-1-
Equipped with four existing electronic co two most
advanced controls
These products are highly functional electronic disc grinders that provide added value and incorporate a
microcomputer with a new original program loaded in place of a conventional general-purpose IC, four fully
updated control features—(1) constant speed control, (2) soft-start speed control, (3) variable speed control
(on Models G 12VA, G 13VA and G 15VA), and (4) overload protection control—and two new additional
control features—(5) kickback protection control and (6) 0-voltage restart protection control.
1. Constant speed control
The constant speed control feature maintains constant rotation speed during operation to ensure highly
efficient work.
2. Soft-start speed control
The soft-start speed control feature reduces the reactive force generated at motor startup so as to lessen
the load on the operator's hands.
3. Variable speed control (G 12VA, G 13VA and G 15VA only)
The variable speed control feature selects an appropriate rotation speed for different applications to
ensure highly efficient work.
4. Overload protection control
The overload protection feature shuts off power to the motor in the event of motor overload or a
conspicuous reduction in rotation speed during operation. This feature thus reduces the risk of motor
burnout and controller failure.
5. Kickback protection control
The kickback protection feature cuts off power to the motor and stops the power tool in the event of a
sudden drop in wheel rotation speed during operation (e.g., wheel locking during cutting operation). This
feature thus lessens the load on the operator's hands.
6. 0-voltage restart protection control
The 0-voltage restart protection feature disables motor startup even with the main switch on when the
power cord is reconnected to the power outlet after being unplugged during operation or when the power
supply is recovered from power failure. This feature thus minimizes accidents due to motor restart.
Equipped with most powerful motor in its class
These products are equipped with a high-performance, powerful motor featuring the highest input and
output in its class to enable highly efficient work.
Maker
HITACHI
Model
G 12VA, G 13VA, G 13YF,
G 15VA and G 15YF
B1, B2
C1, C2, C3
Power input
1500W
1400W
1400W
Max power output
2800W
2100W
2650W
Excellent overload durability (G 13VA)
The Model G 13VA provides the highest overload durability in its class (1.2 times higher than that of B1)
thanks to an improved cooling mechanism and a high-power motor.
116
100
123
0
50
100
150
SELLING POINT DESCRIPTIONS
G 13VA
B1
C2
Practical test data: Comparison of torque at 200-K rise in stator coil temperature
