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

  • Versatility for demolition and recycling
    July 31, 2012
    A growing demand for equipment to be used in recycling applications is helping boost the market for demolition attachments Manufacturers have been keen to invest in technology, developing new models and with more innovations to come. There are several key players in the hydraulic breaker sector, with Atlas Copco and Sandvik dominating this market segment. However other breaker manufacturers are major players too, including Indeco, Furukawa and NPK, while there are also specialist attachment producers such a
    Read More
  • Crushing and compacting in one
    September 3, 2024

    Hamm is now offering new vibration crusher drums for its HC Series compactors. The machines feature new tool holders, can handle crushing and compacting in a single step and meet Stage V/Tier 4 Final emissions requirements, with Tier 3 emissions variants due shortly. 

    These compactors have been designed specifically to crush and compact rock and stone, allowing processes onsite to be streamlined by reducing the work and expense needed for material preparation and transport. For customers, this means time, cost and CO₂ emissions can be cut by up to 50%. 

    Read More
  • GOMACO develops highly versatile compact sidewalk paver
    January 6, 2017
    GOMACO is introducing the GT-3200 sidewalk paver with an adjustable aggregate base mold on the front and a sidewalk paving mold on the rear. This three-track paver is designed for zero-clearance sidewalk rehabilitation projects, to meet a contractor’s unique request. The front-mounted adjustable aggregate base mold spreads the base aggregate for the sidewalk. During the first pass, rock is placed on grade and an auger spreads the material, while three pan vibrators fitted to the mold start compaction. The b
    Read More
  • GOMACO develops highly versatile compact sidewalk paver
    January 28, 2013
    GOMACO is introducing the GT-3200 sidewalk paver with an adjustable aggregate base mold on the front and a sidewalk paving mold on the rear. This three-track paver is designed for zero-clearance sidewalk rehabilitation projects, to meet a contractor’s unique request. The front-mounted adjustable aggregate base mold spreads the base aggregate for the sidewalk. During the first pass, rock is placed on grade and an auger spreads the material, while three pan vibrators fitted to the mold start compaction. The b
    Read More

Highlighted Content