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At ISPTech, we’re proud to introduce our Cold Gas Propulsion Module and Thruster - a solution designed to meet the growing need for medium-thrust satellite manoeuvring without compromising payload performance.

Addressing a need for spacecraft customers

Today’s satellite operations - such as orbit keeping, orbit raising, and deorbiting - are typically handled by systems such as electric propulsion. While these technologies have matured, they come with a significant drawback: high power consumption. This increases the satellite’s overall power budget and limits the energy available for increasingly demanding payloads. Additionally, these systems are often complex, reducing the robustness of the system and lowering reliability.

Our Cold Gas system changes that. It delivers medium thrust with negligible power requirements, allowing operators to prioritise payload performance without sacrificing manoeuvring capability.

Designed for Simplicity and Reliability

Our Cold Gas Propulsion Module is built around a propellant that’s non-flammable, non-toxic, high-density, chemically stable, and self-pressurising, with a low freezing point—making it both safe and reliable for space operations. The system’s architecture is deliberately simple, using a self-pressurising mechanism with minimal active components. This reduces the number of potential failure points and allows us to bypass pressure vessel regulations, which in turn simplifies integration and operation across a wide range of satellite platforms, from 2U to 24U CubeSats.

The module supports pulse mode operation for precise actuation and requires no preheating or conditioning, enabling fast and flexible deployment. It is fully ITAR-free and REACH-compliant, ensuring broad compatibility and regulatory ease. Its plug-and-play design streamlines integration, and thanks to additively manufactured tanks, the module’s dimensions can be customised along all three axes. Optional features such as additional tuna-can volume and heating elements are available to meet specific mission needs.

A Broader Vision

With the addition of the Cold Gas Propulsion Module to its product portfolio, ISPTech expands its propulsion offering to commercial and institutional users seeking scalable, compliant, and agile solutions for satellite mobility.

“We saw customers struggling with propulsion systems that drained power budgets and restricted payload flexibility. Our Cold Gas module is designed to change that—filling a critical gap in the market and enabling a new era of in-space mobility for all spacecraft and missions.” - Lukas Werling, CEO & Co-founder of ISPTech

ISPTech will continue to develop its HyNOx and HIP_11 technologies, too, with three missions planned for HyNOx in 2026.

Built for Real Missions in months

The first flight of the Cold Gas Propulsion Module is scheduled for 2026, marking a key milestone in validating its performance under real mission conditions. The system was developed and tested in just 4 months, a timeline made possible by our team’s experience and focused execution. With flight model integration already underway, we’re confident in the module’s readiness and excited to see it operate in space.

If you are interested, the 1U cold gas propulsion module is available within 16 weeks after placement of the order.

Stay tuned!

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