Reference: Screening Machines for Electronic Waste
This recycling project at Immark demonstrates the crucial impact that precise sorting, screening out of fine particles, and material feeding have on the quality of the end product in electronics waste processing.
The SPALECK screening and conveying technology used processes the electronic scrap in such a way that downstream sorting systems can process the sorted fractions very cost-effectively.
Switzerland is home to one of the world’s most modern electronics waste recycling facilities, which focuses on high material purity and maximally efficient and cost-effective processes.
Immark AG, Regensdorf (Switzerland)
Electronic waste recycling
Electronic Waste and Discarded Electronic Devices
Fully Automated WEEE Processing
IN ACTION
The vibrating screen performs the initial sorting. The machine is equipped with a housing that is very easy to access. The screen liners are optimized for electronic waste.
High throughput with precise sieve cuts. The SPALECK 3D COMBI, with its cleaning-optimized screen decks and Flip-Flow screen mats on the lower deck, classifies the material for sorting.
SPALECK conveyor chutes play an important role in the sorting of electronic waste: they feed the material to the sorting machines. To do this, they level it out and feed it into the sorter at the optimal feed width.
This specialized solution has one goal: to screen out any fine material that may still be present before it enters the sensor sorting system. The result: clean belts, clean sorting, and optimized sorter performance.
Discuss with our experts in screening technology and material feeding
Would you like to learn more about optimized screening and material feeding for your existing or new e-waste processing facility? Then let’s talk about your material and how it’s processed. I’d be happy to show you more references and use cases.
Electronic waste is a highly complex material stream with widely varying material properties. Different classes of devices, designs, and composite materials must be reliably recycled—from printed circuit boards and cables to housing components and metal composites.
After crushing, the result is a mixture that is technically challenging to process, consisting of different particle sizes and material densities. Typical components include non-ferrous metals, plastic-containing fractions, printed circuit board parts, cable and wire scraps, as well as a significant amount of fine particles consisting of glass, sand, and contaminants.
Without targeted sorting and separation of fine particles, this leads to specific problems in the subsequent recycling process:
For Immark, the focus was on processing the shredded material using electronic waste screening machines so that the sorting equipment could sort it under optimal conditions. The goal was to produce clearly defined fractions from the highly heterogeneous WEEE material stream and to prevent contaminants such as dirt or long pieces.
The video shows how Immark and SPALECK worked together—from project development through extensive screening tests at the SPALECK TestCenter —to arrive at the optimal solution for e-waste processing.
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Precise classification, reliable screening of fine particles, and optimized material feed
SPALECK, Deutschland
Immark AG, Schweiz
We would be happy to advise you on how you can improve your sorting quality in electronic waste recycling through optimized screening and material feeding.
TRANSFERABILITY for Your Processing
The Immark project demonstrates how much the quality of sorting depends on the upstream material preparation process.
Particularly in metal recycling and WEEE recycling, the combination of classification (screening), targeted separation of fine particles, and a controlled material feed determines how efficiently and reliably the sorting technology can detect the recyclable material and sort it into its individual components.
Through extensive screening tests at the SPALECK TestCenter, the optimal machine configurations were determined and validated in advance.
The recycling technology used can be applied to applications in which heterogeneous material streams are prepared for eddy current and sensor-based sorting:
Would you like to learn more about our screening machines for electronic waste? Or are you perhaps planning a new project and would like to conduct extensive sieving tests on your material at no cost? Then let’s talk about your material now. I’d also be happy to show you more examples of SPALECK screening machines used in electronics scrap processing.
Retrofit at Stena
At one of Europe's largest non-ferrous metal recycling plants
Retrofit at Immark
The most suitable screening method for your electronic waste can be reliably determined based on your specific material and the planned process. Key factors include, among others, particle size distribution, the proportion of fine particles, the exact material composition, and throughput requirements. Based on this, we develop an optimal design and would be happy to test it with your material at the SPALECK TestCenter. In addition, thanks to our ModularDESIGN+ concept, our screening machines for e-waste recycling are highly adaptable.
Yes, you can view examples of systems for processing electronic waste using SPALECK screening technology. We would be happy to arrange a visit to existing facilities so that you can see for yourself how the processing is done and the screening quality achieved. We’d also like to invite you to sort your electronic waste at our SPALECK TestCenter.
No, processing electronic scrap and metals such as SLF or ASR is no problem for SPALECK Screening technology. Our screening machines are configured to reliably handle different Material flows and similar applications. We determine the exact machine setting with you in advance.
The screening machine is designed to fit perfectly into your planned electronic waste processing plant. SPALECK screening machines are customized to your material, throughput, and process control. We take into account interfaces, installation conditions, and conveyor systems to ensure easy integration into your plant. It also happens that plant operators replace screening machines from other manufacturers with SPALECK screening machines in an existing facility. This is generally not a problem either.
Yes, you can test your electronic scrap in advance on SPALECK screening machines. In the SPALECK TestCenter, we carry out tests with your original material on two complete Recycling lines and thus analyze under real conditions which Separation sizes and screening machine design is optimal for your application. This provides you with a reliable basis and you can also use the screened material for further tests, e.g. with sorting machines. The tests in the SPALECK TestCenter are free of charge for you.
SPALECK Screening technology improves sorting performance in Electronic Waste recycling by Classifying (i.e. Screening) the Material flow into defined Particle sizes and removing interfering fines. This produces clearly defined fractions with a specific particle size from an unscreened mixture with a wide range of particle sizes. The equally sized parts are then separated by material using sorting equipment. The same size helps the sorting technology to better detect the individual components.
Fines must be removed from electronic scrap because they significantly impair the performance of the sorting technology used. The materials in the fines (e.g. sand, dirt, impurities) cause contamination in the sorting equipment, accumulate on larger parts and lead to incorrect rejections during electromagnetic, X-ray or sensor-based sorting. With the right Screening technology, the fines are reliably removed. A typical screening size here is 0 – 8 mm Particle size, which is screened off as fines.
The following materials, among others, are processed during Electronic waste recycling:
– Ferrous and non-ferrous metals
– Plastics
– Printed circuit boards and circuit boards
– Glass components
– Fine fractions from shredded composite materials
– Sand, dust and impurities
All of these materials must be specifically separated and processed in the Recycling process.
Classification, i.e. the screening process according to material size, is important in Electronic waste recycling because it separates the material stream into defined particle sizes. Modern sorting equipment can only clearly identify the materials and separate them precisely according to material components if the grain bands are uniform.
WEEE recycling is the processing of waste electrical and electronic equipment to recover recyclable materials such as ferrous and non-ferrous metals, plastics and circuit board components. The appliances are shredded, the shredded material is classified (screened) by size and then sorted mechanically and by material type using sensors.
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