Rock to Road

Products & Equipment
VTI confirms SEISMIC’s fuel saving performance

June 2, 2022  By Dynapac

As a ground-breaking addition to the highly popular and versatile CA3500D, the new Dynapac CA3500D SEISMIC Soil Roller continues to demonstrate its effectiveness not only in achieving optimal compaction but in saving fuel on the job site. This was recently confirmed by the Swedish National Road and Transport Research Institute (VTI). 

Smart, Sensational, SEISMIC 

In any compaction job, finding the right balance of factors for the best results has always been a science. Fortunately, with the Dynapac CA3500D SEISMIC Soil Roller, achieving, fast, cost-effective compaction while reducing both fuel and emissions is now easier than ever. It all begins with the unique and intelligent SEISMIC technology that automatically enables the roller to determine the optimum frequency for any material to be compacted. At the heart of the system is an onboard machine control unit, as well as a next-generation compaction meter. This game-changing feature makes it possible for SEISMIC to sense the dynamic characteristics of the material and then calculate the optimum frequency required for the best compaction results. The entire process is achieved using an advanced data flow from the SEISMIC Compaction Meter to the onboard machine control unit, which regulates the machine’s hydraulics. By working together with the soil, the SEISMIC feature automatically applies the correct amount of energy exactly where and when it’s required and can hydraulically change the vibration frequency, every 0.2 seconds for maximum performance.

Proven Fuel Efficiency 


SEISMIC’s performance has now been verified by independent sources. Recently, the Swedish National Road and Transport Research Institute supervised a series of fuel consumption tests on the Dynapac CA 3500D SEISMIC Soil Roller. It was tested in three different settings over a period of two weeks. There are three different setting on the CA 3500D SEISMIC; Standard mode where the engine runs on high RPM and the vibration frequency is 29Hz in high amplitude and 33 Hz in low amplitude, Eco mode where the engine runs on lower RPS that is automatically adjusted to the engine needs and Eco + SEISMIC mode which has a lower RPM controlled by the Eco setting and automatically adjusts the vibration frequency to maximize the compaction effort. 

The two test weeks were identical regarding procedures and were performed twice to validate that similar test results were reached. The results spoke for themselves. VTI measured a fuel reduction consumption of 28-35% compared to conventional compaction (fixed frequency). Moreover, they registered a good alignment with the onboard telematics, which reported savings of 36-38%. This means that under real job site conditions, there is an overall saving of around 55% to complete the job. 

Dynapac is a leading supplier of high-tech soil and asphalt rollers, compact equipment, pavers and feeders, committed to strengthen customer performance by being “Your partner on the road ahead.” Dynapac is represented worldwide via its own regional sales- and service offices and cooperates with an extensive and professional distribution network. Headquartered in Wardenburg, Germany, Dynapac has production facilities in Europe, South America and Asia. Dynapac is part of the FAYAT Group. Dynapac North America regional headquarters is located in Fort Mill, SC with state of the art administrative, customer support, and parts distribution facilities. 

Print this page


Stories continue below