Der neue Tunnelbagger von Wimmer



Flexibility & High Efficiency

Tunnel Excavator

The Wimmer tunnel excavator series consisting of Blue Badger, eBadger and miniBadger was specially designed for smaller tunnel cross-sections. For all applications for which the Blue Badger is too small, there will be another tunnel boring machine in the future: the Yellow Fox.

The Yellow Fox can be used for working heights from 4.2 m. The basis for the Yellow Fox is a Liebherr platform that is specially made for Wimmer. This is not a standard platform, but a special version: a Liebherr 914 Compact Litronic superstructure with a Liebherr 920 Compact Litronic undercarriage. As with the Badger family, the excavator boom is custom-made by Wimmer.

Yellow Fox 3D Animation

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Intelligent technology made in Thalgau.

Technical data

  • Breakout force 120 kN
  • Tear force 115 kN
  • Operating weight: approx. 22 t
  • Engine power: 90 kW Tier IV Final Stage
  • Working height: 4,2 – 7 m
  • High breakout force and tear force
  • Boom can be swiveled by 45°
  • Push rod to allow cylinder to be concealed/protected

Excavator technology

  • Protected routing of the hoses and lines for better protection against damage
  • Tunnel A-Lock quick coupler with SUVA type examination certificate
  • Bucket cylinder with push rod for complete protection of the cylinder
  • Boom kinematics optimized for tunneling


Safety equipment:

  • Integrated fire extinguishing system
  • Emergency stop button
  • Reversing camera - optional Blaxtair person detection system

Standard equipment:

  • Central Lubrication System
  • Reversible fan
  • 2-grouser bottom plate 500 mm with chainscraper
  • Refueling pump
  • Fire resistant hydraulic oil (PAG)
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