SWDM40 OPERATION & MAINTENANCE MANUAL
Tooth-socketed cylindrical
drill
Straight barrel design, lower
part is open for slag inlet.
Lower part of the barrel with
annular edge is equipped with
different cutting teeth. Drilling
method is ring cutting with
high efficiency into the rock.
Rock enters the barrel in
columnar during drilling.
Medium hard core drilling
Cone-socketed cylindrical drill
Straight barrel design, lower
part is open for slag inlet.
Lower part of the barrel with
annular edge is equipped with
cone. Drilling method is ring
cutting with high efficiency
into the rock. Rock enters the
barrel in columnar during
drilling.
Slightly weathered and
unweathered hard bedrock
Tooth alloy rock-socketed
cylindrical drill
Straight barrel design, lower part is
open for slag inlet. Lower part of the
barrel with annular edge is welded
with carbide tooth. Drilling method
is ring cutting with high efficiency
into the rock. Rock enters the barrel
in columnar during drilling.
Slightly weathered and
unweathered hard
bedrock, large boulders
Clamped rock-socketed
cylindrical drill
Straight barrel design, lower part is
open for slag inlet. Lower part of the
barrel with annular edge can be
equipped with cutting teeth, cone
and lumpy alloy. A grab mechanism
is installed in the inner part. Drilling
method is ring cutting with high
efficiency into the rock. Rock enters
the barrel in columnar during
drilling.
Bedrock and large
gravel layer
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