Standard Actuators · Sonic Actuators
Sonic Actuator brochure
There are some common specifications among each of ETREMA's Terfenol-D based Sonic Actuators.
One such characteristic is the standard operating frequency range, which is 0-1250 Hz.
A high frequency version, which covers the range 0-2500 Hz is available for models 050, 100,
and 150. The remaining common specifications are:
|Dynamic Force, lb (N)
|Blocked Force, lb (N)
|Operating Temperature Range, °F (°C)
||-4 to 212 (-20 to 100)
|Max. Continuous AC Current, Arms
Unique specifications to each model are as follows:
||Max. Stroke (DC), µm
||Resistance (DC), Ω
Each ETREMA actuator has options to help suit our customers' needs. Below is an
example of a typical actuator order configuration, with the available options shown.
An envelope drawing of the standard actuators is shown in Figure 1 below. There are two ways
by which they can be mechanically coupled to a system: via the male output rod at the top of
the actuator, and via the female threaded interface at the bottom of the actuator.
Both interfaces come standard with 3/8-24 UNF threads or metric threads.
The electrical interface is customer-specified to be located either at the bottom of the
device (in the axial direction of the actuator), or at the side. Electrical connection is
accomplished via a supplied cable with a locking, splash-proof LEMO connector.
The actuator can also be ordered either as a sealed or air-cooled version. The location of
the 1/8-27 NPT air connection is the same as the chosen location for the electrical
Figure 1. Envelope drawing for standard actuators
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