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The pictures show different mixing states of kneading masses, which are mixed step by step using the speedmixer. The degree of mixing increases with longer mixing time from left to right.

Research Area

Primer & Chemical Surface Treatment

The picture shows an arrangement of dispersing discs of 80 mm to 25 mm diameter arranged according to size

Research Area

Primer & Chemical Surface Treatment

Stirring & Mixing Technique

The available stirring and mixing technology allows us to optimally stir, mix and disperse adhesives, sealants, casting coumpounds, paints and varnishes on a laboratory scale. The processable product quantities start at about 0.5 g. During the processes, reproducible homogeneous mixtures are created. Due to the special procedures, it is possible to obtain bubble-free preparations or to degas products in a targeted manner.

 

Speedmixer

Speedmixer

Manufacturer:Hauschild Engineering
Type:Speedmixer DAC 150 FVZ

The speedmixer is a laboratory mixing system, which is ideally suited for quick mixing, dispersing or grinding of different materials due to the double rotation of the mixing cup (principle ⇒ "dual asymmetrical centrifuge"). Reproducible results are achieved within a short time. The speedmixer is preferred for the production of bubble-free homogeneous mixtures of adhesives, sealants / casting compounds and paints / varnishes. The used liquid raw materials can range from low to high viscosity or even be kneadable. When adding fillers such as powder, fibers, flakes, high filling levels can be achieved.

The pictures show different mixing states of kneading masses, which are mixed step by step using the speedmixer. The degree of mixing increases with longer mixing time from left to right.
Kneading mass stepwise mixed using the speedmixer
The picture shows the front view of the Speedmixer. You can see the controls for setting the speed and the mixing time. The control has a display for the current speed.
Front view of the Speedmixer

Device Configuration
- Speed range: from 300 to 3500 rpm
- Mixing times: starting at 5 s
- Quantity: from approx. 0.5 g

 

Application Examples:
- Mixing, dispersing and grinding
- Mixtures
  • Bubble-free
  • Homogeneous
  • Reproducible
- For low to high viscosity / kneadable components
- High filler contents can be realized

 

Especially Suitability for:
adhesives, sealants, casting compounds, paints and varnishes

Dispersants

Dispersants / Dissolver / Mixer

Manufacturer:  VMA Getzmann GmbHIKA Labortechnik
Type:  Dispermat CA 40Dispergator T25 basic     and
Rührgerät IKA Eurostar
The picture shows a dispergator in action. You can see how a yellow liquid is dispersed.
Dispergator in action

Dissolvers are disk stirrers, which are used for dispersion. For example, in this process a pigment powder is dispersed in a binder, whereby the dissolver has the function of breaking up agglomerates of primary particles.
A vertical stirrer shaft is equipped with a toothed stirring disc (dispersing disc), which is dipped into the product to be dispersed. Due to the fast rotating movement of the dispersing disk and the resulting shear forces, the agglomerates are dispersed.

The illustration shows a row of dispersion discs from 80 mm to 25 mm diameter, arranged according to size.
Dispersing discs from 80 mm to 25 mm diameter
The figure shows a dispergator T25 basic. The colour-coded speed table can be seen in detail. Above the speed table there is a ventilation grille and above it a colour-coded setting wheel for the speed.
Dispergator T25 basic (detail view - speed control)


Device Configuration 
- Speed range: 0 to 20,000 rpm or 0 to 24,000 rpm
- Stainless steel container: 100, 250 & 500 ml
- Dispersing discs: 25, 30, 40, 50, 60 & 80 mm made of stainless steel
- Accessories: vacuum unit up to 250 ml + clamping unit
- Quantity: from 0.05 l

As additional equipment, a temperature-controlled vacuum system is available. Using this supplementary system, highly viscous products can be dispersed and degassed simultaneously. Furthermore, the dissolver is equipped with a container-clamping unit, which also enables dispersing in various containers (bottles, cups, hobbocks).

 

The Dispergator T25 basic is shown in rest position.
Dispergator T25 basic
The illustration shows the IKA Eurostar stirrer mounted on a tripod. A stirring tool is clamped in the device, which is located in a white liquid that is currently being stirred.
Stirrer IKA Eurostar
The figure shows a dispergator with container-clamping unit in rest position. The mounted dispersion disk can be seen above the clamped plastic bottle.
Dispergator with container-clamping unit in rest position
The illustration shows a disperser with container clamping device and temperature-controlled vacuum system in operation.
Dispergator with vacuum system

⇒ Please do not hesitate to contact us for questions and further information about our R&D and services offered.

 

Dr. Joerg Leuthaeusser

Head of Department
Primer and Chemical Surface Treatment

e-mail
Phone: +49 3641 2825 48