1-5 Motor shaft brake
25
1
2
3
4
5
6
7
8
9
10
11
付
Ou
tlin
e
1-5
Motor shaft brake
The brake is used to hold the motor shaft in place when the power is turned off. With smaller sizes (SHA25A, 32A), the
actuator's built-in circuit controls the voltage supplied to the brake in order to reduce the power consumption while the brake is
actuated.
Be sure to use a DC power supply having proper brake excitation voltage and capable of outputting enough current for the
brake actuation (release).
Specifications
SG/HP
type
Model
Item
SHA20A
51
81
101
121
161
Type
Dry non-excitation actuation type (without power-
saving control)
Brake excitation
voltage
V
DC24V ± 10% (no polarity)
*1
Current
consumption
during suction
(at 20
℃
)
A
rms
0.37
Current
consumption
during holding
(at 20
℃
)
A
rms
Same as current consumption during suction
Holding torque
*3
Nm
31
49
61
73
97
kgf·m
3.1
5.0
6.2
7.4
9.9
Inertia moment
*3
(Actuator total)
(with brake)
(GD
2
/4)
kg·m
2
0.26
0.65
1.0
1.4
2.6
(J)
kgf·cm·s
2
2.7
6.6
10
15
26
Mass
(with brake)
*4
kg
2.1
Allowable number
of normal stops
*5
100,000 times
Allowable number
of emergency
stops
*6
200 times
Model
Item
SHA25A
SHA32A
11
51
81
101
121
161
11
51
81
101
121
161
Type
Dry non-excitation actuation type (with power-saving control)
Brake excitation
voltage
V
DC24V ± 10% (no polarity)
*1
Current
consumption
during suction
(at 20
℃
)
A
rms
0.8
*2
0.8
*2
Current
consumption
during holding
(at 20
℃
)
A
rms
0.3
0.3
Holding torque
*3
Nm
11
51
81
101
121
161
22
102
162
202
242
322
kgf·m
1.1
5.2
8.3
10
12
16
2.2
10
17
21
25
33
Inertia moment
*3
(Actuator total)
(with brake)
(GD
2
/4)
kg·m
2
0.034
0.66
1.7
2.6
3.7
6.6
1.7
2.3
5.9
9.2
13
23
(J)
kgf·cm·s
2
0.35
6.7
17
26
38
67
17
24
60
94
135
238
Mass
(with brake)
*4
kg
5.1
3.1
9.7
6.2
Allowable number
of normal stops
*5
100,000 times
Allowable number
of emergency
stops
*6
200 times
