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Pastorenkamp 31, 41169 Mönchengladbach
Telephone +49 2161 90108-0
Fax +49 2161 90108-20

Hall map

METEC 2019 hall map (Hall 4): stand G11

Fairground map

METEC 2019 fairground map: Hall 4

Our range of products

Product categories

  • 01  Plant and equipment for processing prime and raw materials
  • 01.02  Ore dressing
  • 04  Plant and equipment for non-ferrous metal production
  • 04.02  Refining


  • 04  Plant and equipment for non-ferrous metal production
  • 04.03  Smelting


  • 04  Plant and equipment for non-ferrous metal production
  • 04.04  Hydro-metallurgy, electrochemistry

Hydro-metallurgy, electrochemistry

Our products

Product category: Ore dressing


ENGINEERING DOBERSEK GmbH delivers separation plants for separation and classification of solid materials for various applications. The ContiClass®System patented by ENGINEERING DOBERSEK GmbH provides continuous classification of ores. An essential precondition for perfect separation is constant pressure at the hydrocyclone inlet. The ContiClass®System is designed to enable pressure variations to be counterbalanced by a speed-controlled pump. As an additional effect the pump lifetime is extended tenfold, because, amongst further positive effects, cavitation is avoided. 

A regular problem in ore treatment plants is that constant ore feed cannot be guaranteed. In order to counteract feed variations, mills and pumps have to be switched on and off. This is not necessary for those plants equipped with the ContiClass®System delivered by ENGINEERING DOBERSEK GmbH. 

Separation plants are mainly used for non-ferrous, precious and heavy metal extraction. To digest extracted ore, e. g. nickel or copper, the ore is ground in ore mills and mixed with water in order to achieve a pumpable suspension. For perfect digestion of the contained metal a particular grain size is necessary. However, after grinding the grinding the ore grain sizes vary strongly and cannot be easily altered.
The ContiClass®System solution for a profit-increased extraction of non-ferrous, precious and heavy metals (like copper, nickel, zinc, gold) as well as of mineral ore (phosphates) is increasingly used by our customers. Other possible applications are mine refilling, silica sand extraction and coal treatment.

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Product category: Hydro-metallurgy, electrochemistry

Full Line Supplier Services

ENGINEERING DOBERSEK GmbH is a “full line supplier” of turnkey installations for metallurgy, specialized in engineering, design as well as erection and commissioning of complete plants for extraction of non-ferrous and precious metals, like e. g. copper, lead or gold. These metals are extracted from primary materials like ore, concentrates and intermediates.

Together with our customers we develop and realize integrated plant concepts using processes and aggregates for pyrometallurgical (e. g. melting and refining furnaces) and hydrometallurgical metal extraction(e. g. copper refinery). Planning and implementation also includes all necessary devices for the supply of process materials (water, pressed air, fuel, oxygen …) and electrical engineering.

Due to the substantial know-how of their personnel, ENGINEERING DOBERSEK GmbH is able to supply all peripheral installations necessary for plant operation, starting from heat recovery via burnt gas treatment up to cleaning. All installations are designed under consideration of country-specific and governmental obligations.

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Product category: Ore dressing


This unique design allows separate cleaning of granular and slurry fraction in one machine.

This device can be used for mechanical activation of non-ferrous and ferrous metal ores as well as for coal or other mineral resources whose particles have been in prolonged contact with the liquid phase and flotation agents.

ContiMAC is used before desorption, before selective separation of concentrates and before subsequent cleaning in the extraction of the finished concentrate.

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About us

Company portrait

Your professional partner for plant engineering!
ENGINEERING DOBERSEK GmbH is a leading German specialist company for planning, constructing and commissioning of turnkey plants and plant components in the fields of mining and metallurgy, water treatment, power and environmental engineering as well as chemical and special plant engineering.

The continuously growing, midsize family-owned company with its head office in Moenchengladbach, Germany, was founded in 1983 by Dr.-Ing. Albin Dobersek and Tatjana Dobersek. In the year 1989 the company form changed into a German "GmbH".

Our main scope of activities is in Eastern Europe and Central Asia. With our sales offices in Kazakhstan, Macedonia, Russia, Serbia and Uzbekistan we maintain close contact to our customers.