HARDWARE / PRODUCTUpdated 24 Jul 2026

Spacecraft Separation Device

Glavkosmos
Spacecraft Separation Device

A mechanical device designed for the shock-free separation of spacecraft from an adapter, featuring locks, spring-loaded pushrods, a clamp-band with explosive pins, separation connectors, and sensors.

Key figurescomparable across the catalogue

Mass
10.5 kg
Design life
6 years
Lead time
12 months

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

Purpose
Spacecraft attachment to the adapter for the period of their joint operation; shock-free separation of the spacecraft with the specified parameters using the command from the booster control unit.
Year of release
2011
Design life
6 years
Lead time
12 months
Brief history of flight qualification
Amos-5, Yamal-300K, Express-AT1, Express-AT2, Express-AM8, KazSat-3, Loutch-5V, Express-AM5, Express-AM6, Yamal-401.
Separation device mass
10.5 to 15 kg
Attitude rate of spacecraft separation
no greater than 3% relative to any axis
Linear velocity of spacecraft separation
1.5±0.5 m/s
Separating spacecraft mass
1600 to 3400 kg
Number of locks
6 or 12 units
Maximum permissible axial equivalent force at the separation interface
up to 1080000 N
Number of push-rod springs
6 or 8

About

The Spacecraft Separation Device serves to attach a spacecraft to an adapter during their joint operation and to facilitate shock-free separation of the spacecraft with specified parameters upon command from the booster control unit. It was first released in 2011 and boasts a guaranteed service life of 6 years. The estimated production and delivery time is 12 months. The device is composed of locks, spring-loaded pushrods, a clamp-band equipped with explosive pins, separation connectors, and separation sensors. It has a strong flight heritage, having been qualified on missions such as Amos-5, Yamal-300K, Express-АТ1, Express-АТ2, Express-АМ8, KazSat-3, Loutch-5V, Express-АМ5, Express-АМ6, and Yamal-401.

Documentation

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

Source: trade.glavkosmos.com ↗

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