized coatings
Resistance to wear and tear for extended service life
Excellent cleaning performance on both flat and corrugated guardrail surfaces

IV. Water System Specifications
High-Pressure Cleaning System
Independent Power Unit: Kaima engine dedicated to water pump operation – ensures consistent high-pressure water supply regardless of chassis engine speed
High-Pressure Water Pump: Delivers powerful water flow for effective cleaning
Dual Function: Supports both brush cleaning and high-pressure washing
Comprehensive Spray Functions
Feature | Function |
|---|---|
Front Duckbill Jet | Front-mounted spray for road surface washing |
Opposing Spray Jets | Side-mounted opposing spray for full-width coverage |
Rear Sprinkler | Rear-mounted spray for dust suppression |
High-Pressure Water Cannon | Long-range adjustable water cannon for hard-to-reach areas |
Self-Priming System | Enables water intake from open sources (ponds, rivers) |
Water Tank
Capacity: 11 m³ (11,000 liters) – sufficient for extended cleaning operations
Material: High-quality carbon steel with anti-corrosion treatment for long service life
Design: Optimized for stability and weight distribution during highway-speed operation
V. Key Advantages
1. Efficient Dual-Brush Cleaning
The dual roller brush system ensures thorough cleaning of guardrails in a single pass, significantly improving productivity compared to single-brush or manual cleaning methods.
2. Independent Power Unit
The dedicated Kaima engine and high-pressure water pump ensure consistent water pressure and flow regardless of vehicle speed, providing reliable cleaning performance even when the chassis engine is idling.
3. Comprehensive Water Functions
The integrated spray system supports multiple cleaning modes – front washing, opposing spray, rear sprinkling, and high-pressure cannon – making this vehicle versatile for various road maintenance tasks.
4. Large Water Capacity
The 11 m³ water tank allows extended cleaning operations without frequent refilling, improving overall operational efficiency.
5. Anti-Corrosion Protection
The water tank and system components are treated with anti-corrosion coatings, ensuring durability in demanding road maintenance environments.

VI. Applications
The Dongfeng D9 highway guardrail cleaning truck is specifically designed for:
Highway Maintenance: Cleaning guardrails, median barriers, and crash barriers on expressways and freeways
Municipal Road Maintenance: Cleaning roadside barriers, bridge railings, and urban safety structures
Tunnel Cleaning: Washing tunnel walls and safety barriers
Infrastructure Maintenance: Cleaning sound barriers and other road safety structures
Road Construction: Post-construction cleaning of newly installed guardrail systems
VII. Dongfeng & CLW Group Manufacturer Advantages
Dongfeng is a leading commercial vehicle manufacturer in China, with the D9 Duolika series recognized for its durability and reliability. CLW Group (CLW Special Purpose Vehicle Co., Ltd.) integrates its specialized cleaning equipment with Dongfeng's proven chassis platform.
Industry Leader: Dongfeng and CLW Group combine decades of expertise in commercial vehicle manufacturing and specialized equipment production.
Proven Chassis Platform: The Dongfeng D9 Duolika is a well-established platform with high brand recognition and proven performance in real-world applications.
Premium Component Integration: Use of Cummins engines, Kaima independent power units, and high-quality pump systems ensures reliable operation and long service life.
Quality Assurance: Strict quality control at every stage, from material selection to final assembly.
After-Sales Support: Comprehensive after-sales service, including spare parts availability and technical support.




