Metso Outotec ups the pumping ante with its MDM900

Posted by Daniel Gleeson on 24th January 2022

Metso Outotec has released its largest mill discharge pump to date, the MDM900, in a move that will see it compete for orders from the highest throughput processing operations in the world.

The MDM900 is the latest addition to Metso Outotec’s flagship Mill Discharge (MD) pump series, a pump designed for heavy-duty use in concentrator plants, where capacity and wear resistance are very important.

The MDM900 is an all-metal, thick-walled, extra heavy-duty pump designed specifically for extremely arduous mill duty applications. Its release comes less than a year after Metso Outotec officially launched the MDM800, which was then its largest metal pump model size.

Coming with an inlet size of 900 mm (36 in), the MDM900 is designed for flows up to 13,500 cu.m/h and heads up to 40 m. It is fitted with a FR2100 frame and has an impeller diameter of 2,100 mm.

Diwakar Aduri, Product Manager for MD Pumps at Metso Outotec, said: “Slurry handling is vital in maximising a minerals processing plant’s productivity and efficiency. The advanced design of the MDM900 enables minimised slurry velocities in the pumps, thus reducing the rate of wear significantly. This translates to increased uptime and productivity for our customers.

“We are also proud to have implemented many environmentally sustainable design initiatives in the MDM900 pump, which is part of our Planet Positive offering, as are all our MD Series pumps.”

Examples of these “environmentally sustainable” features include the reduced footprint of the MDM900 and its standard low-flow shaft seal to minimise the pump’s freshwater requirement during operation, Aduri added.

Metso Outotec MD Series pumps have been designed to match a mill’s uptime. They come in two tailored solutions, MDM and MDR. The MDM (Mill Discharge Metal) pumps are available in inlet size ranges of 250-900 mm, and the MDR (Mill Discharge Rubber) models come in inlet size ranges of 250-700 mm. Both pump types are suited for heavy-duty use in concentrator plants offering excellent resistance to abrasion and erosion, according to the company.