Agitators in comparison

Which agitator is suitable for which application

The agitator is one of the most important elements of any mixing process. It determines how efficiently a medium is moved, how much energy is required and whether a product is processed homogeneously, gently or particularly intensively.

Nevertheless, in practice, attention is often only paid to speed or motor power. However, the geometry of the agitator can change the entire process.

Agitators in comparison

Which agitator is suitable for which application

Nevertheless, in practice, attention is often only paid to speed or motor power. However, the geometry of the agitator can change the entire process.

Agitators in comparison

Which agitator is suitable for which application

Nevertheless, in practice, attention is often only paid to speed or motor power. However, the geometry of the agitator can change the entire process.

Not every agitator is suitable for every application

Every mixing process has a different goal. Some applications require:

strong upheaval
High shear forces
Particularly gentle stirring
Minimal foaming
or safe mixing of highly viscous media

This is why there are different agitators with different flow profiles.

Not every agitator is suitable for every application

Every mixing process has a different goal. Some applications require:

strong upheaval
High shear forces
Particularly gentle stirring
Minimal foaming
or safe mixing of highly viscous media

This is why there are different agitators with different flow profiles.

Practical note:
Propeller agitators are only suitable for highly viscous media to a limited extent.

Practical note:
Often not the optimal solution for sensitive or highly foaming media

Practical note:
Pay attention to possible dead zones - especially with complex container geometries or highly viscous media.

Practical note:
Do not set the speed too high - especially with sensitive media or if air entrainment is to be avoided.

Practical note:
A homogeneous stirring result can also be achieved in the IBC with hinged stirrers.

Practical note:
The right design, taking into account the tank geometry and wall distance, is particularly important here.

Peripheral speed instead of just rotational speed

Many users only compare the speed of an agitator. However, the decisive factor is the circumferential speed at the outer edge of the agitator. This is because: larger diameter, same speed → significantly higher load on the medium The circumferential speed directly influences shear forces, energy consumption, mixing behavior, air entrainment.
Read more about this here: „What a difference a few millimeters can make“

Peripheral speed instead of just rotational speed

Many users only compare the speed of an agitator. However, the decisive factor is the circumferential speed at the outer edge of the agitator. Because: larger diameter, same speed → significantly higher load on the medium

The peripheral speed directly influences shear forces, energy input, mixing behavior and air intake.

You can read more about this here:
„What a difference a few millimeters can make“