The DWS RheoLab is a powerful instrument that provides access to the sample’s viscoelastic properties over an unmatched frequency range while requiring only small sample volumes as much as 150 µL. The measurements are contact-free and non-destructive, the use of a tightly sealed sample cell allows studies of stability or shelf-life over long periods for highly viscoelastic and fragile microstructures. Based on the advanced DWS Microrheology (Diffusion Wave Spectroscopy) technique, the RheoLab is ideally suited for a wide range of viscoelastic samples including gels, suspensions, (Bio-) Polymers, emulsion, and Foams.


It is a 2 in 1 instrument both a rheometer and particle sizer in high concentrations. Its great advantage is the study of very sticky samples and the ability to characterize delicate microstructures. Additionally, using DWS Rheo Lab you will save time,  results in less than 30 seconds.


  • Technology: Diffusing wave Spectroscopy with Echo Technology
  • Viscosity range: 1 mPa*s do 1000 Pa*s
  • Storage (G’) & loss (G’’) moduli: 1 Pa do 50 kPa
  • Frequency range: 0.01  to 10^5 rad/s
  • Particle sizing*: 0.1 do 1 µm
  • Sample volume:  150 µL to 1.5 mL, depending on cuvette used
  • Temperature range: 4 to 100°C (optional: 4 to 180°C)
  • Laser: 685 nm with 45 mW
  • Size: 38 x 31 x 24 cm
  • Weight: 14 kg 

*Require backscattering mode.

***A climate controlled room at or below 23  required to meet these specifications, for temperature below the dew point dry air source is required. (optional: 4 to 180°C)