Wimmer showcases the



Tunnel excavator with E-motor


A compact excavator for maximum safety and precision in tunnel construction.

The new excavator is driven by an electric motor that delivers up to 50 kW. The e-excavator achieves a higher hydraulic performance due to a 15% higher degree of efficiency than the Blue Badger. During the work process, the eBadger is connected to the power grid. The electric motor drives both the hydraulics for moving the machine and the attachments. Another big advantage is the completely emission-free work.

The eBADGER in action

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Intelligent technology in detail.

Technical data

Operating weight14,500 kg
Electirc E-Engine power50kw
Minimum tunnel height3,5 m
Minimum tunnel width2,5 m
Minimum tunnel width for 180° rotation of the upper structure4,2 m
Electric System12/24/650VDC
Supply voltage400VAC/50Hz
Current capacity125 A (max)
ConnectionCEE Plug


Attachment tools

  • Tunnel buckets
  • Hydraulic breakers
  • Hydraulic cutters
  • Demolition shears
  • Drilling units

Excavator technology

  • Special tunnel boom with 2 x 45° tilting mechanism
  • Optimal disposition an protection of hoses and pipes
  • Wimmer quick coupler AL Safety for a simpler tool changing
  • Special position of cylinders for a better protection of components
  • Boom kinetics optimized for tunnelling
  • Central greasing system


  • Cell chemistry: Nickel-manganese-cobalt on the basis of lithium ions
  • Nominal capacity: 75 Ah
  • Nominal energy content: 52 kWh
  • Nominal voltage: 691,2 V
  • Supply Voltage LV: 24 V DC
  • Weight: 350 kg 
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