Electrostatic Separation

Hamos is a German manufacturer of electrostatic separation technology for the recycling industry. Through years of research and development, hamos has positioned itself as one of the leaders in the materials separation industry. Hamos’ unique electrostatic separation system has not only opened the door to new applications previously thought impossible, but has also improved the performance of previous material separation processes. Today there are hundreds of hamos EKS (Plastic/Plastic Separators) and KWS (Metal/Plastic Separators) around the world all providing efficient separation technology and proving hamos’ name as one of the frontrunners of the plastics machinery industry.

Hamos- Advanced Separation Technologies
  • Dry separation process
  • High product purity
  • Separation process independent of density or color
  • Flexibility – one machine for dozens of plastics mixtures
  • High yield
  • High throughput
  • Efficient energy consumption


  • Mixtures of metal and non-conductive materials
  • Cable waste (CLICK to watch video)
  • E-waste
  • Grinding dust
  • Aluminum-plastic composite materials
  • Other conductive/non-conductive mixtures


Don’t run plastic/plastic mixtures? Well don’t worry because hamos has a solution. The KWS can even separate plastic/metal mixtures such as e-waste with no headaches.

The hamos KWS separates conductive from non-conductive materials. The mixture is introduced via vibrating conveyor to a rotating metal drum. Inside this process is also a 35,000-volt electrode that is constantly charging the materials. The metal loses it’s charge very quickly to the drum and is ejected by the rotational momentum, while the plastic loses it’s charge much slower, allowing for a very clean separation of the different materials.

For proper processing, hamos systems require a few different parameters to work best. There must be two distinct and separate materials in the mixture (no composites), the material must be dry, dust free, and have a particle size of ~10mm.


Hamos offers complete turnkey solutions for recycling applications. Hamos not only supplies electrostatic separation technology but also material handling, transport and packaging modules for the fully automated operation of a three-shift system. This includes plant building for certain applications such as e-waste (hamos KRS) or post-consumer PVC windows and window profiles (hamos WRS.)

Hamos’ design principles include plant up-time, low maintenance, low operational supervision, and economically efficient operation as well as high purity output fractions.

hamos WRS

The combination of the hamos EKS electrostatic separator and the SEA PIXEL color sorter woks to economically recycle PVC profile waste and post-consumer PVC windows. Almost all seals (rubber, plasticized PVC, etc.) are separated from dust free material streams of PVS windows with the hamos EKS. Following this step is a SEA PIXEL electric color sorter which enhances the purity and improves the whiteness of the PVC. Purities of over 99.95% can be achieved with this unique combination of complimentary machinery.

hamos KRS – WEEE Plastics

Hamos supplies the KRS plastic recycling system for the processing of plastic mixtures from WEEE and refrigerators, which allows this system to create high purity fractions of PS, ABS, and PP. Even black-black plastic mixtures are no problem.
The KRS works best in conjunction with a sink-float or similar prior separation process.

  • Hamos KRS plastic recycling system for the processing of plastic mixtures from WEEE and refrigerators
  • Hamos KRS Plastic Recycling System - eFACTOR3
  • Hamos KRS Plastic Recycling System - eFACTOR3
  • Hamos KRS Plastic Recycling System - eFACTOR3

hamos WRS

hamos KRS

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