Product Introduction

The solar panel deployment mechanism is a critical mechanical subsystem for satellites, engineered to secure solar panels in a stowed position prior to satellite-rocket separation and initiate their precise, reliable deployment once separation is complete. It consists of two core assemblies: Hinges and the Hold Down and Release Mechanism (HDRM).

Our hinge assemblies encompass root hinges and inter-panel hinges, featuring more than 100 on-orbit flight heritage instances spanning from CubeSats up to 50kg-class satellites. This extensive on-orbit validation attests to their exceptional lightweight design and proven reliability for space applications.

The HDRM portfolio comprises three main variants: thermal knife separation nut, thermal expansion split nut, and shape memory alloy (SMA) actuated models, all dedicated to the secure stowage and controlled release of solar panels. These mechanisms offer key advantages: non-explosive operation, low-shock release, compact form factor, lightweight construction, and ground reusability—enabling convenient testing and reusability during the ground integration phase.

Everlight Space’s deployment mechanisms have achieved wide-ranging orbital applications, not only for satellite solar panels but also for on-board payloads such as camera systems and communication antennas, demonstrating versatile adaptability to diverse satellite mechanical deployment needs.