Stainless steel separator SNS


Stainless steel separator SNS

The SNS type stainless steel separator is designed for automatic separation of alloy steels from bulk or crushed materials.

The SNS high-induction separator is reliable, very robust and suitable for continuous operation. It is characterized by the highest separation efficiency of stainless steel. The powerful neodymium magnets used in the highly inductive magnetic pulley have high coercivity, making them difficult to demagnetize. Therefore, the SNS separator has a long service life.

Performance features of the stainless steel separator

  • Custom made stainless steel separator according to individual requirements.
  • Robust and durable design for continuous operation 24/7 under difficult working conditions.
  • Working width of the separator up to 2000 mm.
  • Highly inductive magnetic pulley made of powerful neodymium magnets.
  • Adjustment of operation parameters with frequency inverters.
  • Corrugated sidewall conveyor belt with increased durability.
  • Accessories from leading manufacturers.

Applications of the high-induction separator

  • Recycling of electronic waste (E-waste).
  • Separation of stainless steel in the plastic recycling process.
  • Disposal of cars and household appliances.
  • Removing stainless steel from glass cullet.


Stainless steel separator during operation

Working principle of the stainless steel separator

The material to be separated is fed to the separator's conveyor belt continuously and evenly using a vibrating feeder. The belt conveyor is equipped with a highly inductive magnetic pulley that generates a very strong magnetic field. Weakly magnetic pieces of stainless steel are captured by the magnetic field and held on the conveyor belt, while the magnetically neutral material falls freely from the conveyor. Pieces of stainless steel fall off the belt at the point where the belt no longer adheres to the pulley, either under the influence of gravity or with the help of cleats located on the belt. The operation of the separator is additionally supported by an adjustable splitter located under the pulley.

Why does stainless steel become magnetic?

Some stainless steel alloys are weakly magnetic or become weakly magnetic for a short period of time as a result of changes in the microstructure of the steel resulting from grinding of the material. This happens due to the transformation of the austenitic phase into martensite, which is ferromagnetic. This phenomenon depends largely on the chemical composition of the steel, in particular on the share of elements stabilizing the austenitic phase. Rust appears on bent and frayed pieces of stainless steel, indicating a change in the microstructure of the steel. In this way, the pieces of stainless steel become weakly magnetic and can be attracted to the very strong field generated by the highly inductive magnetic pulley.

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