Metso Full portfolio Flotation Drive Unit Upgrade
Improve energy efficiency and power transmission for high-capacity cells, as well as reducing maintenance requirements and overall lifetime equipment costs, with the Metso Drive Unit Upgrade.

Upgrades that improve performance to help you reach your sustainability targets

Reduced energy consumption


eDrive direct-drive gearboxes improve efficiency and use less energy

Lower environmental impact


The eDrive complies with all environmental regulations relating to noise levels and lubricant usage


Ease of maintenance


The eDrive unit requires an oil change every 1-3 years, depending on the lubricant

Increased safety


The design avoids oil leaks and protects your process from contamination

  • Tailor-made gearbox for each specific application
  • Smaller environmental footprint
  • Low maintenance requirements
  • Long service life of critical wear parts
  • Higher availability
  • Improved energy efficiency and power transmission
Flotation Drive Unit Upgrade

As ore grades decline, the need for higher-capacity flotation cells (with volumes of 70 m³ or more) continually increases, in order to process a larger amount of ore to achieve the same level of metal output.

Cells with large volumes require a relatively large mixing mechanism, which in turn requires more torque from the drive unit. The increased torques cause traditional v-Belt drives to become less effective as they consume more power and greater wear of critical parts. They also have inferior power transmission compared to gearbox-driven drives.

All new Metso high-capacity flotation cells are supplied with Outotec e-Drive units. Replacing the belt-driven drive units in higher-capacity cells with the Outotec eDrive direct-drive gearboxes will improve equipment efficiency, makes maintenance easier, and reduces the overall lifetime costs.


  • 4-pole electric motor
  • Air feed, gearbox, and drive rack
  • Bearing-unit temperature sensors
  • Oil temperature and pressure sensors
  • Installation and start-up services

Value calculators & recommender tools

Reaching your sustainability targets?
Find out how our flotation, thickener and analyzer services help to achieve your sustainability targets
Flotation drive unit upgrade leaflet
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