ER 1500 X – Doosan DX 300

Preparation for foundations


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Drum cutter ER 1500 application video

Preparation for foundations


Application details


This foundation, just in the middle of the spa town Bad Wildbad and right next to the edge of a slope, had to be excavated.  The first layer consisted of loose soil and small rocks.  Proceeding to the second layer revealed weathered and jointed gneiss and granite.

The third layer contained highly compacted, dense gneiss and granite (red and white) without any fissures or cracks.  The Doosan DX 300 was attached with an Erkat ER 1500-3.  A working surface had to be prepared by cutting a half moon profile into the rock.  Dust was suppressed by using water spray.

Total excavation
250 – 300 m³

Compressive strength of the rock
80 – 200 MPa

Production rate
Gneiss: 3.2 – 4.0 m³/hr
Granite red: 1.4 – 2.0 m³/hr
Granite white: 1.0 – 1.5 m³/hr

Pick consumption
Gneiss: 1.2 pcs/m³
Granite red: 2.0 pcs/m³
Granite white: 4.2 pcs/m³


No two jobsites are alike.
The productivity depends on the material characteristics or rock hardness, the settings and condition of the carrier unit, the technical and wear condition of the attachment and the operator skills, as well as a couple of other factors. The given figures can vary based on different conditions. We reserve the right to change technical data without further notice.