When grinding with round attack picks, each tool penetrates into the rock along parallel paths and breaks material out from the space between the paths.
The cutting rate depends to a large degree on the uniaxial compressive strength of the rock being cut. Other significant factors affecting production rates include the hydraulic pressure and flow that the excavator is able to supply to the attachment, as well as the stability and weight of the excavator.
Trenching attachments from KEMROC provide options for trench widths from 4 centimeters.
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