Linear DC Motors, Voice Coil Motors (VCM) or Voice Coil Actuators (VCA) are the simplest type of electric motors. These motors consist of two separate parts; the magnetic housing and the coil.

Applying a voltage across the terminals of the motor causes the motor to move to one direction. Reversing the polarity of the applied voltage will move the motor to the opposite direction. The generated force is proportional to the current that flows through the motor coil. This force is almost constant in the specified stroke range of the motor.

Voice coil motors do not need commutation and using a position sensor, positioning accuracies of less than one micron or 0.00004 inches are achievable.

The non-commutated motor construction increases reliability. The direct coupling of the motor to the load allows for fast acceleration / deceleration and high speed operation.

Very high speeds and accelerations can be easily achieved.

The moving part needs to be supported by a mechanism supplied by the customer.

Comparison Table

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Housing Outside Diameter, 0.500 inch, 12.7 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-013-013-02	0.25	inch	3.1	oz	9.8	oz	0.500	inch
data sheet in PDF	6.4	mm	0.86	N	2.73	N	12.7	mm
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Comparison Table

Housing Outside Diameter, 0.500 inch, 12.7 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-013-019-02	0.50	inch	2.9	oz	9.2	oz	0.750	inch
data sheet in PDF	12.7	mm	0.81	N	2.55	N	19.1	mm
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Comparison Table

Housing Outside Diameter, 0.500 inch, 12.7 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-013-025-02	0.75	inch	2.9	oz	9.0	oz	1.000	inch
data sheet in PDF	19.1	mm	0.79	N	2.51	N	25.4	mm
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Comparison Table

Housing Outside Diameter, 0.500 inch, 12.7 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-013-032-02	1.00	inch	2.5	oz	7.9	oz	1.250	inch
data sheet in PDF	25.4	mm	0.70	N	2.20	N	31.8	mm
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Comparison Table

Housing Outside Diameter, 0.500 inch, 12.7 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-013-044-02	1.50	inch	2.5	oz	8.0	oz	1.750	inch
data sheet in PDF	38.1	mm	0.71	N	2.23	N	44.5	mm
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Comparison Table

Housing Outside Diameter, 0.750 inch, 19.1 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-019-016-02	0.25	inch	8.9	oz	28.0	oz	0.875	inch
data sheet in PDF	6.4	mm	2.5	N	7.8	N	22.2	mm
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Comparison Table

Housing Outside Diameter, 0.750 inch, 19.1 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-019-022-02	0.5	inch	8.1	oz	25.7	oz	0.875	inch
data sheet in PDF	12.7	mm	2.3	N	7.1	N	22.2	mm
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Comparison Table

Housing Outside Diameter, 0.750 inch, 19.1 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-019-048-02	1.5	inch	7.4	oz	23.5	oz	1.875	inch
data sheet in PDF	38.1	mm	2.1	N	6.5	N	47.6	mm
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Comparison Table

Housing Outside Diameter, 1.000 inch, 25.4 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-025-022-01	0.38	inch	16.9	oz	53.5	oz	0.875	inch
data sheet in PDF	9.5	mm	4.7	N	14.9	N	22.2	mm
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Comparison Table

Housing Outside Diameter, 1.000 inch, 25.4 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-025-029-01	0.63	inch	18.2	oz	57.7	oz	1.125	inch
data sheet in PDF	15.9	mm	5.1	N	16.0	N	28.6	mm
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Comparison Table

Housing Outside Diameter, 1.000 inch, 25.4 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-025-038-02	1.00	inch	16.4	oz	51.9	oz	1.50	inch
data sheet in PDF	25.4	mm	4.6	N	14.4	N	38.1	mm
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Comparison Table

Housing Outside Diameter, 1.250 inch, 31.8 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-032-025-02	0.50	inch	1.5	lb	4.5	lb	1.00	inch
data sheet in PDF	12.7	mm	6.7	N	20.1	N	25.4	mm
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Comparison Table

