Hitachi M 12VE Technical Data And Service Manual page 5

Powerful 2,000 W (3-1/4 HP) motor (M 12VE)
In order to reduce both weight and price, the new model incorporates an armature fan made of resin, unlike
the one made of aluminum in the existing model. The use of the resin fan lowers the armature's moment of
inertia, which is a factor in increasing cutting efficiency. Therefore, the new model is somewhat inferior to the
existing Model M 12V2 in terms of cutting efficiency for heavy cutting work as shown in the figure below.
However, the new model can provide cutting efficiency equivalent to that of the existing model and higher
than that of the C1 in the practical working range of relatively light cutting work because it adopts a motor
having the same rated power (2,000 W) as that of the existing model, while achieving a significant weight
reduction.
Model
Armature's moment of
inertia
-3 -4
x 10 N•m [x 10 (kg-cm)]
18
16
14
Hitachi M 12VE
12
10
8
6
4
2
0
20 (2)
20 (2)
2
Hitachi
New Models
M 12VE M 12SE
3.0 3.0
Graph of usable feeding force vs cutting speed
Hitachi M 12V2
C1
25 (2.5) 30 (3)
20 (2)
2.5 3
Practical working range
Feeding force N (kg)
Present Models
M 12V2 M 12SA2
4.6 4.6
Test conditions
Groove cutting
Workpiece:MDF
Bit used: Straight bit Dia.12 mm
Cutting depth:10mm
35 (3.5)
3.5
-2-
C1 C2
3.6 3.6
40 (4) 45 (4.5)
4 4.5