Overband magnet PMT

Products

Overband magnet PMT

The PMT type overband magnet is intended for removal of tramp iron from bulk materials transported on belt conveyors or vibrating feeders. The magnetic block protects mills, crushers and other process machines against damage caused by iron parts such as screws, pipe pieces, bearings or crusher teeth. The PMT magnet requires manual cleaning of captured metals.

The PMT suspended magnet is reliable and very robust. The magnet is characterized by high metal separation efficiency. The ferrite or neodymium permanent magnets have high coercivity, which makes them difficult to demagnetize. Therefore, the ovedrband magnet has a long service life.

Performance features of the overband magnet from Magnetix

  • Custom made overband magnet according to individual requirements.
  • Optimal adaptation to the width and speed of the conveyor belt.
  • Robust and durable design ensuring long service life.
  • Ferrite magnets or strong neodymium magnets.
  • Magnetic circuit with deep magnetic field and high flux density.
  • High coercive magnetic material.
  • Magnetic field range up to 500 mm in accordance with DIN VDE 0580.
  • Easy removal of captured metals using a rubber apron or metal scraper.
  • Operating temperature up to 150°C.

Applications of the permanent overband magnet

  • Separation of tramp metal from coal, granite, limestone, basalt and other aggregates to protect mills and crushers.
  • Removal of metal contaminants at particular stages of cement production.
  • Purification of grit, sand, flour and other mineral materials.
  • Removal of tramp iron from moulding sand.
  • Purification of cullet, rubber, plastics and other materials coming from recycling.
  • Purification of chips, shavings and other shredded wood materials.
  • Installation on mobile screens and crushers (light neodymium separators).


 

Suspended magnet during operation

Versions of the overband magnet

  • PMT-F type suspended magnet
    Made of ferrite magnets with a deep magnetic field.
  • PMT-N type suspended magnet
    Made of powerful neodymium magnets with high flux density.
  • SE type overband electromagnet
    Consisting of a DC electromagnet with a high-range magnetic field.


 Suspended magnet accessories

  • Metal scraper (option).
  • Power supply and control cabinet (for electromagnet only).
  • Supporting structure with adjustable chain slings.

Working principle of the overband magnet

The magnet is usually suspended on a special support structure above the conveyor belt transporting the material. There are two ways to suspend the magnet - transversely to the direction of the transported material or longitudinally above the conveyor drive drum. The magnet attracts ferrous metals contained in the transported material, which stick to the rubber apron. Cleaning the magnet involves removing the apron from the magnet. Optionally, the magnet can be equipped with a metal scraper that facilitates cleaning.

Why choose our overband magnets?

Overband magnets are available in two variants, with ferrite or neodymium magnets. The magnetic systems produced are made of the highest quality magnetic materials using innovative technologies implemented by Magnetix. In addition to the standard catalog offer, it is possible to design and produce a permanent magnet to individual order. To facilitate the process of cleaning the magnet from captured metals, the magnet is standardly equipped with a rubber apron or a scraper made of austenitic steel. The entire production process takes place at our headquarters, without the involvement of external companies, thanks to which we complete orders entrusted to us within very short deadlines.

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