Chain trenchers for narrow trenches

The ETR range of chain saw trenchers opens up a completely new range of opportunities for excavators. For the first time, a trenching excavator attachment that is not limited to working in soils, but also works in rock with 90 MMPa compressive strength.

The ETR trencher can produce trenches with perfect profiles in widths from 20 to 60 centimeters to a maximum depth of 2 meters. Chose from a range of cutting chain widths, each fitted with wear resistant picks.

When starting the trench, the ETR is supported while sumping down to the desired cutting depth. When the trencher has reached the required depth, the excavator is driven backwards or the trencher is pulled forward with the excavator arm. The housing has a spoil discharger to deposit spoil to the side of the trench.

  • Cutter chain fitted with wear resistant picks to achieve maximum performance with minimum wear costs
  • Driven by two high torque hydraulic motors to obtain maximum cutting force
  • Housing with spoil discharger and sumping aid
  • Heavy duty chain guides
  • Maintenance free cutter chain with high operating life
  • Adjustable length cutter chain
  • Rigid and maintenance free chain transmission
  • Conversion for dust extractor available as an optional extra

Compare Models

ETR 1 ETR 2 ETR 3
→ Technical data → Technical data → Technical data
Recommended excavator weight:
18 – 25 t 		Recommended excavator weight:
25 – 35 t 		Recommended excavator weight:
35 – 60 t
Rated power:
90 kW 		Rated power:
130 kW 		Rated power:
220 kW
Recommended oil flow at 150 bar:
170 – 200 l/min 		Recommended oil flow at 150 bar:
250 – 350 l/min 		Recommended oil flow at 150 bar:
350 – 500 l/min
Maximum uniaxial compressive strength:
40 MPa 		Maximum uniaxial compressive strength:
50 MPa 		Maximum uniaxial compressive strength:
90 MPa
Cutting width, standard (A):
200 – 450 mm 		Cutting width, standard (A):
200 – 450 mm 		Cutting width, standard (A):
300 – 600 mm
Cutting depth (B):
1,000 – 1,500 mm 		Cutting depth (B):
1,000 – 1,500 mm 		Cutting depth (B):
1,500 – 2,000 mm

ETR 1

  • Recommended excavator weight
    18-25 t
  • Rated power
    90 kW
  • Recommended oil flow at 150 bar
    170–200 l/min
  • Maximum oil flow
    220 l/min
  • Maximum uniaxial compressive strength
    40 MPa
  • Cutting width, standard (A)
    200–450 mm
  • Cutter depth (B)
    1,000 – 1,500 mm
  • Weight
    2,800 kg
  • Standard pick 1)
    ER 12/45/38/22 HC


1) Cutter chains can be supplied with picks for special applications as required.

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ETR 2

  • Recommended excavator weight
    25-35 t
  • Rated power
    130 kW
  • Recommended oil flow at 150 bar
    250–350 l/min
  • Maximum oil flow
    350 l/min
  • Maximum uniaxial compressive strength
    50 MPa
  • Cutting width, standard (A)
    200–450 mm
  • Cutter depth (B)
    1,000 – 1,500 mm
  • Weight
    3,000 kg
  • Standard pick 1)
    ER 12/45/38/22 HC


1) Cutter chains can be supplied with picks for special applications as required.

Enquire Now

ETR 3

  • Recommended excavator weight
    35-60 t
  • Rated power
    220 kW
  • Recommended oil flow at 150 bar
    350–500 l/min
  • Maximum oil flow
    600 l/min
  • Maximum uniaxial compressive strength
    90 MPa
  • Cutting width, standard (A)
    300–600 mm
  • Cutter depth (B)
    1,500 – 2,000 mm
  • Weight
    6,000 kg
  • Standard pick 1)
    ER 17/75/70/30 Q


1) Cutter chains can be supplied with picks for special applications as required.

Enquire Now