HARDWARE / PRODUCTUpdated 24 Jul 2026

Solar Array Drive Mechanism. Type 2

Glavkosmos
Solar Array Drive Mechanism. Type 2

The Solar Array Drive Mechanism (SADM) Type 2 is an electromechanical device designed for the precise rotation of solar array wings on spacecraft, ensuring optimal power generation.

Key figurescomparable across the catalogue

Mass
13.2 kg
Largest dimension
300 mm
Design life
13.5 years
Lead time
15 months
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

Purpose
Rotation of solar array wings at the specified rate; electrical power transmission from rotating solar panels; transmitting of control and telemetry signals; formation and output of signals of shaft rotation angle.
Year of release
2013
Design life
13.5 years
Lead time
15 months
Flight qualification of the product
yes
Possibility to adapt the product to customer requirements
yes
Output shaft rotation rate
0-8 deg/min
Angle measurement error, not exceeding
0.083 °
Total current of power current-collecting devices
84 A
Number of power supply circuits
12 units
Overall dimensions
240 × 160 × 300 mm
Number of telemetry circuits
26 units
Operational life defined by hours, not less than
100000
Mass
13.2 ± 0.8 kg
Operating regime
continuous rotation
Active lifetime
10 years

About

The Solar Array Drive Mechanism (SADM) Type 2 is an electromechanical device with the primary purpose of rotating solar array wings at a specified rate. Beyond mechanical rotation, it facilitates the electrical power transmission from the rotating solar panels to the spacecraft’s systems. It also handles the transmission of control and telemetry signals, and generates and outputs signals indicating the shaft’s rotation angle. This product was released in 2013 and boasts a guaranteed service life of 13.5 years, with an estimated production/delivery time of 15 months. It is flight-qualified and can be adapted to meet specific customer requirements. The mechanism operates in a continuous rotation regime and has an active lifetime of 10 years, with an operational life defined by 100,000 hours.

Documentation

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

Source: trade.glavkosmos.com ↗

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