Key highlights

Preload is achieved electronically in >> PURE TENSION << by controlled heating of the Shape Memory Alloy with precision >99%.

The device is corrosion resistive, clean, without use of any fluid or grease. It can be safely operated in clean room environment. UNIKA is light and transportable and designed to be operated in small and difficult to access locations.

Final tightening of the nut is achieved comfortably through the device itself – no side access to nut is required!

If your AIT team is interested in UNIKA solution to, contact our team to set up a trial. Accepting orders for 2027.

Applications

Preload of:
- Solar array HDRMs
- Antenna HDRMs
- Satellite separation mechanisms
- Launcher and fairings non-explosive separation mechanisms
- Sensitive fasteners

Key features

Light cleanroom friendly replacement of hydraulic preload systems. Full set contains:

Mechanical effector unit
Power source/control electronics
All necessary cables, charger
Reset docking station
Rugged transportation enclosure
User manual

FEATURES:

Mechanical interface: User customized mating head (see datasheet for typical)
Release bolt thread: User customized up to M10
Generated preload: Up to 50 kN @ max 3 mm travel
Preload control: Handheld display (regulation by build-in load)
Reset: By supplied docking station after 5-10 preloads depending on application
Preload time: +- 5 minutes (initial temperature dependent)
Preload accuracy: 1% error envelope
Safety features: Enclosed body, energy dissipation foam, safety I/F, automatic prevention of overload and overheat
User records of preload data: force/time, temperature/time

Customization

Mating head customization
Mating thread customization
Optional torque brake for sensitive HDRAs

Manufacturing

UNIKA is fully manufactured in the EU

Testing & qualification

Under ESA qualification
Accepting expressions of interest for industrial trials and pre-orders

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Last updated: 2026-11-09