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About Us

Tianjin North Star Technology Co., Ltd. is a professional equipment manufacturer dedicated to the magnetic separation industry. Relying on the international leading magnetic separation and vibration conveying technology, it aims at designing and manufacturing high-performance equipment to provide the industry with high-performance and high-quality designed magnetic sorting, magnetic automation and vibration conveying equipment. With rich application experience in professional and technical fields, we can solve the problems encountered in product processing, purification and quality review for enterprises.

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Electromagnetic Suspended Magnets

Electromagnetic Suspended Magnets

Suspended electromagnets have a deeply penetrating magnetic field and are therefore suitable for very thick layers. It can couple with various of belt conveyors, vibration conveyors or chute to remove small pieces of iron from moving materials to purify materials and protect downstream equipment.

Suspended electromagnet, excited by DC electric, is a heavy duty separator with unique magnetic circuit design. It can achieve the most effective magnetic field distribution and maximum magnetic field depth and is designed for removing iron over a moving bed of material. Basically, they are box-shaped units with inside electric magnet material to produce a powerful magnetic field. To achieve maximum separation, it is important to optimally match the size of the block magnet (main pole) and the the speed of material conveyor belt.

Design principle

Suspended electromagnet is essentially a DC electromagnet. Its excitation coil generates a strong magnetic field during the energization process and absorb the ferromagnetic materials from non-magnetic materials. The electromagnetic system applys a unique design of high gradient magnetic circuit to achieve the most effective distribution of magnetic field, which enables the electromagnet produce the largest stable magnetic field in its working space.

Characteristics and advantages

  • Powerful magnetic attraction, low energy consumption, good heat dissipation and insulation
  • Compact and reasonable structure, easy installation
  • Stable and reliable performance, trouble-free for long-term operation
  • Unique expansion tank design effectively prevents coil from damage
  • Suitable for a variety of harsh environments
  • Its belt has automatic correction function

Optional configuration

  • Variable magnetic systems and specifications to match user needs
  • Cooling method: natural cooling, air cooling or oil cooling, etc.
  • Unloading method: manual-cleaning or self-cleaning
  • Installation method: in-line the belt or or across the belt
  • Box material: stainless steel plate or manganese steel base plate according to requirements
  • Optional dust cover, zero switch, deviation switch, special belts, etc.


Automatic separation and discharge of Fe particles from large streams, recovery (recycling) of ferrous particles, prevention of damage to machines by metal particles.

Material handling

Metallurgy, mines, coal preparation plant, power station, ceramics, glass, cement, building materials, chemicals, food, feed, recycling