The comparison between full hydraulic road roller and mechanical road roller on compaction performance, safety, and costs will give you a clear picture of the applications of road rollers in today's marketplace.
Road rollers are mainly used for compacting materials such as gravel, sandy soil, dirt, concrete or asphalt and more in the construction of roads or foundations. Judging by the transmission system, it is mainly available in two types: the mechanical drive roller and the hydraulic drive roller.
Compaction efficiency and performance
The full hydraulic single drum roller is easy to operate compared with the mechanical one, as the operator can automatically change the traveling speed and direction while the mechanical roller has to operate manually with complex movements of clutch, gears, and brake. Much time and operator training cost thus saved for you with hydraulic roller, and the working efficiency can be increased by 20%.
Meanwhile, the compaction performance of full hydraulic single drum roller is better than that of the mechanical roller. It takes no more than three second for the full hydraulic roller to start vibration, and no shock or indentation left when the machine starts. As for mechanical roller, longer time is taken to shift from traveling mode to vibration mode meaning a long section of uneven surface.
In the road construction, the excitation force required to compact the sandy soil is different from that of compacting gravel. The full hydraulic road roller is more flexible and intelligent in the control of the vibratory amplitude and vibration frequency; yet the mechanical road rollers only have two fixed gears and vibration frequency.
Safe and comfortable operation
The traveling system and braking system of hydraulic road roller are all controlled by the same power system, while that of the mechanical roller is separate. When the mechanical roller stops, brake distance is relatively long, handbrake and metal braking parts are more likely to be worn. Particularly, if there are many people and machines on the construction site, the hydraulic single drum roller can stop immediately simply by pressing one button in case of emergency, but the mechanical roller is uncertain.
In addition, the hydraulic roller is easy to operate, stable and reliable, greatly improving the operator's driving experience, releasing their fatigue, and increasing working efficiency and safety.
Mechanical single drum roller is lower in price, but in perspective of long term investment, the hydraulic road roller is more cost effective with longer service life, zero failure rate and low maintenance or repair costs. Besides, the hydraulic system can withstand continuous operation even in extreme weather ranging from minus 40 degree Celsius to 60 degree Celsius with no trouble of oil leak.
Nowadays, hydraulic road rollers are predominantly used in the large construction projects including expressway, railways, airport field, big dam or stadium because only the hydraulic rollers can meet the project's high requirement of compaction performance. Mechanical road rollers are more suitable for private or smaller construction project pursuing for short-term returns.
With the improvement of design and manufacturing strength, SANY launches its new generation 20t and 22t full hydraulic single drum rollers recently, moreover, competitive price is offered through direct selling, helping you save big but earn more.