HARDWARE / PRODUCTUpdated 24 Jul 2026

Mechanical Device Hold-down Lock (mechanical, involving release device)

Glavkosmos
Mechanical Device Hold-down Lock (mechanical, involving release device)

A mechanical hold-down and release device designed to secure deployable elements of a mechanical device in a stowed position during launch and then release them in orbit.

Key figurescomparable across the catalogue

Mass
0.455 kg
Design life
6 years
TRL
9

Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.

As published by the supplier

Year of release
2016
Design life
6 years
Flight qualification of the product
o
Possibility to adapt the product to customer requirements
Yes
Clamping force
1000 kg
Ultimate side loads at the interface surface with the mechanical device deployable element
500 kg
Operating temperature range
-100 to +100 °C
Operational life defined by the number of actuations, not less than
50
Mass
0.455 kg
Actuating current applied during 1 s
3 to 8 A

About

The Mechanical Device Hold-down Lock is a component of a hold-down system, specifically designed to hold a mechanical device in its stowed position. It was released in 2016 and boasts a guaranteed service life of 6 years. The product is flight qualified and offers the possibility to be adapted to customer requirements, indicating its versatility for various space missions. It is capable of providing a clamping force of up to 1000 kg and can withstand ultimate side loads of 500 kg at the interface surface with the deployable element. The device operates reliably across a wide temperature range from -100°C to +100°C and has an operational life defined by at least 50 actuations. Its compact design is reflected in its low mass of 0.455 kg, and it requires an actuating current of 3 to 8 A applied for 1 second.

Documentation

No public datasheet yet — request the datasheet / ICD from the supplier.

Source: trade.glavkosmos.com ↗

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