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A short animation about oscillatory vibration.
Hamm models that incorporate the company's oscillating technology include the HD 070V, HD 090V, HD 0120V and 3412 VIO asphalt rollers. These machines have a conventional vibratory system on the front drum, but use Hamm's oscillating drum at the rear.
An oscillating roller only exerts horizontal forces on the asphalt layer, together with the static load from the machine itself. The roller is always in contact with the surface and the horizontal movement 'massages' the surface. This leads to efficient compacting with very little vibration transmitted to the surrounding environment.
HAMM offers pneumatic tire rollers with an operating weight of between 8 and 28 t (depending on ballasting) for all markets. The pneumatic tire rollers are suitable for earthwork and asphalt construction.
Since oscillating rollers help improve productivity and create a smoother finish on challenging mixes, it's no surprise this technology is gaining momentum in the asphalt …
"Tandem Rollers equipped with one oscillation and one vibrating drum are used across all types of asphalt mix designs. Both features can be switched off and the roller then utilised in static. "The oscillation drum moves both in a forward and backward movement and the drum directs its compaction force into the ground in the form of ...
Some contractors have even found it permits them to remove one or more rollers from a job. "Oscillation has helped our compaction quite a bit," says Kevin McCann, Journagan asphalt superintendent.
According to Bruce Monical, Marketing Manager, Hamm's top-of-the-line rollers use an oscillating force for compaction rather than the common vibrating type of compaction. Oscillation compaction works by "massaging" the asphalt mix from side to side, rather than by forcing it …
Oscillatory rollers impart compactive energy with a different dynamic. The roller drum oscillates back and forth rather than vibrating up and down, transferring forces largely along the horizontal plane, as defined in the How to Roll for Bonus, Part 2 of the series. The resulting compactive energy is "softer" and more localized than is typically experienced with a traditional vibratory roller.
Sakai's unique ND Series Oscillating rollers offer the ability to switch between oscillation and vibration in both drums, giving you greater versatility.
An oscillating roller mainly exerts horizontal forces on the asphalt layer, together with the static load from the machine itself. The roller is always in contact with the surface and the ...
With the new SW994ND, Sakai has introduced its fourth compactor with oscillation. The 84-inch-wide double-drum roller, launched at ConExpo 2020, achieves good compaction results not only for dense-grade hot mix asphalt mixtures but for stone matrix asphalt mixes used for highways, airports and test tracks, the company says.
Oscillating drums are also more effective than rolling in static mode, without any vibration at all. Oscillating compactors are ideal for finish rolling, joint compaction, and rolling on bridges or near buildings and structures." Drum roller oscillation is said to improve compaction results.
With the new SW994ND, Sakai has introduced its fourth compactor with oscillation. The 84-inch-wide double-drum roller, launched at ConExpo 2020, achieves good compaction results not only for dense-grade hot mix asphalt mixtures but for stone matrix asphalt mixes used for highways, airports and test tracks, the company says. Gear-driven oscillation.
Smooth drum rollers use static pressure, vibration, and impact to compact materials such as gravel, rocks, sand and asphalt. Most road construction projects use smooth drum rollers. Instead of just relying on static force (weight of the drums), a vibratory roller uses vibrating force to …
