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Equipped with a pendulum dynamic absorber as the low vibration
mechanism (Model DH 50MRY only)
The Model DH 50MRY is equipped with the Hitachi's original pendulum dynamic absorber that absorbs
vibration from the main body by means of resonance of a leaf spring and a weight. As a result, the vibration
level of the Model DH 50MRY is remarkably lower than the current Model DH 50MB.
Fastest drilling speed and greatest chiseling performance in the class*
We conducted digital engineering to determine the optimal impact specifications. As a result, the Models
DH 50MRY and DH 50MR offer the fastest drilling speed and greatest chiseling performance in the class.
*Based on our own research
<Test conditions>
Direction
: Downward drilling
Pushing force : 98 N (10 kgf)
Test material
: Concrete panel with a compression strength of 2,352 N/cm
2
(240 kgf/cm
2
)
SELLING POINT DESCRIPTIONS
Weight
Leaf spring
0
100
200
300
400
22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54
Drill bit dia. (mm)
Drilling speed (mm/min)
DH50MB
C
B
DH 50MRY
DH 50MR
DH 50MB
Drilling speed comparison
C
B