Stay ready for what comes next
Astronaut operating system 2 for Lely Astronaut
Want to upgrade your existing Astronaut A5 with AOS-2? Click on the button below and explore your upgrade options.
Introduction
A future-ready foundation for automatic milking
Astronaut operating system 2, or AOS-2, is the technological foundation of the Lely Astronaut A5 Next. It is designed to provide a stable, adaptable and protected platform for daily milking, while enabling current and future Astronaut features. All existing Astronaut A5 systems can be upgraded to AOS-2.
Benefits of the AOS-2 system for Lely Astronaut
Ready for current and future innovations
The renewed operating system is designed to improve stability and resilience to support the demands of daily milking.
Stable daily operation
The renewed operating system is designed to improve stability and resilience, helping the Astronaut respond smoothly to the demands of daily milking.
Smarter service and digital protection
Remote diagnostics and support can help technicians investigate issues more efficiently. The platform also includes enhanced measures for cybersecurity and data integrity.
Your challenges
The challenges you face

Technology continues to develop, while replacing a complete milking system each time a new feature becomes available is not practical. You need a platform that can support the next steps in your farm's development.
How AOS-2 helps
AOS-2 is the technological enabler for compatible features of the Astronaut A5 Next, including the Automatic milk filter, Milk for use and Teat detection system 2+. For eligible Astronaut A5 systems, an AOS-2 upgrade can provide access to selected A5 Next innovations without replacing the entire robot.
What this means for your farm
- Automatic milk filter: automates the milk-filter replacement process.
- Milk for use: makes selected milk available for use on the farm.
- Teat detection system 2+: supports faster and more accurate teat detection during attachment.

Your milking robot operates around the clock. Unexpected interruptions or recurring alarms can affect daily routines and require attention from you or your service team.
How AOS-2 helps
The renewed system architecture is designed for stability and resilience. It also enables more advanced diagnostics, helping your Lely Center investigate technical issues and provide support.
What this means for your farm
- A stable foundation for daily milking
- Remote problem investigation where available
- Software updates designed to be easier to manage

Automatic milking depends on software, connectivity and data. As farms become more digital, protection and controlled access become increasingly important.
How AOS-2 helps
AOS-2 incorporates enhanced cybersecurity and data-integrity measures. Combined with the recommended Lely Hub setup, it can also support secure on-farm data handling, backups and remote services.
What this means for your farm
- Enhanced digital protection for the robot platform
- Controlled support for remote services
- A stronger foundation for connected farm technology



FAQ
Questions asked about Astronaut operating system 2
AOS-2 is the operating system and technological foundation of the Astronaut A5 Next. It manages core robot functions and enables compatible current and future features.
AOS-2 is standard on the Astronaut A5 Next. Eligible Astronaut A5 systems can be upgraded. Your local Lely Center can confirm compatibility and availability for your setup.
AOS-2 provides the software foundation needed for compatible Astronaut A5 Next features. It enables the Automatic milk filter, Milk for Use and Teat Detection System 2+. Availability depends on the Astronaut model and farm setup, so your local Lely Center can confirm which features are compatible.
Yes. AOS-2 enables remote diagnostics and problem investigation, which can help your Lely Center support the system. The exact service options depend on your farm setup and local availability.
Lely Hub is recommended alongside AOS-2 because it supports secure on-farm data handling, backups and remote services. It is not required for every compatible robot feature.
AOS-2 is designed to make software updates easier to manage and to support continued improvements. Your Lely Center can explain the update process for your system.
Ready for the next step?
Could AOS-2 fit your Astronaut setup?
Every dairy farm and Astronaut installation is different. Your local Lely Center can assess compatibility, explain the available upgrade path and help you choose the features that fit your farm.
