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With our LAYJET method, we are on average 10 times faster than with conventional technology.

Rainer Dunst, Managing Director of LAYJET Micro-Rohr Verlegegesellschaft from Steiermark, Austria - 936 Vario

With our LAYJET method, we are on average 10 times faster than with conventional technology.

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Broadband, fibre-optic and digital network expansion – just a few of the buzzwords surrounding a highspeed internet for all. But a great deal of population still have a very slow connection, if at all. 2 % of German households have a fibreoptic connection. Efficient laying the fibre-optic network is a passion of the Austrian company LAYJET.

Rainer Dunst, Managing Director of LAYJET Micro-Rohr Verlegegesellschaft m.b.H., has just come back from a multi-day demonstration tour in Germany. At the company headquarters in Ebersdorf, Austria, he helps himself to another coffee (after driving through the night), before enthusiastically talking about demonstrating his solutions. "We presented our technology live at several locations near Regensburg," says the 52-year-old. "We had employees from road-maintenance depots there, as well as network providers who wanted to get a first-hand look at our system."

What's so revolutionary about the LAYJET system? The technology was developed by road construction experts from Styria, Austria, together with DW-Tech, Graz University of Technology and Vienna University of Technology, to make sure the cables were laid smoothly in the verges without affecting the roadway itself. More than two years of work were spent on the development. Several patents were filed by the state of Styria in Austria. The LAYJET solution has been in official use since 2017 and speeds up the laying process many times over. The laying unit is a Fendt 936 Vario with cable drums on the front of the tractor and the LAYJET milling cutter at the rear.

Smart circular system

Up to three kilometres of micro-pipe joints can be laid every day – almost without any hold-ups. Where you used to have to live with weeks of construction sites, dirt and traffic jams, the LAYJET troops leave behind a clean worksite after just a few hours of work. Even paved surfaces and driveways are easily milled and immediately sealed. In one work sequence, a milling trench is made, up to three micro-pipes are laid, a warning tape is put in place and the trench is sealed again with the same excavated material. Right after the laying process, a specially developed, multi-layer compression of the trench takes place. The complete laying process is recorded by 4 cameras and monitored from the tractor's command centre.

10 times faster than usual

It all started with the client having a dilemma. "While the Styrian state government office, Division 7, is responsible for maintaining the route network throughout the region, it was also commissioned by Governor Hermann Schützenhöfer to expand the existing road network," says Rainer Dunst. We have protect the road but need to damage it first by laying the cables. The state officials addressed this challenge and, with machine builder Wolfgang Dunst (Rainer's brother), and the involvement of the Technical University of Vienna, developed LAYJET technology. This unique solution soon gained a foothold on the market. The existing three milling systems are already fully booked for 2019.

Specialist personnel are absolutely necessary when implementing LAYJET, as generic conditions such as the ground, road structure and routing must be taken into account. The new technology is under ongoing development, so staff training takes place every two months. The result proves the pioneers from Styria right. "With our LAYJET method, we are on average 10 times faster than with conventional technology," says Rainer Dunst. "If an excavator works 200 m to 300 m per day, we can use our method to lay up to three kilometres a day. With the right general conditions, such as ground structure and routing, we can even lay up to 5 kilometres.

The Vario is part of the system

Tractors from Marktoberdorf have been working for Wolfgang Dunst's roadside maintenance company for more than seven years. The new LAYJET system also uses Varios. "Our method really only works with a continuous setup. We have to be able to drive at very low speeds," says Wolfgang and Rainer Dunst, underlining why they chose Fendt." Our tractors also need to be robust and do their job reliably on the toughest, stone-ridden ground."

In agricultural equipment retailer, Markus Bierbauer, Rainer Dunst has also found a partner who responds quickly and flexibly to his requirements. "A reliable local partner and a machine that works are two essential factors for us that need to be right. My philosophy in life is with a long-standing, functioning partnership, everyone's a winner!" Three more LAYJET systems are being built for 2019, also for use in Germany. After all, you need high-speed internet everywhere!

From left to right: Kurt Wipfler (Fendt Plant Manager for Austria), Ewald Höfler (Regional Head for Fendt ACA Center Bierbauer), Rainer Dunst and Markus Bierbauer (Managing Director and Owner of ACA Center Bierbauer)

LAYJET Micro-Rohr Verlegegesellschaft:

  • Company headquarters: Ebersdorf, Steiermark
  • Founded: 27 August 2017
  • Cooperative of DW-Tech Maschinenbau GmbH and Meisterbankett GmbH
  • Employees: 35