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Mechanical Water Filtration and Screening Equipment

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Sepänkatu 2,
FI-39700 Parkano,
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Kopar, a Finnish engineering and manufacturing company, specialises in mechanical water screening and filtration systems. Kopar’s water treatment equipment consists of automated bar screens, travelling basket filters and drum basket filters.

Water screening benefits all industries where large amounts of cooling or process water are needed. Kopar’s clientele include:

  • Power plants, especially condensing power plants
  • Oil refineries
  • Pulp and paper mills
  • Chemical process plants

The mechanical filters supplied by Kopar are also used as the first process phase when surface water is pre-filtrated in municipal or industrial high-quality water plants.


The grid of the bar screens supplied by Kopar is designed to prevent clogging. The trash collected on the grid is automatically removed at intervals by the cleaning rake. The cleaning phase of the bar screen is switched on by pressure sensors or timers.

A river water screening, with a total capacity of 13,000m³/h, in a peat-fired condensing power plant in Ireland.
A drum basket filter for micro screening of water, with a capacity of 2,500m³/h, in a paper mill in Italy.
A sea water filtration station in a 550MW bio-fuel power plant in Finland, consisting of one bar screen of 31,800m³/h, and two travelling basket filters, each 16,800m³/h.


If water is taken directly from a river, lake or sea by gravity flow, travelling basket filters are recommended for the treatment, especially if there are large fluctuations in the water level.

The filter screen has a mesh size from 0.2mm to 3mm, depending on the purpose. The screen is made of stainless steel or plastic material. The travelling basket filters supplied by Kopar have a capacity of 1,800m³/h to 50,000m³/h.


Drum basket filters are used when a high degree of mechanical purification is required.

These filters have proven their reliability in a large number of installations worldwide. They are able to separate particles down to 20µm, and the mesh of the filters is selected according to the requirement.

The largest drum basket filters supplied by Kopar have a capacity of 4,800m³/h.


Kopar has a long history as a manufacturer of process and material handling equipment for the non-ferrous smelter industry. Kopar drag chain conveyors are ideal in transporting hot powdered and dusty materials. Drag chain conveyors are built with forged conveyor chains, and are the correct choice for transporting hot and abrasive materials.

Kopar’s range of equipment for the smelter industry also includes anode furnaces, converters, rotary dryers and granulation plants.

White Papers

Press Releases

  • Kopar Releases New White Paper

    Kopar is a leading manufacturer of ash handling systems for the power industry, in addition to equipment for elevation and storage

Kopar Oy
Sepänkatu 2
FI-39700 Parkano

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