Efficient drilling technique for challenging construction sites

Product type designation

• Comacchio CH12
• The CH12 is part of the Comacchio CH series, which comprises different performance classes to meet a wide range of requirements in special civil engineering; the range includes, amongst others, the CH4, CH12, CH18, CH23 and CH36 models; In addition to the Comacchio CH12, terra infrastructure has acquired a further hydraulic rotary drilling rig for its own fleet; the Comacchio CH23 is available with immediate effect 

Challenge/Customer problem

• Ideal machine for a wide range of applications: the cased Kelly drilling methods frequently used in Germany, as well as continuous flight auger (CFA) drilling, uncased drilling, the construction of micropiles and soil improvement measures
• Tight timeframes, frequent site changes

Solution / Customer benefits

• Integrated automatic set-up and de-rigging system
• Easy to assemble and de-rig
• Set-up times on the site are significantly reduced

Special features

• The hydraulic rotary drilling rig is used in particular for the construction of large-diameter bored piles and foundations
• The diesel engine has a rated power of 142 kW (190 PS) and, with the CR13 KDG rotary gearbox, a maximum Torque of 113 nNm at 30 MPa; the maximum drilling rate is 41 revolutions per minute; the energy management system (HPE) regulates fuel consumption
• Winches are self-actuated / automatic in that they are re-reeled or unwound when erecting and lowering the mast
• Advantages for projects involving frequent site changes or short construction periods

Facts & Figures