High-Resolution Piezomotor Actuators

PDM-ACT

High-Resolution Piezomotor Actuators
In stock
SKU
PDM-ACT
Our piezomotor actuators are compact and provide extremely high-resolution incremental movement, as low as 30nm. One of the key benefits of piezomotor actuation is that the static friction, which is in effect when the piezomotor is not operating, also acts like a locking mechanism. Our PDM peizomotor actuators are available in two travel ranges, 13- and 6.5-mm, and have industry-standard 9.5-mm and 6-mm diameter mounting interfaces allowing them to be drop-in replecements for standard micrometers. They also have either ball-tip or flat-tip options. Another convenient feature of these actuators is that the electrical cable (which is included) is removable from the actuator. Please note that these actuators do not have internal feedback and therefore are open-loop. Vacuum-compatible versions are also available. If your application needs different specifications we can customize our piezomotor actuators to your unique requirements.
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13mm Travel Piezomotor Actuator, 20nm Resolution, 2.9kg load, Flat Tip
PDM-13ACT
0 - 13mm
in stock
€660.00
Travel >13mm (Max. 18mm)
Minimum travel <20nm
Thrust Force 29.4N
(MAX) Travel 1.5mm/min
Weight 0.05kg
Mounting Shank Diameter 9.5mm
Operating Temperture Range 10-30 C
Compatible Controller PDM-ID-02 (Operates Two PDM Actuators)
i
6.5mm Travel Piezomotor Actuator, 30nm Resolution, 1.3kg load, Ball Tip
PDM-6.5ACTR
0 - 6.5mm
in stock
€754.30
Standard Travel >6.5mm
Max. Travel >9mm
Minimum Travel Increment <30nm
Thrust Force 13N
(MAX) Travel 1.5mm/min
Weight 0.02kg
Mounting Shank Diameter 6mm
Tip Ball
Operating Temperture Range 10-30 C
Compatible Controller PDM-ID-02 (Operates Two PDM Actuators)
i
6.5mm Travel Piezomotor Actuator, 30nm Resolution, 1.3kg load, Flat Tip
PDM-6.5ACT
0 - 6.5mm
3-5 days
€754.30
Standard Travel >6.5mm
Max. Travel >9mm
Minimum Travel Increment <30nm
Thrust Force 13N
(MAX) Travel 1.5mm/min
Weight 0.02kg
Mounting Shank Diameter 6mm
Tip Flat
Operating Temperture Range 10-30 C
Compatible Controller PDM-ID-02 (Operates Two PDM Actuators)
i
13mm Travel Piezomotor Actuator, 20nm Resolution, 2.9kg load, Ball Tip
PDM-13ACTR
0 - 13mm
in stock
€660.00
Standard Travel >13mm
Max. Travel >18mm
Minimum Travel Increment <20nm
Thrust Force 29N
(MAX) Travel 1.5mm/min
Weight 0.05kg
Mounting Shank Diameter 9.5mm
Tip Ball
Operating Temperture Range 10-30 C
Compatible Controller PDM-ID-02 (Operates Two PDM Actuators)

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The motion of these actuators relies on the structured, high-speed "vibration" of a piezo stack along with the force difference between the friction of a moving object vs. the friction of a non-moving object. Recall that friction on a non-moving object is higher than moving friction. In the motion process, the piezo is expanded slowly, enabling higher static friction, and this makes the screw rotate in a direction. Then, the piezo is retracted very quickly, for lower static friction such that the screw does not rotate. Applying this process repeatedly at a high rate causes the actuator screw to rotate continuously in a particular direction. Simply reversing the order of the fast and slow piezo expansion/retraction reverses the direction of rotation, allowing the screw to move in the opposite direction.

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