Lely North America Blog

Meet the Next Generation of Robotic Milking: The Lely Astronaut A5 Next

Written by admin | Mar 13, 2026
The Lely Astronaut A5 Next robotic milking system builds on more than 30 years of innovation from Lely, combining proven robotic milking performance with new features that enhance cow comfort, efficiency, and data-driven herd management through Lely Horizon farm management software

The future of dairy farming continues to evolve, and automation is playing a key role in helping producers improve efficiency, animal welfare, and milk quality. The new Lely Astronaut A5 Next robotic milking system represents the latest step forward in robotic milking technology, building on more than 30 years of experience from Lely and insights from thousands of dairy farms around the world.

Designed with both cows and farmers in mind, the Lely A5 Next introduces new technologies and improvements that help streamline daily routines, deliver deeper herd insights, and create a more comfortable milking experience for the herd.

Built on 30 Years of Dairy Automation

With more than 50,000 robotic milking units installed worldwide, Lely has spent decades refining how automation can support dairy farms. The Lely A5 Next builds on that experience by combining proven milking technology with new innovations designed to improve reliability, efficiency, and ease of use.

At its core, the system focuses on four key principles:

  • Freedom of choice for cows
  • Individual treatment based on real-time data
  • A consistent milking experience 
  • A strong focus on cow health

These principles help create a calmer barn environment while supporting higher productivity and better decision-making for farmers.


Designed for Cow Comfort and Natural Behavior

A defining feature of the Lely A5 Next system is its free cow traffic philosophy, which allows cows to decide when they eat, rest, or visit the robot for milking. This freedom reduces stress and supports more natural behavior, which can positively influence milk production and herd health.

The Lely A5 Next continues this approach with the I-flow design, allowing cows to enter and exit the milking unit in a straight, natural path. The open, spacious cow box ensures cows remain comfortable and close to the herd during milking, helping create a relaxed environment in the barn.

Smarter Technology for More Precise Milking

The Lely A5 Next introduces several new technologies that enhance the milking process while maintaining consistency for each cow.

Completely New Operating System (AOS-2)

The Lely A5 Next comes with a completely new operating system (AOS-2). It is a smart partner that offers more resilience, adaptability, and digital protection. The AOS-2 will help you today and in the future.

Teat Detection System 2+

The completely renewed Teat Detection System 2+ provides optimal teat detection and connects like a farmer. It has an improved connection performance combining the focus of the laser with the wide view of the camera. It also provides insights into failed milkings.

Improved Pre-Treatment Brush

The healthier the udders, the better the milk. This is why the Lely A5 Next is equipped with a unique brush cleaning system that is designed to remove dirt and manure around the teats and the underside of the udders, ultimately stimulating milk let-down. After cleaning the teats, the brushes are thoroughly disinfected to help minimize the risk of cross-contamination.

Automatic Milk Filter Replaces Filter Socks 

An optional automatic milk filter replaces filter socks up to three times per day, eliminating a repetitive task that can easily be forgotten during busy farm schedules.

Milk for Use Separation

Improved milk separation technology makes it easier and cleaner to handle colostrum or milk that needs to be diverted from the main tank.

Enhanced Identification Options

New ear-tag identification technology provides a flexible entry-level cow identification system that can integrate with monitoring tools.

Seamless Data-Driven Herd Management with Lely Horizon 

The Lely A5 Next works seamlessly with Lely Horizon farm management system, which collects more than 100 data points during every milking. This information helps farmers monitor:

  • Milk quality and yield
  • Cow health indicators
  • Reproductive status
  • Feeding and milking patterns

The system turns this data into actionable insights, generating alerts and tasks so farmers can quickly identify cows that require attention. With access through smartphones and dashboards, producers can stay connected to their herd at any time.

More Time for What Matters Most

By automating the milking process, the Lely A5 Next helps dairy farmers spend less time on repetitive tasks and more time focusing on herd management, cow health, and strategic decision-making.

Automation also allows for more flexible daily routines while maintaining consistent milking schedules and monitoring cow performance around the clock.

The new Lely Astronaut A5 Next is available at your local Lely Center.