SWDM40 OPERATION & MAINTENANCE MANUAL
2 OVERVIEW
SWDM40 rotary drilling rig is designed for cast-in-place pile 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 ground foundation construction, such as subway, bridge,
docks and high buildings.
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 CONDITIONS OF USING ENVIRONMENT
Temperature in using environment for this drilling rig is -15 ℃ ~ 45 ℃ , and ground
inclination angle should be not over 2°. If there’s a storm, or the wind speed is beyond 15m/s,
stop working and retract drill mast. It’s not allowed to work in the environment involving with
heavy dust, inflammable & explosive material, toxic substance and weak light source
(illumination intensity is no more than 100Lx).
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