Star-shaped hopper magnet SM

Magnetic separator of a star design for the hoppers of injection moulding machines is intended for the separation of iron tramp from free-flowing dry materials (such as regranulates, crushed plastic materials, plastic crumb, rejected mouldings etc.). The hopper magnet protects the moulding machines (with standard cone hoppers) and other processing equipment from damage by ferromagnetic particles. While the bulk powder material falls through the hopper magnet, a very strong magnetic field (generated by neodymium NdFeB magnets of the hopper magnet) traps all metallic particles on the surface of the neo magnets. Thanks to the magnets made from rare earth ores the magnetic impurities captured on the tubes are not carried away by the stream of the continually poured material (what happens in case of separators fitted with weaker black ferrite magnets).
During the cleaning procedure the magnetic separator is taken out of the hopper and the captured ferromagnetic particles are removed either mechanically or by a stream of compressed air. The star-shaped hopper magnet is very effective, but also easy to install and transport (from one application place to another), practically maintenance-free and inexpensive to acquire and operate. The design as well as the size of the star-shaped hopper magnet for plastic extrudes & injection moulding machines can be adjusted to client's requirements. The hopper magnets find use e. g. in recycling and plastic industry.


  Magnet Type A (mm) H (mm)
SM 200 Neodymium NdFeB 200 200
SM 250 Neodymium NdFeB 250 200
SM 300 Neodymium NdFeB 300 200
SM 350 Neodymium NdFeB 350 200

  Magnet Type A (mm) H (mm)
SM 150 Neodymium NdFeB 150 130

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Magnetic force (induction) generated by the extremely strong permanent magnets from rare earth ores does not let through any unwanted ferromagnetic impurities – and that is why the application options of our products are nearly unlimited (they find their use in chemical, plastic, automotive, building and pharmaceutical industries, food processing, mining etc.).

Our company goal is not only to manufacture and deliver a product, but above all to find and offer an exact solution satisfying the requirements and needs of just YOUR company. In these days of rapid changes in technology it is very difficult to keep up with the latest trends even in the field of your own activity, not to mention other industrial or foreign branches. And that is why we offer you our technical support based on our know-how and our experience. We hope that you - as well as our present clients - will also appreciate our assistance with solving problems regarding the separation of magnetic particles from your products, that we will help to protect your expensive machinery and that our solutions will make your production process even more fluent. If you are looking for a solution of a problem with separation or detection of ferromagnetic impurities in your goods, do not hesitate to contact us. We can help you.

Free magnet audit

Free magnet audit is an exceptional service thatSollau_serviceman.jpg

  • checks the function of the magnetic separator (if the tramp metal is effectively trapped)
  • examines if the magnetic separator fulfils its potential and meets application requirements
  • evaluates the effective pull, the status, the location and the cleanness of the applied magnets

During the audit, we do not only inspect your magnetic equipment, but we also

  • provide training on care and maintenance of magnetic separators
  • suggest the measures to be taken in order to improve the operating efficiency of the magnetic separation related to your products and materials
  • identify the key areas in your company where the application of magnetic separators could enhance the operating performance, reduce operating costs, purify the product or protect processing equipment from metal damages

Audits are conducted by SOLLAU specialists that - in co-operation with the client - develop an audit plan and determine priorities. During the audit, the auditor physically inspects and measures the effective strength of the magnetic separator. He also photographs and documents the state of the device. After the check is completed, the auditor issues a detailed report including the results of the effective strength findings. The inspection results are also important references for internal quality assurance and help analyse biological, chemical and physical hazards (HAACP) as well as ensure high quality production (QA).


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Phone +420 576 013 873

SOLLAU s.r.o.
Hrivinuv Ujezd 212
763 07 Velky Orechov
Czech Republic

VAT ID: CZ29261759

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