Mechanical Fine Screen

Efficient separation of screen materials in outlet boxes

The Mechanical Fine Screen from Stjernholm offers stable operation and a high percentage of solid particle separation within the medium. This step screen is installed in many different purification plants where it efficiently separates screen materials from the medium in outlet boxes.

It is activated by means of level regulation. Once the water line passes a predefined level, the engine is activated. The parallel screen bars, which are alternately fixated and moveable, are powered by a worm gear and ensure efficient segregation of screen materials.


When you cooperate with us, you know that we are focusing on delivering a solution to you that adds value to your facility.


  • Service life of 15-20 years with a calculated payback time of 3-7 years.
  • The absorption level within the process can lead to savings of up to 30% and other potential financial benefits.
  • Reduced number of service hours. According to experience, the self-purifying, automatic operation reduces time needed for inspection and maintenance with up to 2 hours per week.


  • Engines that fulfil EU requirements related to energy saving engines by law as of January 2017 contribute to reducing the total CO2 emission from the facility.
  • A higher degree of absorption of screen materials ensures better utilisation of fat and sludge in the next facility processes. That means less storage and transport and therefore less CO2 emission from the facility.


  • Service-friendliness and operational reliability contribute to minimising the need for staff to touch the waste water, creating better working conditions and reducing absenteeism due to illness.

Thomas Fleischer Christiansen

92 15 22 15

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Stjernholm A/S

Stjernholm A/S
Langelandsvej 4A
8940 Randers SV
CVR: 28 88 49 66
+45 70 20 25 05


Stjernholm US Inc

Post Oak Blvd.
Suite 1910
Houston, TX 77056 US
+1 346 388 2791