Drive systems for space

Ready for the space age.

maxon drive systems are among the most flown drives in space research, and in space they power some of the most complex robotic systems that humans have ever built.

Optimized service for space applications.

To support customers in the space industry, maxon created a dedicated space group in 2020. The maxon SpaceLab offers optimized service for space applications. This catalog introduces a selection of high-reliability solutions for demanding applications in space environments, with an emphasis on products with space heritage.

With the SpaceLab, maxon has dedicated resources to support our space customers.

The Spacelab is part of the R&D group and specializes in projects that have the following features and backgrounds:

Commercial “new space” applications

Space science missions

Extreme environments (Cryogenic and ultra-high temperature, vacuum, radiation, high mechanical shock and vibration)

Size scale up/down from available designs

These applications can contain high-quality requirements, high technical complexity, small volumes (one shot, micro and small series), and complex test campaigns, but are not limited to these.

Space applications.

maxon's actuators have been used in numerous space agency funded missions worldwide and can be found on commercial satellites, rovers, science spacecraft, and the ISS. Actuators from maxon’s space catalog can be modified as needed to meet the requirements of each customer mission, which include NASA, ESA, JAXA and many private companies in the commercial and new space market. maxon can handle one shot high-end scientific space missions, small volume and high quality commercial space applications and up to high quantity new space satellite constellations.

List of applications where you can find maxon’s actuators:

Deployment and Rotary Mechanisms

Reaction Wheels

Gimbal Drives

Pump and Valve Actuation

Release and Safety Mechanisms

Space Robotics

Rover Wheel Drive and Steering

Launcher Mechanisms

And much more

Developed for the most demanding space missions.

In addition to reliable standard components, the SpaceLab portfolio also includes solutions according to highly specific customer specifications. These development-intensive applications are designed, tested and produced in-house by maxon in defined process sequences. Our space experts assist in defining the project scope considering technology, cost and time, accompanied from the specification phase to ramp-up and ensure the most reliable product support in the space industry

Examples of special designs:

Fully customized actuators

Joint actuators

Special interfaces (e.g. flanges with inserts)

Size scale up/down from available designs

Extended rotor inertia for reaction wheels

Optimized weight (e.g. stepped gearboxes)

When there is no room for error.

Whether it’s a historic Mars mission or a commercial space shuttle, the reliability of individual components is of immense importance in all space applications. Since maxon systems drive many mission-critical components whose failure would be unacceptable, we also offer electrically redundant motors to safeguard the entire mission. maxon SpaceLab offers a range of solutions to suit different redundancy requirements.

Dedicated space specialists.

We have over 20 years of experience and a proven track record in space missions. Using this experience, the maxon SpaceLab experts have compiled a dedicated range of standard components that have been modified in terms of material, processing, and lubrication.

Based on proven maxon industrial motors, these products are already qualified for space applications. We can initially provide less expensive industrial variants for prototypes and functional samples. As a result, our customers benefit from a significantly shorter development phase and economical large-scale production. This helps reduce costs for commercial rocket or satellite launches.

Drives

Our space product recommendations.

Brushless motors (EC)

EC 20 flat / EC 32 flat / EC 45 flat / EC-4pole 22 / EC-4pole 30 / EC 13 / EC 40 L

maxon flat motors from automated manufacturing are especially suitable for installation in confined spaces. Designed as internal and external rotors, they achieve speeds of up to 20,000 rpm. Available with Hall sensors, sensorless, or frameless.
With their special winding technology and 4-pole magnets, the EC-4pole drives deliver the highest power per unit of volume and weight. They have no cogging torque, high efficiency, and excellent controller dynamics.

The extremely long service life offered by our electronically commutated EC motors can be exploited particularly well using preloaded ball bearings. They have excellent torque characteristics, high power, and a wide speed range.

Reduced quantity of adhesives selected for compatibility with the space environment, all stainless steel, laser welded connections.
Modified for shock, vibration, radiation resistance, and low outgassing operation in vacuum at extreme temperatures.

Brushed motors (DC)

DCX 10 / DCX 14 / DCX 22 / DCX 32 / DCX 35

maxon DCX motors feature unrivaled torque density and smooth running. The robust design and ironless rotor make them a dynamic drive for almost all applications. Available with graphite and precious metal brushes, ball bearings, and other optional components.

Reduced quantity of adhesives selected for compatibility with the space environment, all stainless steel, laser welded connections.
Modified for shock, vibration, radiation resistance, and low outgassing operation in vacuum at extreme temperatures.

Gearheads

GP 10 / GPX UP14 / GPX 22 UP / GPX 32 UP / GPX 42 UP

Precision spur wheel and planetary gearheads are designed specifically for our motors and are adapted directly at maxon. The motor pinion is the input gear of the first gear stage and is rigidly connected to the motor shaft.

GPX gearheads offer high power transmission in a very short design. The modular design and the scaled stages provide the basis for customized solutions. They offer planet and sun gear cage modules for each gear stage, high torques and speeds as well as low noise and backlash.

Adhesive free, all stainless steel.
Laser welded and cold formed connections.
Modified for shock, vibration and low outgassing operation in vacuum at extreme temperatures.

Sensors

ENC 13 / MR Type M

Robust sensors deliver high accuracy and signal resolution. Because of resonance, these are mainly mounted on motors with a continuous shaft. These devices have to be fitted to the motors at maxon, as the installation process is fine-tuned to the corresponding motor.

Counts per turn: 2CPT (8 Quad-CPT)/32CPT (128 Quad-CPT).
Redundant 2-channel sensor – version qualified for use in space, development from MER mission.
Fully electrically redundant (two electrically isolated circuits on one board) Vibration- and shock-resistant housing.

Brakes

AB 22 / AB 32

maxon offers cogging torque brakes and active brakes for space projects. The brakes can be installed as a module in various drive combinations and prevent the motor from rotating when it is at a standstill and switched off.

22 mm/32 mm active permanent magnet brake.
Modified for high vibration and shock loads.