Vögele: Spray Paving the Way

Vögele: Spray Paving the Way

New in the Vögele Special Class is the SUPER 1800-3I Sprayjet – a spray paver now with a new operating concept.

None of our roads are getting any younger, but with the promise of a level of government investment guaranteed by legislation through Highways England there is a certainty of funding that should reassure contractors that investments in capital equipment will reap financial rewards.

In order to minimise disruption to motorists, what the organisation charged with upgrading and improving our road network is looking for from its supply chain is innovation in delivering projects effectively and efficiently and that includes the technologies employed.

Rehabilitating roads by replacing the surface course is a highly cost-effective and eco-friendly process, which is why SprayJet technology from Vögele has been proving its value for many years and its new SUPER 1800-3I unit continues in that tradition.

The machine can be utlised both as a spray paver and as a conventional asphalt paver, with a maximum spray width on the paver of 6m, whilst 9m pave widths are achievable as a conventional paver, without spray function.

Even the best machine with the most advanced technology can only really show its strengths if it can be operated as easily, safely and intuitively as possible. For maximum user-friendliness, one key feature of this unit is that operation of the spray module has been integrated into the ErgoPlus 3 operating concept.

What that means in practice is that all functions for preparation, spraying and cleaning are conveniently selected and started via the touchscreen and work sequences are set automatically in accordance with the function that’s has selected and started.

Depending on the installed nozzle size, and the selected rate of spread, the maximum pave speed is calculated by the control unit and displayed on the operator’s console, ensuring uniform application of the emulsion. The rate of spread can be set here just as easily and the nozzles calibrated or switched on and off individually and, because it is out of site of the operator, correct operation of the front spray bar is monitored electronically.

The Ergoplus 3 Screed Console

Voegele_SJ-3i_3All the essential data is displayed on the two ErgoPlus 3 screed consoles. Self-explanatory symbols make it easy to set or adjust parameters for the screed, conveyors and augers or grade and slope control. Hydraulic adjustment of the crown, for example, can now be carried out very conveniently via the screed consoles, whilst the Vögele SmartWheel is another useful new feature.

With it, the pave and spray width can be set in two speeds: slow, for precise screed width control along an edge, or fast, for rapid extension or retraction of the screed. The two outer nozzles on the lateral spray bars can be activated and deactivated to obtain an accurate sprayed edge.

The Vögele Sprayjet Module

The innovations don’t stop there, however. The insulated emulsion tank, for instance, now has a capacity of 2,100 litres, and that capacity can be increased to 7,100 litres with an optional additional emulsion tank. The integrated electric heating (2 x 7kW) ensures that the emulsion is reliably maintained at the ideal temperature for spraying.

What’s more, a heated emulsion pump circulates the bitumen emulsion in the tank, thus ensuring that it is permanently homogenised. A new additional filler port on the left-hand side makes for greater flexibility when refilling and, last but not least, all the main service points are readily accessible behind large service panels, even with the spray module installed.

Clean and Safe Spraying Process

The unit is equipped with five spray bars. The front spray bar has six spray nozzles and is located between the machine’s crawler tracks right behind the push-rollers. An articulated spray bar installed on each side of the paver comes with seven nozzles per side.

Finally, a short spray bar with two nozzles is provided right behind each crawler track. This arrangement of the spray bars allows full coverage of the existing surface with emulsion, even when the pave width varies. The rate of spread can be selected accurately within the range of 0.3 and 1.6kg/m².

Voegele_SJ-3i_2The SprayJet nozzles do not spray the emulsion continuously, but operate instead in pulsed mode. The frequency of the spray pulses is adjusted automatically as a function of the selected rate of spread, pave speed and pave width. As a result, the existing surface can be completely covered with a uniform film of emulsion, without any overlaps.

Emulsion is applied at a low spray pressure of no more than 3 bar. In combination with the high-quality spray nozzles, this allows the emulsion to be sprayed cleanly and without harming the environment.

“Dash 3” Features

It goes without saying that the new spray paver also includes all the features of the “Dash 3” paver generation. The Vögele EcoPlus package, for instance, significantly reduces both fuel consumption and noise levels. The AutoSet Plus functions ensure quick and safe relocation of the paver on site and make it possible to store individual, frequently recurring paving programs.

Vögele Extending Screeds For Perfect Pavement Quality

Two screed options are available: AB 500 and AB 600. Either of the extending screeds handles pave widths up to 6m. AB 600 comes with a basic width of 3m and extends hydraulically up to 6m. AB 500 builds up to its maximum width of 6m with additional bolt-on extensions (75cm). The widths of the screeds are limited electronically to a maximum of 6m. As a conventional paver without spray function it can pave widths of up to 9m with the AB 600.

For more information visit www.voegele.info

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