Sulzer announces the launch of the world’s biggest medium-consistency pump



The new MCE93-400 pump size is Sulzer’s answer to the customers’ demand for bigger production rates in pulp mills. Pumping of liquids with a high dry solids content, referred to as medium consistency (MC), is essential for the processes in the pulp and paper industry. In recent years, the production rates of the industry have increased remarkably. Sulzer developed the biggest MCE pump size for a customer project with record-breaking values.

The MCE pump is being tested at Sulzer’s full-scale R&D center in Kotka, Finland.

The capacity of the pump reaches

  • up to 10’000 ADMT/d (air dry metric tons per day),
  • the flow up to 940 l/s and
  • the head up to 180 m.

The MCE pump is designed for the common consistency range of 10 – 12 % and a pressure rating of 25 bar.

“The new MCE93-400 medium-consistency pump size is an excellent addition to Sulzer’s MC equipment offering. It has been designed to operate very efficiently, thus saving energy, water, and chemical costs in the pulp and paper mill processes. The unique and innovative design features of the pump minimize its life cycle costs,” says Jussi Heinonen, Product Manager for MC equipment at Sulzer.

The MCE93-400 pumps are manufactured at Sulzer’s factory in Kotka, Finland. The first big MCE pumps have been dispatched to a major pulp manufacturer in South America.


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