Housing Outside Diameter, 1.250 inch, 31.8 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-032-038-02	1.00	inch	1.9	lb	5.9	lb	1.50	inch
data sheet in PDF	25.4	mm	8.3	N	26.1	N	28.6	mm
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Comparison Table

Housing Outside Diameter, 1.500 inch, 38.1 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-038-038-01	0.75	inch	3.0	lb	9.5	lb	1.50	inch
data sheet in PDF	19.1	mm	13.4	N	42.5	N	38.1	mm
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Comparison Table

Housing Outside Diameter, 1.750 inch, 44.4 mm
Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
LVCM-044-032-02	0.50	inch	5.0	lb	15.8	lb	1.25	inch
data sheet in PDF	12.7	mm	22.2	N	70.4	N	31.8	mm
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Comparison Table

Housing Outside Diameter, 1.750 inch, 44.4 mm Model # Stroke   Continuous Force   Intermittent Force @ 10% Duty Cycle   Housing Length   LVCM-044-051-01 1.25 inch 4.9 lb 15.4 lb 2.00 inch data sheet in PDF 31.8 mm 21.6 N 68.4 N 50.8 mm Buy Online   Comparison Table Housing Outside Diameter, 1.750 inch, 44.4 mm Model # Stroke   Continuous Force   Intermittent Force @ 10% Duty Cycle   Housing Length   LVCM-044-051-02 1.25 inch 5.0 lb 15.8 lb 2.00 inch data sheet in PDF 31.8 mm 22.3 N 70.4 N 50.8 mm Buy Online   Comparison Table Housing Outside Diameter, 2.000 inch, 50.8 mm Model # Stroke   Continuous Force   Intermittent Force @ 10% Duty Cycle   Housing Length   LVCM-051-025-01 0.50 inch 5.3 lb 16.9 lb 1.00 inch data sheet in PDF 12.7 mm 23.7 N 74.8 N 25.4 mm Buy Online   Comparison Table Housing Outside Diameter, 2.000 inch, 50.8 mm Model # Stroke   Continuous Force   Intermittent Force @ 10% Duty Cycle   Housing Length   LVCM-051-032-01 0.75 inch 6.3 lb 20.0 lb 1.25 inch data sheet in PDF 19.1 mm 28.2 N 89.9 N 31.8 mm Buy Online   Comparison Table Housing Outside Diameter, 2.000 inch, 50.8 mm Model # Stroke   Continuous Force   Intermittent Force @ 10% Duty Cycle   Housing Length   LVCM-051-051-01 0.75 inch 6.3 lb 19.9 lb 2.00 inch data sheet in PDF 19.1 mm 28.0 N 88.6 N 50.8 mm Buy Online   Comparison Table Housing Outside Diameter, 2.000 inch, 50.8 mm Model # Stroke   Continuous Force   Intermittent Force @ 10% Duty Cycle   Housing Length   LVCM-051-064-01 1.25 inch 6.6 lb 20.9 lb 2.50 inch data sheet in PDF 31.8 mm 29.4 N 92.9 N 63.5 mm Buy Online   Comparison Table Housing Outside Diameter, 2.000 inch, 50.8 mm Model # Stroke   Continuous Force   Intermittent