NEXT LEVEL SORTING at STENA
Stena, a metal recycling expert, was able to specifically optimize the material feed to three XRF sorters by using the ActiveFEED. The goal was to solve the problems with the old material feed system, make optimal use of the high-quality sensor technology, and maximize both sorting quality and throughput.
A highly automated sorting system for nonferrous metals—featuring sensor-based sorting and meeting high standards for quality and throughput.
Stena Nordic Recycling Center, Halmstad (Sweden)
Non-ferrous metal fractions, including Zorba, Zurik, copper, and brass
Feeding Three XRF Sorters
Optimization of Sorting Results, Throughput Control, Retrofit
IN ACTION
The ActiveFEED replaces the previous material feeder.
Despite modern sensor technology, the existing feeding system slowed down the entire line. The material flow was anything but consistent—with noticeable consequences for quality, effort, and equipment availability. It became clear that the performance of sensor sorting depends directly on the material feed. Every day, attempts were made to manually control the throughput and prevent blockages, underfeeding, and overfeeding.
The feed system thus became the limiting factor for the entire sorting line.
Sensor sorting should be operated as intended—with a defined amount of material and even distribution.
The focus was on: a
The video shows how Stena discovered ActiveFEED through an online search. After a test at the SPALECK TestCenter using Stena’s materials, it was clear: ActiveFEED is the simple technical solution for achieving NEXT LEVEL SORTING.
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The SPALECK ActiveFEED is designed to maintain a stable target throughput once it has been set—even under varying material conditions. As a result, the sensor-based sorting system receives exactly the material flow for which it is designed.
Before ActiveFEED was installed at Stena, SPALECK tested the solution at its own TestCenter—using original material from Halmstad. This made it possible to accurately assess performance and parameters in advance.
Overview of the line,
Material Flows and Objectives.
Tests conducted at the SPALECK TestCenter using original materials.
Project-specific design and engineering of the ActiveFEED.
Installation into the existing line and connection to the control system.
Commissioning, fine-tuning, and handover to the Stena team.
TRANSFERABILITY for Your Processing
The project at Stena demonstrates how important an optimal material feed is for sensor-based sorting systems. This is exactly where ActiveFEED comes in as the driving force.
A consistent and controlled feed improves sorting quality, increases usable throughput, and reduces the need for manual intervention.
Among other things, the solution can be applied to:
Discuss with our experts in screening technology and material feeding
Would you like to learn more about optimized material feeding for your XRF sorting machines? Or do you already have a specific project in mind? Then let’s talk about your material and your XRF sorting. I’d be happy to show you more references and use cases.
We would be happy to provide you with detailed advice on how you can easily optimize your XRF sorting process with the help of ActiveFEED.
Here you’ll find important questions and answers about ActiveFEED, the sorting quality and performance optimizer.
The ActiveFEED feed hopper pays for itself from day one, as it significantly increases the recovery rate of non-ferrous metals in metal recycling, for example. In many cases, the payback period is less than half a year. We would be happy to advise you personally on this matter. Examples such as STENA Recycling and KMR Recycling show you exactly how this works.
Switching to a SPALECK ActiveFEED feed hopper optimizes material feeding in recycling plants. The constant feed actively prevents sorting equipment from being overloaded or underfed. This improves the quality of sorting in the recycling process and, as a result, expands the options for recycling. Many recyclers report that this allows them to take their sorting to the next level. Take STENA Recycling, for example, as shown in this feedback video.
Yes, you can easily retrofit the SPALECK ActiveFEED feed hopper. Many of our customers are replacing their standard batch sizes and, as a result, achieving significantly better and more profitable sorting results. Check out this feedback from our client STENA to see how easy the replacement process is.
Yes, the ActiveFEED is ideal as a feeding system for X-ray sorting technology, such as XRF or XRT sorting. In XRF and XRT sorting machines, it enables fully automatic, continuous material feeding. This allows recycling companies to use ActiveFEED to automatically feed their sorting machines with the optimal amount of material for each specific sorting machine and type of recyclable material. This increases both sorting efficiency and volume. In addition, sorting quality can be significantly improved through optimal feeding. See also the case study by STENA Recycling and the recycling expert Skrotfrag.
The ActiveFEED infeed unit is available in sizes ranging from 2 to 50 m³. We would be happy to advise you on the optimal size for your recycling application.
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