Hitachi M 12VC Technical Data And Service Manual page 6

(2) Powerful, 11 Amp, 2-1/4 HP motor provides power to rout smoothly through hardwoods
A motor that is most powerful and fastest in the class was developed
for the Models M 12VC, M 12SC, KM 12VC and KM 12SC. The fan is
made of aluminum and it has a ring-shaped junction at the outer
circumference as shown in Fig. 4. Thanks to the unique structure, the
moment of inertia of the armature that is an element for increasing the
cutting efficiency is increased and the class-top cutting speed is
obtained.
Table 1 Comparison between the motor size and the moment of inertia
of the armature
Motor size (mm)
Moment of inertia of the
armature x 10 -4 (kg
8
7
6
5
4
3
2
1
0
1.5
(3) Extremely low noise level - only 80 dB
The noise level of the Models M 12VC, M 12SC, KM 12VC and KM 12SC is 80 dB or less. It is the lowest
noise level in the class.
Maker
Model
Noise level (dB)
(4) Nickel-plated housing
The Models M 12VC, M 12SC, KM 12VC and KM 12SC have a nickel-plated housing. Thanks to this housing,
the cutting depth can be smoothly adjusted. In addition, the housing is scratch-proof and easy to remove
stains.
M 12VC/SC
72 mm dia. x 50 81 mm dia. x 45 72 mm dia. x 50
1.46
m 2 )
•
Graph of usable feeding force vs. cutting speed
HITACHI M 12VC
P
3.5
2.5
Feeding force (kgf)
HITACHI
M 12VC (M 12SC, KM 12VC/SC)
79.5
P
1.30
Test conditions:
Power source: 120 V, 60 Hz
Workpiece: MDF
Bit used: Straight bit dia. 1/2"
C
4.5
P
87.3 82.0
--- 3 ---
Fan
C
1.05
5.5
6.5
C
Armature
Ring-shaped
junction
Fig. 4