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

  • JCB shows Stage Tier 4-compliant skid steers
    January 6, 2017
    A Tier 4 Final-compliant tracked loader has been unveiled by JCB at bauma 2013. The 225T machine is powered by JCB’s Ecomax engine that uses up to 9% less fuel than the previous Dieselmax version, which was, itself, said to be up to 16% more efficient than some competitor machines. In addition to the new engine, the large platform models in JCB’s 17-strong skid steer/compact loader range also get electro-hydraulic controls as used on small platform machines. This allows companies to specify H-pattern contro
    Read More
  • JCB shows Stage Tier 4-compliant skid steers
    April 16, 2013
    A Tier 4 Final-compliant tracked loader has been unveiled by JCB at bauma 2013. The 225T machine is powered by JCB’s Ecomax engine that uses up to 9% less fuel than the previous Dieselmax version, which was, itself, said to be up to 16% more efficient than some competitor machines. In addition to the new engine, the large platform models in JCB’s 17-strong skid steer/compact loader range also get electro-hydraulic controls as used on small platform machines. This allows companies to specify H-pattern contro
    Read More
  • Diamond in the Pearl: China’s Hong Kong-Zhuhai-Macao Bridge complex
    March 8, 2018
    People in the Pearl River Delta are celebrating the Chinese New Year with the imminent opening of the Hong Kong-Zhuhai-Macao Bridge. David Arminas reviews progress. China’s Spring Festival, or Lunar New Year, is celebrated with the usual enthusiasm and spectacular fireworks. But celebrations will be particularly joyous for many people in the southern Pearl River Delta. The soon-to-be-open Hong Kong-Zhuhai-Macao Bridge (HZMB) will slash travel time between the Hong Kong Special Administrative Region, Zhuh
    Read More
  • Fraccaroli & Balzan targets large quarries with its new filter press
    January 6, 2017
    Fraccaroli & Balzan, which designs, manufactures and installs waste water treatment systems, is showcasing its biggest filter press yet at bauma 2013. Previously the Italian firm only made lateral beam-type filter presses, which can only go up to a certain size and capacity. Now Fraccaroli & Balzan has developed high beam filter presses, which can be much larger and designed for quarries that need to process high volumes of material. “This filter press is for big quarries with big production that prefer to
    Read More

Highlighted Content