Adjustments are stepless, ensuring precision. Only the front tamper is adjusted, which is all that is needed to optimise pre-compaction. The second tamper remains in its fixed position.
Previously, front tamper stroke could only be modified manually. Doing so was time-consuming and required shutting down the paver.
Low-temperature asphalt
The VDTA-V is ideal for the challenges presented when paving with low temperature asphalt (LTA). The double-tamper system addresses LTA’s tight compaction window by striking the material twice, a process the VDTA-V screed makes significantly easier.
Because tamper changes were so challenging, crews often compensated in other ways, such as tweaking tamper speed. But this was imprecise, impacted the paver’s behaviour, and sometimes created additional problems, such as increased wear.
Each of the VDTA-V’s screed sections can be adjusted independently, from a range of 0,5mm to 10mm. Sectional adjustments are important when paving curved roads and roundabouts.
Other benefits
- Tamper bearings on the VDTA-V are maintenance-free for the paving season. Previously, greasing was required every 1-2 days.
- Front-tamper heating optimises heat distribution.
- A new diagnosis system makes it easier to assess performance of screed heating elements.
Stand: FS.909-910
