Overhead stirrers

Overhead stirrers are designed for mixing medium to high viscosity liquids in volumes up to 40 liters. Unlike magnetic stirrers, overhead stirrers use an external motor with a stirring shaft, making them suitable for more demanding and viscous applications.

These models provide precise speed control, constant torque and reliable performance for chemical, pharmaceutical and industrial laboratory processes.

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Shakers, Mixers and Stirrers 

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Overview of overhead stirrers

ModelTypeMax. volumeDisplay
RSO-20AAnalog20 litersDigital speed indication
RSO-40AAnalog40 litersDigital speed indication
RSO-20DDigital20 litersBacklit display
RSO-40DDigital40 litersBacklit display

Typical applications

  • Mixing high-viscosity liquids
  • Dissolving solids in liquids
  • Polymer and emulsion processes
  • Chemical synthesis
  • Pharmaceutical and industrial laboratories

Main advantages

  • Powerful motor for higher viscosities
  • Precise speed control
  • Constant torque transmission
  • Suitable for volumes up to 40 liters
  • Stable operation during long-term use

Brand within this category

These overhead stirrers are supplied by Phoenix Instruments, a manufacturer known for reliable laboratory equipment with strong price-performance ratio and technical stability.

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