MBW SP160 - Manual (Page 8)

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2. The Soil Pick is not an elaborate blow pipe.
Conventional blow pipes produce subsonic air
stream velocities between 500 and 600 mph, and
cannot provide the cutting edge required for soil
excavation. Blow pipes can be used for moving loose
debris, but even then are outperformed by the Soil
Pick.
3. The Soil Pick is a selective excavator. The violent
decompression of air is sufficient to loosen porous
soil, but will have virtually no effect on non-porous
objects such as buried utilities or plant roots.
4. The Soil Pick has a cutting edge of four to eight
inches, depending on the model. This means the
nozzle must be kept close to the soil for the
decompression to be effective. Beyond the cutting
edge, substantial decompression has occurred and
the Soil Pick becomes a highly effective blower for
loose debris.
5. The Soil Pick will not cut through frost, but it will work
well below the frost line.
6. The Soil Pick works extremely well in all types of
granular soils and cohesive soils with a good granular
gradation. The effectiveness will drop off as the
granular component in cohesive soils decreases.
Wet clay soils may be too plastic to loosen.
7. The Soil Pick does not require lubrication. The air
supply must be free of oil to achieve proper
performance.
8. The Soil Pick is not designed as an impact or prying
tool. The barrel is manufactured of a composite
material designed to withstand high internal
pressure. It is not designed to withstand prying or
impact forces.
9. The Soil Pick is an effective excavation tool even
when there is no concerns of buried utilities. In most
cases, productivity is enhanced dramatically
compared to pick and shovel work.
10. The Soil Pick is highly effective when used to clean
saw joints and cracks in concrete. It can grossly
outperform a blow pipe, and provide a very clean
surface for excellent sealant adhesion.
11. The Soil Pick is an effective tool for nursery
applications. Because it is a selective excavator, it
will not damage roots. Because it is an air tool, it is
also aerating the soil while digging.
12. The Soil Pick has an almost endless list of uses. It
can effectively clean barges, railroad cars,
construction equipment, and more. It can be used for
shallow trenching, post hole digging, stump removal,
pothole preparation prior to patching, and many more
unique applications.