The voice coil actuator is a non-commutated, two terminal limited motion device. It has linear control
characteristics, zero hysteresis, zero cogging and infinite position sensitivity. It has low electrical and
mechanical time constants and a high output power to weight and volume ratio. It is nearly an ideal
servomechanism. It is applications, including.
Linear pumps, compressors
Optical pointing, scanning, aiming, tracking, focusing, boresighting, beam steering and beam stabilization
Medical diagnostic, therapeutic and surgical devices
Semiconductor fabrication, inspection and packaging

Linear Actuators
LA05-
05
-000A
LA08-
10
-000A
LA09-
10
-000A
LA09-
13
-000A
LA10-
08
-000A
LA10-
12
-000A
LA10-
12
-027A
LA12-
12
-000A
Peak Force,
10sec
(oz)
2.5
24
8
20.0
24
40
48
36
(lb)
1.5
2.5
3.0
2.25
Continuous
Stall Force
(oz)
1.35
6.5
2.6
7.0
9.7
19.2
16.7
17.2
(lb)
0.61
1.2
1.04
1.08
Actuator Constant
+
1.25
3.1
1.9
3.8
4.13
6.72
6.03
5.6
+
(lb/watt)
0.26
0.42
0.38
0.35
Electrical Time
Constant
7.0
92
330
172
125
22
245
43.5
Mechanical Time
Constant
(milli-sec)
8.9
100.1
13.6
6.7
5.3
3.2
4.9
2.7
Stroke, +/-
(ln)
0.020
0.080
0.040
0.060
0.100
0.030
0.180
0.125
Clearance Each
Side of Coll
(ln)
0.015
0.015
0.027
0.025
0.035
0.028
0.015
0.010
Max Allow Temp
of Coll
(deg C)
155
155
155
155
155
155
155
155
Weight of Coll
Assembly
(oz)
0.032
0.265
0.13
0.27
0.247
0.35
0.49
0.23
Weight of Field
Assembly
(oz)
0.30
0.95
0.73
1.63
1.16
2.85
2.0
3.47
DC Resistance
(ohms+/-12%)
4.0
1.2
3.5
12.4
9.9
1.8
11.0
0.65
Force Sensitivity
@ midstroke
(oz/amp)
2.5
3.4
3.5
13.5
13.0
8.5
20.0
4.5
(lb/amp)
0.81
0.53
1.25
0.28
Back EMF
Constant
(volts/(ft/sec))
0.212
0.29
0.30
1.14
1.10
0.72
1.70
0.38
Actuator
Type
C
C
R
R
C
C
C
C
 
Linear Actuators
LA12-
17
- 000A
LA13-
12
-000A
LA13-
30
-000A
LA14-
15
-000A
LA14-
17
-000A
LA15-
15
-001A
LA15-
16
-020A
LA15-
16
-024A
Peak Force,
10sec
(oz)
(lb)
10.0
3.5
3.0
6.5
5.0
10.0
7.6
20.0
Continuous
Stall Force
(oz)
(lb)
3.5
1.6
1.14
2.63
1.6
3.7
2.6
5.5
Actuator Constant
+
+
(lb/watt)
0.99
0.53
0.35
0.63
0.49
0.98
0.62
1.31
Electrical Time
Constant
125
164
650
 60
165
100
318
270
Mechanical Time
Constant
(milli-sec)
1.7
2.5
8.2
2.4
4.3
1.2
2.1
1.3
Stroke, +/-
(ln)
0.150
0.125
0.700
0.090
0.200
0.040
0.200
0.125
Clearance Each
Side of Coll
(ln)
0.015
0.015
0.020
0.020
0.035
0.015
0.020
0.018
Max Allow Temp
of Coll
(deg C)
155
155
155
155
155
155
155
Weight of Coll
Assembly
(oz)
1.15
0.50
0.70
0.67
0.72
0.81
0.88
1.55
Weight of Field
Assembly
(oz)
4.7
3.6
14.7
7.3
6.4
8.82
6.9
6.5
DC Resistance
(ohms+/-12%)
2.8
17.1
4.6
4.2
6.5
1.9
4.4
4.7
Force Sensitivity
@ midstroke
(oz/amp)
(lb/amp)
1.65
2.20
0.75
1.30
1.25
1.35
1.30
2.85
Back EMF
Constant
(volts/(ft/sec))
2.24
2.98
1.02
1.76
1.7
1.83
1.76
3.86
Actuator
Type
C
C
R
C
C
C
C
C
 
Linear Actuators
LA16-
19
-001A*
LA18-
12
-000A
LA18-
18
-000A
Peak Force,
10sec
(oz)
(lb)
5.0
10.0
10.0
Continuous
Stall Force
(oz)
(lb)
2.1
3.4
3.1
Actuator Constant
+
+
(lb/watt)
0.52
1.09
0.99
Electrical Time
Constant
356
385
385
Mechanical Time
Constant
(milli-sec)
19.2
1.9
2.4
Stroke, +/-
(ln)
0.250
0.120
0.120
Clearance Each
Side of Coll
(ln)
0.015
0.015
0.015
Max Allow Temp
of Coll
(deg C)
155
155
155
Weight of Coll
Assembly
(oz)
4.4
1.54
1.66
Weight of Field
Assembly
(oz)
3.6
6.2
6.2
DC Resistance
(ohms+/-12%)
7.3
2.6
2.6
Force Sensitivity
@ midstroke
(oz/amp)
(lb/amp)
1.40
1.75
1.60
Back EMF
Constant
(volts/(ft/sec))
1.90
2.37
2.17
Actuator
Type
C*
C
C
 

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