SWDM320HB OPERATOR’S MANUAL
2 Description
SWDM320HB rotary drilling rig is designed for cast-in-drilled-hole construction and widely
used in foundation construction of roads, bridges, and high-rise buildings with many features
like high torque, high mobility and high efficiency. Equipped with long or short auger, drilling
bucket, core barrel or hydraulic hammer, it can be used in drilling clay, sand, gravel or medium
weathered rock layers. The machine can be suit for large part of area soil condition in our
country, and can be widely used in the subway, bridge, dock, high building construction.
2.1 Applicable Range
Use short auger for clayed soil, silty soil, backfilling, medium density sand and weathered rock
layers above water table.
Use drilling bucket with slurry for clayed soil, silty soil, sand, backfill, gravel and weathered
rock layers below water table.
Use rock auger for gravel, medium hard rock and weathered rock layers.
Use core barrel for weathered rock layer and cracked rock layer.
Use hydraulic hammer for construction foundation prefabricate concrete.
2.2 Operation Condition
Ambient temperature should be-15℃～45℃ and ground gradient should be less than 2°.
Stop working and boom down drill mast when rainstorm occurs or wind speed is more than
15m/s. Cannot be used in high wind, flammable, explosive, toxic, dark(Light is below 100Lx)
environments.
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