Archive | February, 2017

Segment Erector for Tunnel Boring Machine

Thursday, February 16, 2017


Galbiati Group recently realized one 4 ton- segment erector for a TBM (Tunnel Boring Machine) designed for an excavation project for the improvement of water supply in the Philippines.

The erector comprises a rotating structure controlled by two planetary gears with sprocket drives and a crown wheel. The structure is supported by six rollers and moves on chromium-plated tubular guides.

Segment Erector for Tunnel Boring Machine

Segment Erector for Tunnel Boring Machine

The erector is equipped with a mechanical pick-up unit in order to grasp segments.(pick-up two pins). The mechanical pick-up unit grasps and retains segments for the entire duration of the positioning operations with three independent movements:

  • Swinging = 6°
  • Pitch = 6°
  • Roll = 6°

Segment Erector for Tunnel Boring Machine

Erector technical data:

  • Longitudinal stroke= 1,800 mm
  • Overall rotation = ± 200°
  • Rotational speed = 2 rpm/minute
  • Maximum load  = 4 ton
  • Weight = 19,000 Kg
  • Intrados diameter  = 4,200 mm
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Galbiati Group - Engineering & Machining

23848 Oggiono (Lc) Via Cà Bianca Pascolo, 26 Italy | Fax +39 341.2633300 |
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