Force @ 10% Duty Cycle   Housing Length   LVCM-051-089-01 2.25 inch 5.9 lb 18.6 lb 3.50 inch data sheet in PDF 57.2 mm 26.2 N 82.7 N 88.9 mm Buy Online   Comparison Table Housing Outside Diameter, 2.000 inch, 50.8 mm Model # Stroke   Continuous Force   Intermittent Force @ 10% Duty Cycle   Housing Length   LVCM-051-165-01 5.25 inch 4.8 lb 15.3 lb 6.50 inch data sheet in PDF 133.4 mm 21.5 N 68.1 N 165.1 mm Buy Online     Comparison Table Housing Outside Diameter, 2.750 inch, 69.9 mm   Model # Stroke   Continuous Force   Intermittent Force @ 10% Duty Cycle   Housing Length   LVCM-070-038-01 0.50 inch 14.5 lb 45.9 lb 1.50 inch data sheet in PDF 12.7 mm 64.6 N 204.4 N 28.6 mm Buy Online   Comparison Table Housing Outside Diameter, 2.750 inch, 69.9 mm   Model # Stroke   Continuous Force   Intermittent Force @ 10% Duty Cycle   Housing Length   LVCM-070-051-01 1.00 inch 14.6 lb 46.0 lb 2.00 inch data sheet in PDF 25.4 mm 64.7 N 204.3 N 50.8 mm Buy Online   Comparison Table Housing Outside Diameter, 2.750 inch, 69.9 mm   Model # Stroke   Continuous Force   Intermittent Force @ 10% Duty Cycle   Housing Length   LVCM-070-064-01 1.50 inch 14.4 lb 45.5 lb 2.50 inch data sheet in PDF 38.2 mm 64.0 N 202.0 N 63.5 mm Buy Online   Comparison Table Housing Outside Diameter, 3.750 inch, 95.3 mm   Model # Stroke   Continuous Force   Intermittent Force @ 10% Duty Cycle   Housing Length   LVCM-095-038-01 0.50 inch 23.1 lb 73.1 lb 1.50 inch data sheet in PDF 12.7 mm 102.7 N 324.4 N 28.6 mm Buy Online   Comparison Table Housing Outside Diameter, 3.750 inch, 95.3 mm Model # Stroke   Continuous Force   Intermittent Force @ 10% Duty Cycle   Housing Length   LVCM-095-051-01 1.00 inch 23.4 lb 70.0 lb 2.0 inch data sheet in PDF 25.4 mm 104.0 N 328.7 N 50.8 mm Buy Online   Comparison Table Housing Outside Diameter, 3.750 inch, 95.3 mm Model # Stroke   Continuous Force   Intermittent Force @ 10% Duty Cycle   Housing Length   LVCM-095-064-01 1.50 inch 24.4 lb 77.1 lb 2.50 inch data sheet in PDF 38.2 mm 108.2 N 342.0 N 63.5 mm Buy Online      Linear DC Motors Comparison Table Model # Stroke   Continuous Force     Intermittent Force @ 10% Duty Cycle   Force Constant      Coil Mass     Body Mass     Housing Outside Diameter   Housing Length     LVCM-010-013-01 0.25 inch 1.0 oz 3.2 oz 1.0 oz/A 0.09 oz 0.13 oz 0.375 inch 0.500 inch data sheet in PDF 6.4 mm 0.28 N 0.88 N 0.29 N/A 2.5 gr 3.8 gr 9.5 mm 12.7 mm   LVCM-013-013-02 0.25 inch 3.1 oz 9.8 oz 2.5 oz/A 0.19 oz 0.27 