Electrostatic charging has long been used to separate materials. Hamos Advanced Separating Technologies from Penzberg Germany has the know-how to make plastics metal-free on the one hand and to separate plastics by type on the other.

Hamos EKS

The Hamos EKS separator sorts plastics by type regardless of their color. The machine is available in single and double versions with processing capacities up to 1,500kg/h. This sorting technology is extremely suitable for fine granulates or grinding materials.

Working Principle:

The material is electrostatically charged via a vibrating table. Then the material passes onto a belt where a high voltage attracts or repels certain particles depending on the type of plastic.


Recovering filled PP from a zinc fraction, Separation PP-PE, Separation PP-PS from clothes hanger, …

Advantages of the Hamos EKS separator:

  • works perfectly on materials 0-10mm
  • separation on type of plastic regardless of color
  • compact set-up
  • almost no maintenance
  • easily adjustable

Hamos KWS

The Hamos KWS separator removes all metals from various types of fine material flows. The machine is available in single and double models with a processing capacity of up to 1,500 kg/h.

Principe de fonctionnement

Les métaux et les non-ferreux sont chargés électrostatiquement par une électrode haute tension. Le métal perd sa charge sur un tambour de séparation avant d’être éjecté. Les non-ferreux adhèrent au tambour et sont enlevés par une brosse.

Principle of operation:

Removal of residual metals from plastic flakes, removal of wood and rubber from plastic flakes, …

Advantages of the Hamos KWS separator

  • works perfectly on materials 0-10mm
  • removes all metals (also stainless steel)
  • compact set-up
  • practically no maintenance
  • easily adjustable

Metal detectors for plastic granules or grinding materials

To prevent contaminated granulate or grinding material from ending up in your extruder or injection moulding machine, good metal detectors are extremely important.

The Hamos fully automatic metal detectors ensure that metals do not disturb the extrusion or injection moulding process. They are available in various shapes and designs depending on the place where they are installed. Both iron and non-ferrous metals are separated without problems. We can even remove difficult to separate stainless steel from your plastic granulates without any problems. Your machines are thus perfectly protected. This sorting technology can also be used in plastic recycling.

Below you will find all our possible sorting technology systems. We also offer more complex separation systems for plastic recycling. Feel free to contact us. 

Fall stream separator HS

This fully automatic metal detector is placed in a trap pipe. A sensor detects the metal particle and this particle is automatically discharged.

PSS metal separator

This is the little brother of the Steinert ISS sensor separator. A detector sees all the metal particles and with a blast of compressed air these metal particles are ejected from the granulate. This is a fully automatic separation. Ideal for granlometries up to 30 mm and a processing capacity of 250-400 kg/h. This principle is also used in plastic recycling. Also take a look at sensor separation.

Metal separator FFS for pneumatic transport

This fully automatic metal detector is built into the pneumatic line and extracts all remaining metal particles without any problems.

Last Chance Separator LCS

To ensure that no metal particles enter the injection moulding machine, the Last Chance Separtor is used. The name says it all: it removes the remaining metal particles from the granulate as a last resort.


Remove metal parts in a pneumatic conveyor, remove metal parts on the inlet of the extruder, remove metal parts in plastic recycling, …

Advantages of the Hamos metal detector

  • Works perfectly on plastic granulates
  • Removes metals in a simple way
  • Works fully automatically
  • Stainless steel is also removed
  • Almost no maintenance
  • Easy to adjust