Agitators

Impellers

The heart of the process design of agitators

Impeller Designs

In industrial process engineering, choosing the right agitator is crucial for the efficiency and quality of production processes. Whether homogenising, dispersing, suspending or heat transfer – each process places specific demands on the agitator used and its impellers.
 

Impellers have a significant influence on the flow behaviour, energy input and mixing quality within the fluid. They are therefore the central element in the design and optimisation of agitators in mixing technology. Precise coordination of the impellers with the respective process parameters is essential to ensure high process reliability, efficiency and product quality.

PRG's impeller designs are individually tailored to your specific requirements and adapted as necessary. This allows you to benefit from customised solutions based on state-of-the-art mixing technology and many years of experience in process engineering.
 

Put your trust in PRG – your partner for powerful, reliable and innovative agitators in industrial process engineering.

Dissolver Discs

  • Very high local shear forces
  • Dispersion of solids
  • For low-viscosity to high-viscosity applications

Propeller stirrer

  • Gentle product flow from top to bottom (axial)
  • Low shear possible, little product stress

Anchor

  • Agitator close to the wall, good heat transfer from the tank wall into the product
  • For high-viscosity media
  • With and without wall and bottom scrapers
  • Special anchor shapes with additional product flow possible

Butterfly

  • Increase of the gas retention time in the product
  • Axial flow direction downwards
  • High pump volume flow with low product damage

U-Z

  • Gentle product flow
  • For simple mixing tasks, keeping the product homogeneous
  • Adapts to the tank bottom to mix small residual quantities

Disc Stirrers

  • Dipersion of gas bubbles
  • Radial flow direction
  • High power input
  • Enables high mass transfer rates

Elephant Ear

  • Very gentle axial flow – possible both upwards and downwards
  • Gentle mixing action for cell cultures

     

Pitched-Blade Turbine

  • Axial direction of flow downwards
  • Installation position: from above
  • Good power input into the fluid with large tank volumes
  • Single-stage mixing system (near bottom)

Trapezoid Stirrer

  • Efficient power input into the fluid with large tank volumes
  • Mainly axial flow direction downwards
  • Multi-stage stirring system (2-5 stages)

Spiral Anchor

  • Agitator close to the wall, good heat transfer from the container wall into the product
  • For high-viscous products
  • With and without wall and bottom scapers

Hollow-Blade

  • Lower power input due to optimised mass transfer at reduced resistance
  • High mixing performance and high gas throughputs
  • High mass transfer coefficients

Segment Impeller

  • Very gentle axial flow – possible both upwards and downwards
  • Gentle mixing action for cell cultures
  • Lower power requirement than elephant ear
  • Optimised cleanability compared to elephant ear

Are you interested in our impellers? Your point of contact in this area is:

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Matthias Ridder

Head of Sales

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