Introduction of Batch High Shear Mixer

Batch high shear batch mixer is a new type of high efficiency mixer. Compared to an usual agitator, it is many times more efficient on mixing. On its work head, there is a pair of stator and rotor. The stator and rotor form a scissor-like bite between them and the rotor blades have a shape similar to centrifugal paddles. There are powerful propellers on the mixer. When running, fluids are forced between the stator and rotor in continuous cycle, then the fluids are forced to be sheared and mixed. As a result, users can obtain high quality and stable mixed product in a very short time.

The mixing head integrates four functions of dispersing, dissolving, emulsifying, mixing and crushing. SeFluid’s high shear batch mixer series is widely used in many industries. For instance, daily chemical, pharmaceutical, food, dyeing and paint production.

batch high shear mixer 2 | SeFluid



1.5 – 37 kw


20-5000 L/batch

Work Head Shape

Tooth, hole


SS304, SS316

Principle of Batch High Shear Mixer

how batch high shear mixer works - SeFluid

SeFluid’s batch high shear mixer series is composed of frame, rotor and stator. Driven by the motor, the machine generates strong centrifugal force at high speed. Meanwhile, the material is simultaneously drawn into the working chamber. The flow route is upper and lower feeding areas of the working head from the axial direction. The strong centrifugal force throws the material from the radial direction. And, the material flows into the narrow and precise gap of shearing parts.

In addition to the violent motor movement and liquid shear, the raw material also will experience extrusion, impact, tearing and friction, then constantly cycle up and down tumbling during the whole process.

Due to dead angle and whirlpool, the upper material may be difficult to move into the shear head. Therefore, the shear head has a claw and two-way suction structure to avoid above problem by generating strong centrifugal force. Meanwhile, the rotor works at high speed of 15 m/s to 40 m/s. Subsequently, strong mechanical, hydraulic shear, liquid layer friction and impact tear occurs.

At the same time, the medium and fluid constantly flows from the stator slot hole. When the flow meets the container wall resistance, it changes the flow direction. After that, the upper and lower two strong turbulent wheezing flow forms. As a result, the medium and fluid repeatedly moves from the shear head up and down for homogenizing. After numerous cycles, the high shear batch mixer rapidly crushes particles into sub-micron finesse. And it disperses, mix, emulsify and homogenize particles with fluid in a short time.

Prinzip der Inline-Hochscherpumpe

For a batch high shear mixer, different shear heads with different shapes have different mixing effects. According to the actual working conditions, users can choose different stator heads to meet different processes:

workhead type of batch high shear mixer | SeFluid
workhead type of batch high shear mixer 2 | SeFluid

Mesh Shape

It is suitable for mixing low-viscosity liquid with the highest shear rate. Further, it is most suitable for the preparation of emulsion and the crushing and dissolving process of small particles in liquid.

Long Hole Shape

Suitable for rapid crushing of medium solid particles and mixing of medium viscosity liquid. Long hole of batch high shear mixer head provides the maximum area of good circulation for surface shear.

Round Hole Shape

Ideal for general mixing or crushing of large particles. The original hole in the stator head provides the best circulation of all the stator. In addition, it is suitable for handling materials with higher viscosity.



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Industrielles Rührwerk


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