The Release Actuator is used to provide firm restraint for the customer’s preloading bolt.
In orbit, a short electrical current pulse is applied to the Release Actuator, causing it to release the preloading bolt.
Example applications are Hold-Down and Release Mechanisms for solar arrays, antenna reflectors, deployable booms, covers and more. Release Actuators can also be used for attachment of spacecrafts to a launcher’s dispenser and releasing the spacecraft upon electrical command.
Watch the animation to see example applications:
|Description||Key Parameter Value|
|User Preload||35 kN|
|Ultimate Preload||More than 65 kN|
|Mechanical interface for release bolt||Threaded hole, M10|
|Actuation Current||4 A for 35 ms|
|Non-actuation current||0.25 A for 5 minutes|
|Bridge wire resistance||< 2 Ohms|
|Diameter of housing||63 mm|
|Total height||58 mm|
|Misalignment Capability||+/-2° half cone|
|Release shock||Low (<300 gSRS)|
|Temperature range, operating||-150°C / +150°C|
|Radiation||All materials sustain more than 1 Mrad (Si)|
|Atmosphere||Vacuum, GN2, air|
|Redundancy||Yes. Initiator is electrically and mechanically redundant.|
|ROM Price of recurring unit 1)||
5 170,- EUR per unit, at batch size 80
Contact us for a detailed quote and other order quantities.
|Technology Readiness Level||
ESA qualification is ongoing.
Note 1: Rough Order of Magnitude. Exclusive of any value added tax, import duties, customs and shipping. Information about products and services released on our web page does not constitute a commitment for sale. We strictly follow EU export regulations. Sales start when qualification is completed (Q2/2021).
If you are planning a constellation and have a need for several hundred units, please contact us for specific pricing information. For large batch sizes, significant price savings are possible.