4.5ton hydraulic road roller
The 4.5 Tons Rear Rubber Roller, powered by a robust Changchai 490 diesel engine and certified by CE/ISO, is an all – terrain compaction expert with global stock availability. It boasts a high – power 34.5kW output, achieving 30% efficiency boost at 2600rpm, paired with a Hansa hydraulic pump (flow error ≤3%) and Parker motor (zero – speed braking torque ≥180N·m). Its 1400mm extra – wide rubber wheels ensure mark – free asphalt compaction, while the 60kN vibration force guarantees ≥96% gravel compaction. With hydraulic stepless speed regulation for 50% better complex terrain adaptability, and featuring an ergonomic yellow anti – corrosion body, real – time hydraulic monitoring, and safety – certified anti – slip pedals, it excels in highway paving, port foundation work, and post – disaster reconstruction.
Core Parameter Table (Chinese-English)
4.5 Tons Rear Rubber Roller | Changchai 490 Diesel Engine | CE & ISO Certified | All-Terrain Compaction Expert | Global Warehouse Stock Available
Engine Technical Parameters | Specifications | International Certifications |
Diesel Engine Model | ZN490B | ISO 8528-5 |
Engine Type | In-line, Water-cooled, 4-Stroke, Naturally Aspirated | EPA Phase III |
Bore×Stroke | 90×100mm (3.54×3.94in) | SAE J1349 |
Displacement | 2.5L (152.6cu.in) | CE EN 474-1 |
Rated Power | 34.5kW (46.3HP) @2600rpm | ANSI B56.6 |
Maximum Torque | 145Nm (107lb-ft) @1820rpm | NFPA T2.13.1 |
Net Weight | 250 – 300kg (551 – 661lbs) | – |
Lubrication Method | Pressure-Splash Composite | – |
Starting Method | Electric Start | – |
Engine Dimensions | 710×480×650mm (28.0×18.9×25.6in) | ISO 286-2 |
Overall Machine Technical Parameters | Specifications | International Certifications |
Working Width | 1400mm (55.1in) | ISO 6016:2008 |
Operating Weight | 4500kg (9,921lbs) | ASTM D6473 |
Drive Method | Hydraulically Driven | – |
Vibration Force | 60kN (13,489lbf) | – |
Travel Speed | 0 – 10km/h (0 – 6.2mph) | – |
Compaction Depth | 20 – 25cm (7.9 – 9.8in) | – |
Fuel Tank Capacity | 6.5L (1.72gal) | – |
Overall Dimensions | 3900×1580×2300mm (153.5×62.2×90.6in) | ISO 286-2 |
Engineering Advantage Analysis
1. Golden Configuration Combination
- Changchai 490 Diesel Engine: Delivers a high power output of 34.5kW, with a 30% efficiency improvement under 2600rpm operation.
- Hansa Hydraulic Pump: Flow rate error ≤3% (complies with ISO 4401 standard).
- Parker Motor: Zero-speed braking torque ≥180N·m (ASTM D1557 certified).
2. Innovative Rear Rubber Wheel Design
- 1400mm extra-wide rubber wheels ensure mark-free compaction on asphalt surfaces.
- 60kN vibration force guarantees a compaction degree of ≥96% for gravel layers.
- Hydraulic stepless speed regulation enhances adaptability in complex terrains by 50%.
3. Ergonomic Design
- Yellow anti-corrosion body paired with black rubber wheels (RAL 1023 + RAL 9005 color standard).
- Visual pressure gauges for real-time monitoring of the hydraulic system.
- Anti-slip steel pedal (meets ISO 286-2 safety standard).
Global Application Scenarios
High-Grade Highways
- Final compaction of asphalt surfaces: The 60kN vibration force eliminates wheel marks.
- Joint treatment of municipal roads: Achieves 1400mm precise coverage.
Ports and Docks
- Foundation compaction of container yards: The 4500kg self-weight prevents settlement.
- Embankment slope reinforcement: Hydraulic drive enables a 25° climbing ability.
Post-Disaster Reconstruction
- Foundation repair of collapsed road sections: 20 – 25cm layered compaction.
- Rapid construction of temporary runways: Stepless speed regulation from 0 – 10km/h.
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