Space
Pyrotechnic Detonating Transfer Line
Space
Satellites
Separation
Pyrotechnic Hold And Release Mechanism (HRM)
Pyroalliance designs a wide range of separation nuts assembled on a satellite or a dispenser.
These separation nuts are used for the in orbit deployment of antenna reflectors and solar generators on satellites or used for the separation of satellites of a constellation, from a dispenser. Integrated into a more complete mechanical assembly, these separation nuts can form an HRM (Hold and Release Mechanism) that allows to withstand multi-directional mechanical constraints. With a recorded rate of in-flight success of 100% over more than 10000 separation nuts delivered until today to its customers, Pyroalliance provides with such separation nuts extremely reliable solutions of Hold down and release.
HRM at a glance
Benefits of pyrotechnics
- Reliability
- Actuation time and synchronicity
- Structural link satellite/launcher mastering
Space applications
- Satellite release from dispenser
Pyroalliance's equipment on board satellite Globalstar - ©Arianespace
Key figures of pyrotechnic performance
| TECHNICAL SPECIFICATIONS | OUR RANGE OF PERFORMANCE |
| OPERATING TIME (TYPICAL VALUES): | Few ms |
| HEIGHT WITHOUT IGNITERS: | 95 mm |
| DEPTH: | 91 mm |
| BOLT DIMENSIONS: | M10 x 1.5 |
| WEIGHT WITHOUT INITIATORS WITH BOLT CATCHER: | 740g |
| WEIGHT WITHOUT INITIATORS AND WITHOUT BOLT CATCHER: | 490g |
| OPERATING TEMPERATURE: | -50°C to +50°C |
| OPERATING BOLT TENSION: | Up to 26.5kN |
| INITIATORS: | 2 NSI |
HRM (Hold down and Release Mechanism)
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