HDES Service & Engineering
HDES Service & Engineering BV is the technology and IP company behind our Cool Gas Generators. HDES and Solidflow share one team, one owner and one address in Noordwijk. Everything HDES offered is now available through Solidflow.
From HDES to Solidflow
HDES was founded in February 2018 and builds on Cool Gas Generator work that goes back to 2011. In 2019 it was selected for the ESA Business Incubation programme in Noordwijk. Solidflow started in 2023 as an HDES spin-off to bring the technology to space, defence and civil markets. Since 2025 both companies are fully owned by the Solidflow management.
2011
First Cool Gas Generator fired in space, on board Proba-2.
2018
HDES Service & Engineering founded.
2023
MINOS enters production and Solidflow is created.
2025
One owner for both Solidflow and HDES.
What HDES brings to Solidflow
Propellant and grain development
Designing the chemical reaction for a gas, turning it into a working formulation and a full grain.
Design and prototyping
Mechanical and electrical design of casings and interfaces, prototypes and small production runs.
Test facilities
Firing test stand with data acquisition, grain test stand, pressure testing up to 300 bar and leak testing.
Qualification
Qualification programmes from full space qualification to systems for protected indoor use.
Energetic materials
Staff trained and certified to work safely with low-energy energetic materials.
Flight heritage
Cool Gas Generators flown on Proba-2, Delfi N3xT, InflateSail and RemoveDebris.
Where to find it now
HDES news 2023–2024
Solidflow and HDES at Space Tech Expo Europe in Bremen, showing CO₂ and oxygen Cool Gas Generators.
HDES at the Industry Space Days at ESTEC with the 20 Nl MINOS and a new 5 Nl CO₂ generator.
Successful kick-off of the Horizon Europe project ICARUS in Madrid. HDES is responsible for the inflation system.
Paper on the MINOS generator presented at the Space Propulsion 2024 conference in Glasgow.
Oxygen Cool Gas Generators shown at the Innovation Day for the Healthy and Wounded Soldier.
An Orga obstruction light survives a T-Minus sounding rocket launch as a passenger experiment.
The Dutch Deputy Minister for Defence visits the SBIC and HDES / Solidflow.
Solidflow, an HDES spin-off, wins third prize in the 2023 ESA Tech Transfer Competition.
MINOS shown at Space Tech Expo Europe in Bremen on the Bradford Space stand.
Commercial production and deliveries of HDES Cool Gas Generators have started.
For current news, see Solidflow news.
Contact
HDES Service & Engineering BV · Kapteynstraat 1, 2201 BB Noordwijk, The Netherlands
info@solidflow.nl