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

  • Zoomlion’s world record boom pump
    January 6, 2017
    Zoomlion has unveiled its innovative new truck-mounted concrete pump, which features a 101m boom. This innovative 101m unit is now a world record holder as the longest truck-mounted concrete boom pump. The machine was launched on the 20th anniversary of Zoomlion and is one of a new generation of products developed by Zoomlion and its Italian CIFA operation. The new machine has been developed from the existing 80m truck-mounted pumps, with its innovative lightweight composite boom being a key feature of the
    Read More
  • Zoomlion’s world record boom pump
    November 20, 2012
    Zoomlion has unveiled its innovative new truck-mounted concrete pump, which features a 101m boom. This innovative 101m unit is now a world record holder as the longest truck-mounted concrete boom pump. The machine was launched on the 20th anniversary of Zoomlion and is one of a new generation of products developed by Zoomlion and its Italian CIFA operation. The new machine has been developed from the existing 80m truck-mounted pumps, with its innovative lightweight composite boom being a key feature of the
    Read More
  • Zoomlion’s tower crane record breaker
    January 6, 2017
    Zoomlion’s D1250-80 tower crane has set a world record by lifting a 5.5tonne load at a radius of 100m. The record was set in Changde Guanxi Industry Park and the machine was certified as having the largest working radius in the world. Achieving the record was not straightforward and Zoomlion had engineering challenges to deal with such as the stresses imposed while slewing and the wind load on the boom. These factors required considerable research and development as conventional boom designs could not deliv
    Read More
  • Zoomlion’s tower crane record breaker
    November 20, 2012
    Zoomlion’s D1250-80 tower crane has set a world record by lifting a 5.5tonne load at a radius of 100m. The record was set in Changde Guanxi Industry Park and the machine was certified as having the largest working radius in the world. Achieving the record was not straightforward and Zoomlion had engineering challenges to deal with such as the stresses imposed while slewing and the wind load on the boom. These factors required considerable research and development as conventional boom designs could not deliv
    Read More

Highlighted Content