Voice Coil Motors

Voice Coil Motors are advanced moving-coil actuators that provide outstanding controllability, exceptional efficiency and a long life cycle, all with very low hysteresis.

Selecting a Voice Coil Motor

Voice Coil Motors

Geeplus Voice Coil Motor Coil Calculator

Click on the icon above to access our handy “Coil Calculator” tool!

The VM series of Voice Coils Motors from Geeplus addresses applications where excellent control for short stroke, bidirectional linear actuation is required–in medical or optical equipment, for example.

Engineers can use our handy Coil Calculator tool to compare performance and get a “ballpark” idea of which product will work best within a particular application. It may also be a good idea to check out our technical document on Voice Coil Motor Parameters to help you understand these high-precision parts a little better.

Control, Precision and Negligible Hysteresis

Voice Coil Actuators can develop force in either direction by reversing polarity of excitation. A very important characteristic of voice coils is extremely low hysteresis; typically two orders of magnitude less than in proportional solenoids. This, along with the flat force exhibited by voice coil actuators, lend these devices to applications requiring precise control of force and/or position (such as control valves, or lens and mirror positioning systems).

The VM series of Voice Coil Motors are designed as actuator components with incorporated shafts and sliding bearings as standard, to ensure accurate guidance of the moving coil within the magnet assembly. Position sensors are not included.

Geeplus also designs and manufactures completely customized versions in a variety of sizes and even form factors (including short stroke, U-shape, ironless motors as well rotary voice coil versions). In most applications, the coil is the moving part. Our Voice Coil Actuators can also be shipped without shaft and bearing.

Ventilator machine and patient

Benefits of our Voice Coil Actuators:

• Proportional Control: Variable position 1 to 100mm / up to 45°
• High Speed: Vibration or marking
• High Efficiency: Battery powered systems, backup systems, temperature sensitive media
• Controllability: Linear or rotary movement with low noise or low shock at mechanical endstop
• Low Hysteresis: Control systems with high repeatability

Model	Force Cont. / Peak	Stroke Overall / Linear	Cont. Power	Weight Overall / Coil	Dimensions d x h	Data Sheet	3D Drawing
	N	mm	W	g	mm	.PDF	.IGS
VM1614	0.8 / 2	5 / 4	5	15 / 3	16 x 14
VM2436	2.7 / 7.5	20 / ?	12.5	95 / 9	24 x 36
VM2618	3.6 / 10	8 / 4	10	60 / 6	26 x 18
VM2836	3.6 / 10	8 / 4	10	60 / 6	28 x 36
VM3322	5.0 / 14	6 / 4	8	140 / 9	33 x 22
VM3334	5.0 / 14	6 / 4	8	140 / 9	33 x 34
VM3850RB	7.5 / 24	8 / 4	7.4	225 / 17	38 x 51
VM4032	10 / 27	12 / 9	12	230 / 25	40 x 31
VM4040	10 / 27	12 / 9	12	230 / 25	40 x 40
VM5042	21 / 55	8 / 7	24	480 / 35	50 x 42
VM5050	21 / 55	8 / 7	24	480 / 35	50 x 50
VM6340	33 / 100	8 /	24	750 / 40	63.1 x 38
VM6340L	32/116	12 /	28	750/43	63.1 x 38
VM6360	101/30	18	24	750/32	63.1 x 60
VM6360L	104/29	18	28	750/43	63.1 x 60
VM6548	24 / 78	20 / 13	28	950 / 90	65 x 48
VM75P2	48/194	14	42	1700/160	75 x 72.5
VM78P4
VM8054	45 /140	32 / 15	50	1,700 / 150	80 x 54
VM8080	45 /140	32 / 15	50	1,700 / 150	80 x 80
VMXY80
VM102P2	200 / 700	12 / 10	105	4,200 / 325	102 x 80
VM108-2P30	230 / 700	40 / 30	108	8,000 / 750	108 x 125