Simex’s TF 800/V rotary cutters

Italian firm Simex has produced a new TF 800/V rotary cutter for tunnel excavation applications. Two of the new rotary cutters were used to help construct the key Varzo Tunnel link in Italy, close to the border with Switzerland.
January 6, 2017 Read time: 1 min
Italian firm 1141 SIMEX has produced a new TF 800/V rotary cutter for tunnel excavation applications.

Two of the new rotary cutters were used to help construct the key Varzo Tunnel link in Italy, close to the border with Switzerland.

Attached to a pair of 2300 Komatsu PC138 US short-radius excavators, and featuring a modified boom and special bracket, the rotary cutters were used to cut around 20cm deep and 40cm wide into the crown of the tunnel in order to create the inserts for two-hinged steel ribs every 1.75m, anchored to ties with a C-shaped fastening element (totalling 44 elements).

The cutters, deployed by Italian contractor Ceprini Costruzioni (CC), were equipped with drums measuring a width of 40cm and diameter of 110cm, and fitted with 144 Betek VC 33 bits with a 2.2cm bit holder.  Both cutters were said to have proven productive and reliable and were operated without interruption for 164 hours each.

www.simex.it

View more stories

For more information on companies in this article

Simex
Komatsu

Related Content

  • Six bauma Innovation Award 2013 winners revealed
    April 15, 2013
    The six bauma Innovation Award 2013 winners have been revealed. Pipe Express, from Herrenknecht, triumphed in the Machinery category, while AutoPilot Field Rover, from Wirtgen, took the Machine Components section. The Construction process/Construction work category had two winners.
    Read More
  • Developments in the concrete pavers market
    February 20, 2012
    The market for concrete pavers continues to fuel research and development into new models writes Mike Woof. The range and breadth of concrete slipforming and paving equipment on the market continues to grow as firms develop new and improved models. Prior to the recent CONEXPO-CON/AGG 2011 construction equipment show in Las Vegas, some of the best known manufacturers had already announced their new and improved slipforming machines. GOMACO, Guntert & Zimmermann, Power Curbers and Wirtgen all had recent or ne
    Read More
  • Korean bridge construction poses challenges
    April 5, 2012
    On South Korea's southern coast, an innovative highway sea crossing is providing many engineering challenges The new Busan-Geoje crosses from South Korea's second city to its biggest island and is slightly shorter than the 12km of the country's famous Incheon project. In addition the main cable stay bridge for the Busan-Geoje project has a 475m span rather than the 800m of the Incheon central span. However the 8.2km Busan-Geoje project faces perhaps greater technical challenges and also includes a second b
    Read More
  • Montabert extends low-cost breaker offering
    January 6, 2017
    Breaker specialist Montabert has increased its budget offering with a new two-speed unit and additions to its Blue Line. By restricting the speed choice to two, the new V3500 breaker (suitable for carriers from 35 to 60tonnes) is around 20% cheaper than its full-spec multi-speed counterpart while still allowing the machine operator the choice between maximum speed and maximum impact power. The company’s Blue Line, described as a simple breaker design, has been extended at the light end of the range by the a
    Read More

Highlighted Content