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

  • Bonfiglioli opts for AC/DC electric drum drive for truck mixers
    April 18, 2013
    Bonfiglioli has developed an electric drum drive for the new hybrid truck mixer from CIFA, the concrete equipment specialist owned by Chinese manufacturer Zoomlion. The 500 series drum drive with electric motor offers drum rotation speeds from 15-22rpm and is suited to mixer capacities from 6-14m3. The drivetrain relies on an AC induction motor to turn the drum, which gets its power from an on-board battery pack. The electric drum drive can also be powered by mains electricity – the latter can be plugged in
    Read More
  • Anaconda is Business of the Year in Belfast
    January 6, 2017
    Anaconda Equipment, which is exhibiting its DF410 tracked screener at bauma, has been crowned Business of the Year in the Belfast Telegraph 2013 Business Awards in its home country of Northern Ireland. In making the award, the judges considered the business’s growth, export achievements and design innovations, said Anaconda marketing manager Catrina Quinn. One particular innovation relates to the transport of its machines. “All our machines can be shipped in a single container,” said Quinn. “It makes transp
    Read More
  • Rototilt celebrates 30th anniversary with additional model
    March 2, 2016
    Rototilt, which is celebrating its 30th anniversary in 2016, is introducing an additional tiltrotator to its line-up, to better suit excavators in the 14-19tonne sector. The R5 has been designed to sit between, and slightly overlap the existing R4 and R6 models, delivering an improved power to weight ratio for mid-range excavators. The attachment features improved castings and hardening techniques that will be integrated into existing models. The R5 can be equipped with an optional smart ICS control system
    Read More
  • Rototilt celebrates 30th anniversary with additional model
    January 6, 2017
    Rototilt, which is celebrating its 30th anniversary in 2016, is introducing an additional tiltrotator to its line-up, to better suit excavators in the 14-19tonne sector. The R5 has been designed to sit between, and slightly overlap the existing R4 and R6 models, delivering an improved power to weight ratio for mid-range excavators. The attachment features improved castings and hardening techniques that will be integrated into existing models. The R5 can be equipped with an optional smart ICS control system
    Read More

Highlighted Content