6-Unit CubeSat structure


  • Highly modular design
  • Detachable side panels for maximum accessibility
  • Multiple PCB sizes supported (custom configuration)
  • Dual Kill-switch mechanism

STEP file
Option sheet

SKU: 100004 Category:
Flight Heritage since 2016


The ISISPACE 6-Unit CubeSat structure is developed as a generic, modular satellite structure based upon the CubeSat standard. The design created by ISISPACE allows for multiple mounting configurations, giving CubeSat developers maximum flexibility in their design process. The stacks of PCBs and other flight modules can be built up first in the secondary structure and integrated with the load-carrying frames at the end of the process, ensuring accessibility of the flight avionics. In addition, the use of a load-carrying frame and detachable shear panels allows for access to all parts of the spacecraft avionics, even after final integration by removing one or more of the shear panels. The modular 6-Unit Cubesat structure allows up to six 1-Unit stacks of PCBs, or other modules, to be mounted inside in two rows of three. For example a 3-Unit bus in combination with a 3-Unit imager.


Property Value Unit
Primary + Secondary Structure Mass 1100 gram
Outside Envelope (l x w x h) 100 x 226.3 x 340.5 mm
Inside Envelope (l x w x h) per module (6 x) 96 x 96 x 89.4 mm
Thermal Range (min – max) -40 to +80 °C



  • Different PCB form factors
    • PC/104 CubeSatKit compatible (Default)
    • 94 x 94 mm PCBs
    • Custom designs
  • Different orientations of PCB stack
    • Vertical orientation (default)
    • Horizontal orientation (only featured for custom 94 x 94)
  • Customized structural elements
    • Special mount points
    • Cut-outs
    • Special surface treatments


Qualification and Acceptance testing

Test QT AT
Mechanical Shock
Thermal Cycling
Thermal Vacuum

*QT is performed on the design/qualification model
*AT is performed on the unit to be shipped

In the box

  • Boxed in transparent storage case
  • Primary Structure parts (Side Frames, Ribs)
  • Secondary Structure parts (PCB mounting elements, etc) on demand
  • Kill-Switch mechanism (2x)
  • Dummy PCBs
  • Fasteners
  • User Manual and Installation Guide