SITAEL resistojet thrusters are low power Xenon-fed or Argon-fed devices designed for a wide range of applications. The performance provided by the XR- series makes these thrusters suitable both as main propulsion system on mini- and micro-satellites and as auxiliary system for orbit maintenance and attitude control on larger platforms.
SITAEL resistojet thrusters (XR-50, -100 and -150) have been developed since 2003 adapting to different size, mass and performance requirements. Design of the thruster has been ruggedized by substituting the original tungsten filament heater with an industrial COTS component for very harsh environments. Their flexible design allows for additional optimization depending on specific mission profile or custom specifications. SITAEL XR-series thrusters, even if optimized considering Xenon as propellant, may be operated with any non-oxidizing gas or liquid droplets. Each thruster configuration presents an embedded miniature conical nozzle and may be also operated in “cold-gas” mode with reduced performance and lower thermal regimes, thus ensuring an intrinsic redundancy of the system.