Daum screen

The daum screen from Stjernholm concentrates separated sludge from 0.5% dry matter to more than 12% dry matter

The daum screen from Stjernholm is highly suitable for installation in any facility where sludge concentration and dry matter levels are to be significantly increased.

The daum screen is constructed as a closed casing with a drum mounted with a stainless steel perforation. The drum rotates on 4 wheels; 2 pulling wheels and 2 supporting wheels. A gear motor powers the drum through a shaft on 2 wheels. The motor is joined with a frequency converter.

The daum screen is designed for continuous operation and is equipped with large hinged lids for easy inspection and service of the daum screen.

Get brochure


Service-friendliness and operational reliability contribute to minimising the need for staff to touch the waste water which leads to better working conditions and reduced absenteeism due to illness.


  • Service life of 15-20 years.
  • Automatic operation reduces the need for man-hours for inspection and maintenance.


  • New, updated, eco-friendly electrical engines fulfil the EU requirements and contribute to reducing the total CO2 emission level of the facility.
  • Better particle filtration in the medium or sludge concentration leads to better operation processes and thereby less CO2 emissions from the facility.


  • Servicevenlighed og driftssikkerhed er med til at minimere driftspersonalets berøring med spildevandet, hvilket giver bedre arbejdsforhold og er med til at reducere sygdomsfraværet.

Follow us

Stjernholm A/S

Birkmosevej 1
6950 Ringkøbing
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