hamos FFS - Metal separators for pneumatic conveying systems

The solution for pneumatic conveying systems

hamos FFS series electronic metal separators detect and remove metal particles from bulk materials transported in suction and pressure conveying systems. Metal detection and separation takes place "on the fly" at conveying speeds of up to more than 30 m/s. Depending on the type of conveying (pressure or suction conveying, continuous or intermittent), specially adapted separation mechanisms are used. During the entire metal separation process, the conveying pressure is maintained in the system.

In addition to ferrous metals, hamos FFS separators detect and remove all non-ferrous metals. Products, machines and tools are thus safely, reliably and cost-effectively protected from damage caused by metal contamination.

Operating principle

The product to be demetallized is pneumatically conveyed through a metal detection coil. If a metal particle is registered in the process, the separator in the metal separator opens. The product flow is briefly diverted and the metal falls together with a small amount of product into the separation container.

In all air-assisted pneumatic conveying processes, both the flow velocity in the conveying line and the system overpressure or underpressure in the metal separator and the conveying line remain almost constant. This means that product conveying is not interrupted during the separation process.

In the case of hamos FFS-L series units for use in discontinuously operating vacuum small conveying systems, the contaminated material is discharged after the end of a conveying cycle via an elastic valve flap.

In hamos FFS-P series devices for continuously operating vacuum or pressure conveying systems, interruption of the conveying flow during the separation process is prevented by a double sluice formed by two shut-off valves connected in series.

Your advantages

  • Protection of machines, tools, products
  • Use with continuously or intermittently operating systems
  • For suction or pressure conveying systems
  • Maximum throughput corresponds to the conveying capacity of the pneumatic conveying system
  • Special separation mechanics prevent collapse of conveying pressure and flow
  • Self-monitoring with diagnostic system
  • Customized connection flanges
  • Integrated electronics
  • Proven technology
  • Almost maintenance free


For example, if you

  • Plastic granules
  • Plastic regrind
  • Powder / dusts
  • Chemicals
  • Pharmaceuticals
  • Recycled materials
  • Food
  • Feed
  • Other bulk materials

in pneumatic conveying systems, the hamos FFS is the ideal device for detecting and separating metal parts.

Professionals work with professionals

After 21 years of operation, our experience with the hamos WRS window recycling plant is very positive. The plant is an important part of our process. It helps us to achieve our targets. It guarantees the highest quality required for the PVC and thus increases the overall performance of our process. The hamos plant is indispensable and "closes our recycling loop."

- Bodo Streubel, Operations Manager of Dekura Bad Schmiedeberg

We are very satisfied with the standard hamos GmbH has achieved. Previously, it was not possible to sort PVC from profile sections and production remnants fully automatically to this high standard of quality and purity. This development has helped us to completely close the material loop in window profile production. A new world-class standard was born.

- Jörg Ipfling, Manager Recycling Technology Window Solutions at Rehau

The electrostatic recycling systems of HAMOS make a very important contribution to the recycling process of PVC windows due to their good separation performance.

- ppa. S. Lengnick, Production Management, VEKA Umwelttechnik GmbH

The separation systems supplied by hamos are an essential part of ensuring the highest quality of products supplied by Metal-Plast to the market. By using hamos solutions we have increased the processing capacity of our plant and the products manufactured by Metal-Plast are of the highest quality.

- Grzegorz Jasiński, Chairman of the Board


For more information, please download our product brochure.

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