oz 0.500 inch 0.500 inch data sheet in PDF 6.4 mm 0.86 N 2.73 N 0.69 N/A 5.4 gr 7.6 gr 12.7 mm 12.7 mm   LVCM-013-019-02 0.50 inch 2.9 oz 9.2 oz 2.8 oz/A 0.23 oz 0.37 oz 0.500 inch 0.750 inch data sheet in PDF 12.7 mm 0.81 N 2.55 N 0.77 N/A 6.4 gr 10.6 gr 12.7 mm 19.1 mm   LVCM-013-025-02 0.75 inch 2.9 oz 9.0 oz 2.9 oz/A 0.32 oz 0.49 oz 0.500 inch 1.000 inch data sheet in PDF 19.1 mm 0.79 N 2.51 N 0.80 N/A 9.0 gr 13.8 gr 12.7 mm 25.4 mm   LVCM-013-032-02 1.00 inch 2.5 oz 7.9 oz 2.7 oz/A 0.38 oz 0.60 oz 0.500 inch 1.250 inch data sheet in PDF 25.4 mm 0.70 N 2.20 N 0.76 N/A 10.8 gr 17 gr 12.7 mm 31.8 mm   LVCM-013-044-02 1.50 inch 2.5 oz 8.0 oz 3.0 oz/A 0.52 oz 0.88 oz 0.500 inch 1.750 inch data sheet in PDF 38.1 mm 0.71 N 2.23 N 0.84 N/A 14.6 gr 25 gr 12.7 mm 44.5 mm   LVCM-019-016-02 0.25 inch 8.9 oz 28.0 oz 5.28 oz/A 0.28 oz 0.9 oz 0.750 inch 0.875 inch data sheet in PDF 6.4 mm 2.5 N 7.8 N 1.5 N/A 8 gr 26 gr 19.1 mm 22.2 mm   LVCM-019-022-02 0.5 inch 8.1 oz 25.7 oz 5.74 oz/A 0.39 oz 1.3 oz 0.750 inch 0.875 inch data sheet in PDF 12.7 mm 2.3 N 7.1 N 1.6 N/A 11 gr 36 gr 19.1 mm 22.2 mm   LVCM-019-048-02 1.5 inch 7.4 oz 23.5 oz 7.06 oz/A 0.71 oz 2.6 oz 0.750 inch 1.875 inch data sheet in PDF 38.1 mm 2.1 N 6.5 N 2.0 N/A 20 gr 73 gr 19.1 mm 47.6 mm   LVCM-025-022-01 0.38 inch 16.9 oz 53.5 oz 11.1 oz/A 0.71 oz 2.2 oz 1.000 inch 0.875 inch data sheet in PDF 9.5 mm 4.7 N 14.9 N 3.1 N/A 20 gr 62 gr 25.4 mm 22.2 mm   LVCM-025-029-01 0.63 inch 18.2 oz 57.7 oz 13.5 oz/A 0.95 oz 2.8 oz 1.000 inch 1.125 inch data sheet in PDF 15.9 mm 5.1 N 16.0 N 3.75 N/A 27 gr 78 gr 25.4 mm 28.6 mm   LVCM-025-038-02 1.00 inch 16.4 oz 51.9 oz 0.88 lb/A 1.22 oz 3.6 oz 1.000 inch 1.50 inch data sheet in PDF 25.4 mm 4.6 N 14.4 N 3.9 N/A 35 gr 102 gr 25.4 mm 38.1 mm   LVCM-032-025-02 0.50 inch 1.5 lb 4.5 lb 0.88 lb/A 0.99 oz 4.5 oz 1.250 inch 1.00 inch data sheet in PDF 12.7 mm 6.7 N 20.1 N 3.9 N/A 28 gr 127 gr 31.8 mm 25.4 mm   LVCM-032-038-02 1.00 inch 1.9 lb 5.9 lb 0.94 lb/A 1.34 oz 6.5 oz 1.250 inch 1.50 inch data sheet in PDF 25.4 mm 8.3 N 26.1 N 4.2 N/A 38 gr 184 gr 31.8 mm 28.6 mm   LVCM-038-038-01 0.75 inch 3.0 lb 9.5 lb 2.3 lb/A 1.90 oz 9.5 oz 1.500 inch 1.50 inch data sheet in PDF 19.1 mm 13.4 N 42.5 N 10.1 N/A 54 gr 270 gr 38.1 mm 38.1 mm   LVCM-044-032-02 0.50 inch 5.0 lb 15.8 lb 2.8 lb/A 2.3 oz 11.3 oz 1.750 inch 1.25 inch data sheet in PDF 12.7 mm 22.2 N 70.4 N 12.3 N/A 64 gr 320 gr 44.5 mm 31.8 mm   LVCM-044-051-01 1.25 inch 4.9 lb 15.4 lb 2.3 lb/A 5.8 