SWDM240B OPERATION & MAINTENANCE MANUAL
2 OVERVIEW
SWDM240B 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 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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