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.
April 14, 2013 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

  • Cat introduces its economic D Series mini excavators
    April 8, 2013
    Cat’s new 302.4D mini excavator is one of four mini excavator models being introduced by the company at bauma. Like fellow D Series models the 301.7D and 302.2D, the 302.4D is said to be a powerful and versatile machine that works comfortably in confined spaces. With model configurations said to closely reflect their operating weights of 1.6-2.5tonnes, the new D Series machines are said by Cat to feature powerful hydraulics, a spacious operator environment and excellent service access.
    Read More
  • Debut for Godwin’s low-head Vac-Prime pump
    January 6, 2017
    Xylem company Godwin has launched the Vac-Prime low-head pump to complement its Dri-Prime medium- to high-head range. Xylem’s Godwin Vac-Prime has been specifically designed for lower-head dewatering applications. It can manage heads of 11m to 25m, flows of 100m3/hour to 374m3/hour and solids with sizes from 45mm to 75mm. The pump is available in 4” and 6” (101mm and 152mm) versions.
    Read More
  • Debut for Godwin’s low-head Vac-Prime pump
    April 17, 2013
    Xylem company Godwin has launched the Vac-Prime low-head pump to complement its Dri-Prime medium- to high-head range. Xylem’s Godwin Vac-Prime has been specifically designed for lower-head dewatering applications. It can manage heads of 11m to 25m, flows of 100m3/hour to 374m3/hour and solids with sizes from 45mm to 75mm. The pump is available in 4” and 6” (101mm and 152mm) versions.
    Read More
  • E series breakers expand Caterpillar line-up
    January 6, 2017
    There are three additional models in Caterpillar’s E Series hydraulic breaker range. The H140Es, H160Es and H180Es are designed for use on medium and large excavators from the Cat 324E to the 374E.
    Read More

Highlighted Content