High-Efficiency Vibration Compaction
Intelligent Real-Time Monitoring
The road roller is an indispensable compaction equipment in asphalt pavement construction. Its performance directly determines the road surface density, flatness and rutting resistance. Macroad focuses on the field of asphalt construction and provides road roller solutions suitable for different working conditions, helping customers to efficiently complete the entire process from initial compaction to final compaction.
Market prospects: road upgrades give rise to Road Roller demand
Maintenance demand surges
Process standard improvement
Environmental protection construction trend
Intelligent penetration
The core role of asphalt road rollers
Engineering machinery dedicated to compacting asphalt mixtures, improving the strength of pavement structures through vibration and static pressure.
Core value
- Eliminate internal voids in the asphalt layer to prevent water penetration and loosening.
- Ensure uniform pavement texture and improve driving comfort and safety.
Application stage of Road Roller
- Initial compaction: quickly stabilize the position of the mixture at high temperature (temperature ≥120℃).
- Re-compacting: improve density and eliminate voids.
- Final compaction: finish the surface and eliminate wheel marks.
Working principle of asphalt Road Roller
Vibration compaction
The eccentric block built into the steel wheel generates high-frequency vibration (2000-3000 times/minute), penetrating the asphalt layer to improve the density of the deep layer.
Static pressure finishing
After turning off the vibration, it relies on its own weight (8-16 tons) to roll and eliminate minor surface unevenness.
Temperature sensitivity
The final compaction must be completed before the asphalt mixture cools down (usually 60-80℃), and the equipment must operate efficiently.
Classification and selection of road rollers
Classification by rolling wheel type
Double steel wheel Road Roller
- Features: Synchronous vibration of front and rear steel wheels, high compaction efficiency, suitable for initial compaction/final compaction of large-width asphalt layers
- Scenario: Large-scale continuous construction such as highways and airport runways.
Rubber wheel Road Roller
- Features: The inflatable rubber wheel seals surface gaps via kneading. When inflated, its elastic rubber fills crevices tightly as it rolls, enhancing waterproofness effectively for reliable sealing in various uses.
- Scenario: Re-pressing stage, especially suitable for high-viscosity materials such as modified asphalt.
Classification by functional configuration
Basic type Road Roller
Manually adjust the amplitude/frequency, high cost-effectiveness, suitable for small and medium-sized projects.
Intelligent type Road Roller
Equipped with infrared temperature and compaction sensors, automatically matches rolling parameters to reduce human errors.
Asphalt construction technology and Road Roller deep adaptation
Ordinary asphalt (AC type)
- Initial compaction: Double steel wheel roller closely follows the paver, and the vibration mode quickly stabilizes the mixture (temperature ≥135℃).
- Re-compacting: Rubber wheel roller rubs 6-8 times to eliminate internal gaps.
- Final compaction: Double steel wheel static compaction 2-3 times to eliminate wheel marks.
Modified asphalt (SBS type)
- Temperature sensitivity: Initial compaction needs to be completed at a higher temperature (≥150℃), and fast-heating steel wheels are preferred.
- Viscosity response: The rubber wheel roller increases the counterweight (to 16 tons) to improve the kneading effect.
Warm mix asphalt (WMA)
The construction temperature is 20-30℃ lower than raw materials need in hot mix asphalt plant, and the compaction cycle needs to be shortened. Choose a high-frequency vibration roller (≥2800 times/minute).
High-content RAP (recycled asphalt)
When the proportion of old materials is greater than 30%, the mixture is more likely to loosen and requires high-frequency low-amplitude vibration + multiple kneading with rubber wheels.
Key factors in selection Road Roller
Asphalt material characteristics
- Ordinary asphalt: double steel wheel vibration + rubber wheel final pressure combination.
- Modified asphalt: double steel wheel roller (high temperature resistant rubber) is preferred.
Environmental adaptability
- Urban night construction: choose a model with noise <78dB.
- Steep slope section: all-wheel drive + brake anti-skid design.
Climate adaptability
- High temperature and dry areas: add hydraulic oil cooling system, and steel wheels are hard chrome plated to prevent sand and dust wear.
- Extremely cold and snowy areas: fuel preheating device (supports -25℃ start), low temperature anti-cracking rubber wheels.
Long-term cost control
- High-frequency use projects: intelligent type reduces material waste and rework rate.
- Short-term/low-frequency projects: basic type reduces acquisition costs.
Equipment maintenance and life management
Daily maintenance points of Road Roller
- Steel wheel maintenance: clean the residual asphalt after construction and spray anti-sticking agent; regularly check the roundness of the steel wheel (error ≤ 2mm).
- Hydraulic system: replace high-temperature resistant hydraulic oil (ISO VG46) every 500 hours and check the sealing of the vibration motor.
- Rubber wheel maintenance: maintain tire pressure of 0.6-0.8MPa and avoid contact with diesel solvents.
Long-term storage recommendations of Road Roller
- Store in a dry environment after thorough cleaning, apply anti-rust grease to the steel wheel, and keep the rubber wheel pad off the ground.
- Start the engine and operate each system for 10 minutes every month to prevent rust on the components.
Macroad’s differentiated value of Road Roller
- Special design for asphalt: The anti-stick coating on the steel wheel reduces material loss, and the rubber wheel has a temperature resistance of 150°C.
- Global compliance certification: Meets CE, EPA Tier 3 and other standards, and has unimpeded access to the global market.
- Full-cycle service: Free asphalt compaction process parameter table and construction guide.
- Complete pre-sales, in-sales and after-sales experience, just for your project success.
- 24-hour delivery of accessories (vibration bearings, hydraulic hoses) from self-operated overseas warehouses.
At Macroad, we not only provide equipment, but also strive to become your lifelong partner in asphalt paving – from selection recommendations, process optimization to maintenance training, we provide borderless technical support throughout the process. Consult us now and make an appointment for the technical team’s project customization service to make every kilometer of road surface withstand the test of heavy loads and time!