oz 14.3 oz 1.750 inch 2.00 inch data sheet in PDF 31.8 mm 21.6 N 68.4 N 10.3 N/A 165 gr 405 gr 44.5 mm 50.8 mm   LVCM-044-051-02 1.25 inch 5.0 lb 15.8 lb 1.6 lb/A 3.2 oz 17.5 oz 1.750 inch 2.00 inch data sheet in PDF 31.8 mm 22.3 N 70.4 N 6.9 N/A 90 gr 497 gr 44.5 mm 50.8 mm   LVCM-051-025-01 0.50 inch 5.3 lb 16.9 lb 1.6 lb/A 3.2 oz 11.5 oz 2.000 inch 1.00 inch data sheet in PDF 12.7 mm 23.7 N 74.8 N 6.9 N/A 92 gr 326 gr 50.8 mm 25.4 mm   LVCM-051-032-01 0.75 inch 6.3 lb 20.0 lb 1.9 lb/A 3.6 oz 14.4 oz 2.000 inch 1.25 inch data sheet in PDF 19.1 mm 28.2 N 89.9 N 8.4 N/A 103 gr 409 gr 50.8 mm 31.8 mm   LVCM-051-051-01 0.75 inch 6.3 lb 19.9 lb 1.8 lb/A 4.23 oz 24.2 oz 2.000 inch 2.00 inch data sheet in PDF 19.1 mm 28.0 N 88.6 N 8.0 N/A 120 gr 685 gr 50.8 mm 50.8 mm   LVCM-051-064-01 1.25 inch 6.6 lb 20.9 lb 2.2 lb/A 5.3 oz 30.0 oz 2.000 inch 2.50 inch data sheet in PDF 31.8 mm 29.4 N 92.9 N 9.6 N/A 150 gr 850 gr 50.8 mm 63.5 mm   LVCM-051-089-01 2.25 inch 5.9 lb 18.6 lb 2.3 lb/A 6.9 oz 40.7 oz 2.000 inch 3.50 inch data sheet in PDF 57.2 mm 26.2 N 82.7 N 10.1 N/A 195 gr 1155 gr 50.8 mm 88.9 mm   LVCM-051-165-01 5.25 inch 4.8 lb 15.3 lb 2.4 lb/A 12.0 oz 74.0 oz 2.000 inch 6.50 inch data sheet in PDF 133.4 mm 21.5 N 68.1 N 10.6 N/A 340 gr 2100 gr 50.8 mm 165.1 mm   LVCM-070-038-01 0.50 inch 14.5 lb 45.9 lb 4.7 lb/A 0.42 oz 2.1 lb 2.750 inch 1.50 inch data sheet in PDF 12.7 mm 64.6 N 204.4 N 21.2 N/A 192 gr 0.95 kg 69.9 mm 28.6 mm   LVCM-070-051-01 1.00 inch 14.6 lb 46.0 lb 5.5 lb/A 0.53 oz 2.74 oz 2.750 inch 2.00 inch data sheet in PDF 25.4 mm 64.7 N 204.3 N 24.4 N/A 240 gr 1.24 kg 69.9 mm 50.8 mm   LVCM-070-064-01 1.50 inch 14.4 lb 45.5 lb 2.5 lb/A 0.67 oz 3.37 lb 2.750 inch 2.50 inch data sheet in PDF 38.2 mm 64.0 N 202.0 N 11.0 N/A 305 gr 1.53 kg 69.9 mm 63.5 mm   LVCM-095-038-01 0.50 inch 23.1 lb 73.1 lb 8.5 lb/A 0.72 oz 4.07 lb 3.750 inch 1.50 inch data sheet in PDF 12.7 mm 102.7 N 324.4 N 38.0 N/A 326 gr 1.85 kg 95.3 mm 28.6 mm   LVCM-095-051-01 1.00 inch 23.4 lb 70.0 lb 10.1 lb/A 0.87 oz 5.34 lb 3.750 inch 2.0 inch data sheet in PDF 25.4 mm 104.0 N 328.7 N 44.8 N/A 395 gr 2.42 kg 95.3 mm 50.8 mm   LVCM-095-064-01 1.50 inch 24.4 lb 77.1 lb 4.8 lb/A 1.07 lb 6.61 lb 3.750 inch 2.50 inch data sheet in PDF 38.2 mm 108.2 N 342.0 N 21.1 N/A 484 gr 3.00 kg 95.3 mm 63.5 mm Linear DC Motors Catalog in PDF \ The intermittent force at 10% duty cycle is equal to 3.16 times the continuous force. 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