Cutting/Cutter Head

Definition - What does Cutting/Cutter Head mean?

A cutting head or cutter head, often used as "cutting/cutter head," for short, is the leading edge of a boring machine and is driven by an electric motor that makes it rotate. As the cutter head rotates, it excavates the soil in its vicinity. Cutter heads are circular in cross section and are used as such or in combination with other types of bits, cutters and picks. The cutter heads are selected depending on the kind of soil the boring machine will encounter.

Trenchlesspedia explains Cutting/Cutter Head

Horizontal auger boring machines (HAB), tunnel boring machines (TBM) and microtunnel boring machines (MTBM) are some of the machines that use cutter heads for drilling boreholes for laying pipelines. Boreholes pass through a variety of sub soil conditions. These conditions are determined beforehand by conducting soil and geotechnical investigation. It is very necessary to know the kind of strata the machine will be digging through to avoid damage to the cutter head. For example, an auger boring machine can excavate through clay, gravel and rock. Using a clay cutter head to cut through rock can damage it. The cutter heads also have a crushing mechanism to crush the excavated material, which it then passes back to the surface with the help of the rotating augers.

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