Drum Mixer

For barrel mixing and transfer

Product attributes

  • Mix and transfer inhomogeneous liquids in drums
  • Two manual control levers open and close the mixing ports
  • Allows liquid backflow for mixing back into the barrel
  • Mechanical seal for inner tube protects bearings from abrasive solid particles
  • PP version with unique steel cored inner tube for optimal driveshaft and seal support
  • Use with electric or compressed air motors
  • Handles max viscosity 1200 cP when using 800W or compressed air drive motors
  • Mixes liquids with max S.G. 1.8 with most powerful drive motors

The F 426 drum mixer is ideal for mixing and/or pumping inhomogeneous liquids. This pump can keep media moving that separate, even during pumping. Use a hand nozzle or blanking plug to close the pump discharge, then operate the F426 as a pure drum mixer. Turn the adjusting lever - the pump is easily adjusted to from mixing to pumping duties. The pump is easy to dismantle for rapid cleaning. Available in stainless steel 316 and polypropylene materials, with a choice of elastomer materials to suit any application. The stainless steel version is ATEX certified for use in hazardous areas.  1000 or 1200 mm long versions available for use with 200 litre barrels or 1000 litre IBC's.

FLUX can also supply pure drum mixers and barrel mixer tubesets, for when only mixing is required. These mixers are powered by our standard range of continuous duty electric and compressed air motors. For IBC mixing, see our dedicated IBC mixer webpage.

Technical data:

  • Flow rate: max. 240 l/min1
  • Delivery head: max. 13 mwc1
  • Viscosity: min. 1 mPas - max. 1200 mPas1
  • Outer tube diameter: min. 41 mm2 - max. 50 mm2
  • Immersion length: 1000, 1200
  • Materials outer tube: , Stainless steel
  • Media / Fluids: Acids, Alkalis, Petroleum products, Highly flammable media, Solvents, Fuels
  • Seal: with mechanical seal
  • Container: 200 l drums, 1000 l IBC


  • 3 operating modes in one drum mixer:
    - Transfer
    - Transfer with simultaneous mixing
    - Mixing only
  • Operator can switch functions during operation
  • Easy to dismantle for cleaning
  • Unique steel re-inforced inner tube on PP model for increased strength and stability at high temperatures
  • Can be run against closed valve e.g. hand nozzle, ball valve (until the max. operating temperature has been reached)
  • Stainless steel 316L ATEX certified version with choice of o-rings for handling low flashpoint, aggressive solvents
  • Can be used for continuous running, heavy duty operations

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