Voice coil actuators (VCA) are single phase linear brushless DC motors that do not require commutation, making it a very reliable electric motor.
They allow for easily controllable movement, suitable for high-end industrial equipment and high duty cycle applications.
Linear DC Voice coil actuators can simultaneously achieve high precision, fast acceleration and high speed over a defined stroke. Making it the ideal motor for engineers who want precise, repeatable and controllable linear motion for their applications.
Fast
acceleration
Reliable and
durable
Precise
movement
Cost optimized
solution
THE TECHNOLOGY
Voice Coil Actuators consist of 2 main components, the coil assembly and the magnetic mass. By applying a voltage across the 2-wire connection of the actuator it will move in one direction. Consequently, reversing the polarity of the applied voltage will move the actuator in the opposite direction. Moreover, the generated force is proportional to the current that flows through the coil. This force is almost constant in the specified stroke range of the actuator
MOVING MAGNET LINEAR VOICE COIL ACTUATOR
There are two main types of voice coil actuators, moving magnet actuators and moving coil actuators. As the name implies, for moving magnet actuators the coil is fixated and the magnet moves. As for the moving coil actuator the magnet core is fixed and the coil moves. Magnetic Innovations specializes in moving magnet actuators. Compared to the other actuator, the moving magnet actuator is easy to cool. This prevents the coil from overheating, giving it much higher force density.
LINEAR MOVING MAGNET VOICE COIL ACTUATOR: RELIABLE AND DURABLE
A key advantage of a moving magnet voice coil actuator is that they are very reliable and durable. This is, in comparison to moving coil Actuators, due to the lack of moving wires. Compared to other electric actuators motors with gearboxes, they can accelerate quickly and then come to a gentle stop at a very precise point. In addition, the moving magnet voice coil actuators are compact and have zero mechanical wear, no backlash and very low zeromechanical friction.
DETAILS MMA SERIE
The most cost effective type of actuators is our frameless voice coil actuator (MMA SERIES).
Frameless means that the bearing is not provided with the actuator. This allows engineers to optimise their design and embed the motor in a way that is best suited for their application. These actuators are also applicable in applications in a vacuum environment. With a frameless voice coil actuator you can count on a motor with high speed, high force density, high reliability and a long lifetime.
| Parameters | Unit | 1525 | 1555 | 3070 | 5536 | 9054 | 240-380 |
| OD 1 | mm | 15 | 15 | 30 | 55 | 90 | 240 |
| Height 1 | mm | 25 | 55 | 70 | 36 | 54 | 380 |
| Stroke 1 | mm | 5 | 18 | 25 | 8 | 12 | 36 |
| F continuous middle position | N | 2.6 2 | 2.6 2 | 16.6 2 | 39 2 | 140 2 | 2909 4 |
| F peak | N | 6.2 3 | 6.2 3 | 60 3 | 131 3 | 605 3 | 11151 5 |
| Maximum operating Voltage | Vdc | 48 | 48 | 48 | 48 | 48 | 400 |
| Moving mass | Kg | 0.0063 | 0.0175 | 0.090 | 0.175 | 0.700 | 51.5 |
1 Standard range. Other dimensions and force ranges are available upon request / 2 Continuous force at 40°C ambient and 120°C coil temperature / 3 Peak force for 5 sec. at 25°C ambient and 120 °C coil temperature / 4 Continuous force at 20°C ambient and max 110°C coil temperature / 5 Peak force for 5 sec. at 20°C ambient and max 110 °C coil temperature
DETAILS MMB SERIE
The MMB Series consist out of our most complete actuator, it comes with an integrated bearing systems.
With this voice coil actuator engineers are not required to add their own alignment system. This can make it easier to integrate the motor into their application. The voice coil actuator can support high positioning resolutions -in combination with external position sensors and motion controllers. They enable reduced system cost, control complexity and improve robustness
| Parameters | Unit | 1525 | 1555 | 3070 | 4090 | 5536 | 9054 |
| OD 1 | mm | 15 | 15 | 30 | 40 | 55 | 90 |
| Height 1 | mm | 25 | 55 | 70 | 90 | 36 | 54 |
| Stroke 1 | mm | 5 | 18 | 25 | 35 | 8 | 12 |
| F continuous middle position 2 | N | 2 | 2 | 13 | 29.7 | 31 | 110 |
| F peak 3 | N | 6 | 6 | 60 | 123 | 131 | 605 |
| Maximum operating Voltage | Vdc | 48 | 48 | 48 | 48 | 48 | 48 |
| Moving mass | Kg | 0.0063 | 0.0175 | 0.090 | 0.2557 | 0.175 | 0.700 |
1 Standard range. Other dimensions and force ranges are available upon request. / 2 Continuous force at 40°C ambient and 90°C coil temperature /3 Peak force for 10 sec. at 25°C ambient and max. 90°C coil temperature
MOVING MAGNET VCA CONTROLLER (MMB SERIES)
Magnetic Innovations’ Moving Magnet VCA MMB series are matched with a dedicated motor controller which is able to establish sensorless position control (no external encoder required). Hence only 2 wires are required to power and position control the actuator. The controller is an encoder and drive in one package at the size of a matchbox which can power Moving Magnet VCA’s up to 1kW.
Our support team
Saïd Lafkiri
Sales Engineer
Priscilla Jagroep
Marketing and Sales
Cor van den Heuvel
Director Sales & Marketing