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Few ingredients – Great results

The HAAKE MiniLab II needs a sample volume of 7 cm3 only.

Compounding expensive materials such as nano-composites, biopolymers or pharmaceuticals is therefore no longer a problem.

Simultaneously the rheological properties can be recorded to document structural changes.

By using the optional force feeder, continuous extrusion with very small volumes is possible. The separately available mini-injection molding machine allows you to create specimens for material testing.


The HAAKE MiniLab micro compounder was specially developed for the compounding of small volume (7 cm3) samples. This miniaturized high-tech tool is perfect for research in material science, testing of expensive additives and the development of new formulations. The system is based on a conical twins-crew compounder with an integrated backflow channel. Due to the channel and a bypass valve, the residence time is well defined. Two pressure transducers are integrated in the backflow channel. They allow the measurement of (relative) melt viscosity up to 350°C (optionally 420°C). The HAAKE MiniLab can be used with co- or counter-rotating screws and is equipped with an inert gas flush system.


The HAAKE MiniLab is ideal for the precisely controlled reactive extrusion of high viscous melts. By running the instrument in recirculation mode, the required reaction time for the reaction mixture (e.g. a monomer polymer and catalyst) can be controlled easily. At the end of the test the bypass valve can be opened and the sample is extruded as a strand. By measuring the torque of the drive motor and the pressure in the backflow channel the reaction process can be moni tored effectively. Because of the small sample volumes required the combination of the HAAKE MiniLab and the HAAKE ForceFeeder is a powerfull tool for the quick analysis.

Performing the same test with a standard lab extruder would take much longer.

Main features

  • co- and counter rotating twin screws
  • integrated viscosity measurement
  • automatic bypass operation for circulation/extrusion
  • pneumatic feeding
  • LCD screen for graphical data display
  • manual or computer control
  • easy to clean due to exit in split barrel
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Micro-compounder for industrial research and development.

When developing new products, shortening time-to-market and reducing raw material waste and overall development costs provide a distinct competitive advantage. Thus, quick and early assessment of a new material is key. The Thermo Scientific HAAKE MiniCTW allows researchers to extrude as little as five grams of material, helping to accelerate product development.

The challenge

Customers in industrial research and development need to assess and optimize hybrid materials to keep production costs low: They focus on improving relative performance of supplied polymers concerning temperature stability, weight, rigidity profiles by introducing additives, fillers or fibers. Often basic compounding can be enough to validate materials science requirements. Therefore, a partner who specializes in polymer optimization with a broad product portfolio is appreciated. The portfolio must support compounding needs and only requires small sample volumes or enables further mechanical testing or color matching, i.e. tensile, emodulus, impact, DMA or melt rheology.

The solution

When compounding expensive or small scale materials such as nano-composites or engineered polymers, you need a fast, dependable, cost efficient method to obtain tangible results.

Priced right, the Thermo Scientific HAAKE MiniCTW micro-conical twin screw compounder is the answer. The HAAKE MiniCTW requires as little as five grams or seven milliliters (ml) of material for compounding, which is especially beneficial for industries that compound expensive or small-scale materials such as nanocomposites,bio-polymers or pharmaceuticals. By using the optional force feeder, customerscan continuously extrude very small material volumes.

Industrial Markets:

  • Automotive
  • Aerospace
  • Electronics
  • Polymer Processing
  • Polymer Screening
  • Colorants
  • Specialty inks / Toners
  • Building and Construction
  • Consumer Products
  • Pulp & Paper


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