The RejectSeparator by Flikweert Vision is a compact, intelligent optical sorting machine specifically designed to refine residual and rejected product streams in potato and onion processing.
During the sorting process, stones, soil clods and unwanted materials can remain mixed with rejected potatoes and onions. Instead of allowing these materials to reduce the usefulness of the entire stream, the RejectSeparator uses advanced camera technology and artificial intelligence (AI) to distinguish between foreign objects and valuable agricultural products.
With its intelligent detection system and precise ejector fingers, the machine removes unwanted materials while allowing usable potatoes and onions to remain in the product stream.
The result is a cleaner, more valuable residual stream, ready for further processing or other suitable applications.
Compact, reliable and easy to integrate, the RejectSeparator offers growers and processors a practical way to improve product recovery and make better use of their existing sorting operations.
How does the RejectSeparator work?
The RejectSeparator combines industrial camera technology, AI-powered object recognition and precise mechanical sorting in a simple, efficient process.
- Detection: Every object is captured An industrial camera captures each object while it lies on the conveyor belt. The camera is positioned above the belt to provide sufficient time for a sharp and reliable image of each individual object.
- Analysis: Intelligent AI recognition AI models analyse the captured images and determine whether each object belongs in the residual stream or should be removed. The system distinguishes foreign materials, such as stones and clods, from potatoes and onions.
- Sorting: Fast and precise separation The system immediately translates its decision into a sorting action. Ejector fingers remove unwanted objects, leaving a cleaner and more usable residual product stream for further processing.
What does the RejectSeparator sort?
The RejectSeparator removes unwanted soil clods and stones from potato and onion reject streams and can also eject selected products depending on the sorting application and configuration.
Key benefits of the RejectSeparator
Plug-and-play integration
Its compact, self-contained design makes the RejectSeparator easy to integrate into almost any residual product flow without complicated installation.
Intelligent optical recognition
Industrial camera technology and AI automatically identify stones, clods and other foreign materials, enabling fast, objective and precise sorting.
Reliable, low-maintenance operation
Designed for practical operation, the machine features a simple, maintenance-friendly design, clean cameras and minimal wear to support reliable performance and high uptime.
Flexible application
Connect the RejectSeparator to one or more QualityGraders or use it independently in other suitable residual product streams. It is designed to provide additional cleaning and improve the usefulness of the reject flow.
Multiple conveyor-belt lengths
Available in different conveyor-belt lengths, allowing the machine to be adapted to different sorting processes and installation requirements.
Flexible integration into your sorting line
The RejectSeparator is designed to work as part of a wider sorting operation or as an independent solution.
- Connected to a QualityGrader: Refine the rejected product stream after quality grading by separating stones and clods from rejected potatoes and onions.
- Connected to multiple QualityGraders: Combine the machine with one or more QualityGraders to support a shared residual stream.
- Standalone installation: Use it independently in other suitable residual product flows where additional optical separation is required.
Its compact design and different conveyor-belt length options make it adaptable to a variety of processing layouts.
Make your residual product stream work harder
The RejectSeparator helps potato and onion growers, processors and packing operations take a smarter approach to residual product handling.
By using AI-powered optical sorting to separate stones and clods from rejected products, it helps create a cleaner stream that can be more suitable for further processing or other applications, depending on product quality and requirements.
With its compact construction, flexible integration options and maintenance-friendly design, the RejectSeparator offers a practical solution for businesses looking to improve the handling and usefulness of their residual product streams.






