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Release Actuator 18kN

Description Key Parameter Value
User Preload 18 kN
Ultimate Preload More than 30 kN
Mechanical interface for release bolt Threaded hole, M7 or M6
Actuation Current 4 A for 35 ms
Non-actuation current 0.25 A for 5 minutes
Bridge wire resistance < 2 Ohms
Envelope of housing Fits in 44 mm x 47 mm
Total height 43.5 mm
Misalignment Capability +/-2° half cone
Mass 0.139 kg
Release shock Low (<200 gSRS)
Temperature range, operating -150°C / +150°C
Radiation All materials sustain more than 1 Mrad (Si)
Atmosphere Vacuum, GN2, air
Initiator Technology Non-explosive
Redundancy Yes. Initiator is electrically and mechanically redundant.
ROM Price of recurring unit 1) 6 670,- EUR per unit, at batch size 80
Contact us for a detailed quote and other order quantities.
ECSS compliant Yes
Technology Readiness Level TRL 7
Successfully ESA qualified.

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.

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.


Application example of Space-Lock’s Release Actuator in a satellite solar array Hold-Down and Release Mechanism (HDRM):

Application example of Space-Lock’s low shock Release Actuator in a launcher’s satellite dispenser:

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