These micro linear actuators are extremely versatile and reliable, making them suitable for the most demanding industrial, biomedical and scientific applications. Powered by our patented ultrasonic piezo motor.

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Open-loop version (end-to-end motion only): Integrated controller, analog/PWM speed and direction control (and limit switches). Ultra-compact. A break-out board is available for testing.

A diaphragm (or iris or iris diaphragm) is a mechanism in a camera that makes a variable aperture to control the intensity of light that passes through the lens. Along with shutter speed, this is what controls the exposure received by the film or image sensor.

Irislens camera

Xeryon's actuators are slim and stackable. Their cool operation allows them to be stacked against each other without overheating issues, and since there are no magnetic coils present, there is no risk of magnetic interference between the actuators.

The self-locking piezo motor holds the position of the actuator when it is not powered. As a result, energy consumption and heat generation are considerably reduced.

You’re looking at a Xeryon micro linear actuator driven by our Crossfixx™ ultrasonic motor. Our micro actuators offer the precision and size of piezo actuators, without their typical drawbacks.

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Closed-loop version (exact position control): External controller (XD-OEM) + integrated position sensor (= go to any position).  Note: Internal closed-loop controller (integrated in actuator) coming in January 2025. For ultimate compactness.

Actuators with encoder (closed loop): External XD-OEM controller.Multi-axis use through EtherCAT.Actuators without encoder (open loop): Controller integrated in the micro linear actuator

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A diaphragm may take many forms, from very simple devices for "point-and-shoot" film cameras consisting of just two notched pieces of metal, to more complex ones used in higher-quality cameras which have many blades arranged in a circle. This arrangement, also called an iris by comparison to the corresponding structure in the eye[1] creates a nearly-circular aperture whose size can be varied as needed. There may be as few as 2 blades to as many as 24. In cameras with a small number of diaphragm blades, the shape of the aperture itself (e.g. a hexagon) can often be seen in defocused points of light, or in internal reflections. A lens may deliver a more or less pleasing bokeh with large aperture setting, depending on the aperture's position in the specific lens type's optical path and in most cases also depending on the aperture's roundness.

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Xeryon’s micro linear actuators offer a unique combination of high speed, precision, long stroke, and durability in an ultra-compact design, overcoming the limitations of traditional linear actuators where trade-offs have to be made (e.g. stroke length in voice coils, speed in screw-driven actuators & size in linear motors). Xeryon’s actuators are gearless, self-locking, energy-efficient and operate at low voltages. They don’t produce a magnetic field, are back-driveable, and free from drift or play.

To transmit a particular light intensity, the physical diameter of the aperture must scale up with increasing lens focal length. Thus, apertures are expressed by the f-stop scale or "F-ratio" which is the focal length divided by the entrance pupil diameter provided by the diaphragm opening. Some professionals prefer to replace the f-stop scales of their equipment with "T-stop" scales which are saying more about the light transmission of the specific lens' glass whilst f-tops are just calculated from geometrical dimensions of the aperture.

Our Crossfixx™ ultrasonic motor uses vibration to move a ceramic tip in an elliptical pattern at a very high frequency (80 kHz - 180 kHz). Spring-loaded against a ceramic strip on the actuator rod, it generates very small but rapid movements, resulting in high-speed motion and silent operation with a long lifetime.

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The XLA is the fastest actuator of such a small size in the world. It is a real OEM product but a break-out board is available for test setups.

Protocols: USB, RS232, EtherCAT, CANopen, UART, and more (see full communication overview)Software: Windows GUI, LabVIEW GUI, and software libraries.Hardware: Digital I/O

Not small enough? We also design custom actuators for your specific product. Contact us to talk about a custom small actuator design.

Alternatively, multiple driving units can be combined on a single rod, doubling the driving force. Since this is not a standard product, it is best to contact our integration team about this.

Iris apertureexplained

XLA-1XLA-5XLA-10 Driving force (N):1510 Width (mm):5.4 9.111.5 Mass (g):≥ 5.5≥ 51.6≥ 72 Travel range (mm):5 - 14510 - 15015 - 150 XLA series Resolution (µm):10 - 0.1 Max. velocity (mm/s):400 Max. positioning rate (Hz):> 100 Lifetime:> 1000 km / 20.000.000 cycles Stackable in array?Yes. Does not generate a magnetic field. Self-locking?Yes. Holding force = driving force. Example applications:Pick-and-place, dispensing, lens positioning, ...

Xeryon's ultrasonic piezo actuators operate at much higher frequencies (80 - 180 kHz), ensuring silent operation and no unwanted vibrations.

The Xeryon ultrasonic mini linear actuator is a precise and very fast linear piezo actuator driven by our noiseless Crossfixx ultrasonic motor. This allows for high speed motion and precise positioning.

Xeryon’s ultrasonic piezo actuators are much faster, have a much larger stroke, a much (much!) longer lifetime, operate noiselessly, consume less power, and operate at a much lower voltage at the piezo element.

Traditional stick-slip piezo actuators operate at much lower frequencies, typically within the frequency range of small mechanical components. Apart from being in the human audible spectrum, this introduces the risk of the piezo motor making the entire system vibrate, rather than only the motor itself.

- Make a selection - Open-loop (no position feedback) 10 µm (closed loop) 1,25 µm (closed loop) 312 nm (closed loop) 78 nm (closed loop)