Tensiometers

Force Tensiometer – K100

The universal instrument for analyzing surfactants and solid surfaces

Our universal Force Tensiometer perform high-precision, automatic and reliable measurements of surface tension and interfacial tension, critical micelle concentration (CMC) and contact angle on solids, fibers and powders.

With high-quality components and a uniquely wide range of methods, the instrument carries out many tasks in the field of surfactant analysis and wetting measurement for your quality assurance or research.

Tasks and applications

  • Determination of the effectiveness and efficiency of surfactants by CMC measurement
  • Wetting behavior of tablets, pharmaceutical active ingredients and excipients
  • Wetting of varnishes and paints
  • Decomposition product content in oils
  • Tank clearance and cleaning validation in the foodstuffs industry
  • Wetting and adhesion of coatings
  • Development of cosmetic products
  • Wetting properties of inks
  • Wetting of fiber bundles and textiles
  • Sedimentation and ductility of dispersions
  • Checking of surface modifications

Measuring methods and options

  • Surface tension and interfacial tension using the ring, plate and rod method
  • Surface tension and interfacial tension using the ring tear-off method, for example for measurements in accordance with ASTM D‑971
  • Critical micelle concentration (CMC) of surfactants
  • Contact angle and surface free energy of solids, powders or fiber bundles
  • Density of liquids and solids
  • Sedimentation behavior of dispersions
  • Penetration resistance of sediments
  • Measurement from -10 to 130 °C, temperature measurement with internal or external sensor

Force Tensiometer – K11

The precision instrument for quality assurance

Our Force Tensiometer – K11 is a precision and fully automatic instrument for the reliable measurement of surface tension and interfacial tension. With its high-quality components and simple operation, the K11 assists in the quality control and optimization of surfactant solutions and interfacial processes.

Tasks and applications

  • Determination of the effectiveness of wetting media
  • Checking the surfactant content in solutions below the critical micelle concentration (CMC)
  • Measurement of interfacial tension for the quality assurance and optimization of emulsifiers
  • Decomposition product content in oils according to ASTM D‑971.
  • Tank clearance and cleaning validation in the foodstuffs industry

Measuring methods and options

  • Surface tension using the ring, plate and rod method
  • Interfacial tension using the ring, plate and rod method
  • Surface tension and interfacial tension using the ring tear-off method
  • Testing of transformer oils in accordance with ASTM D‑971
  • Measuring the density of liquids
  • Measurement from -10 to 130 °C, temperature measurement with internal sensor

Force Tensiometer – K20

The flexible tensiometer for basic quality assurance

Our Force Tensiometer – K20 is a robust, semi-automatic instrument for the precise measurement of surface tension and interfacial tension. Using the ring and plate method as the main tensiometric methods, it produces reliable measurements for the routine quality assurance of your surfactant solutions and interfacial processes.

Tasks and applications

  • Determination of the effectiveness of wetting media
  • Checking the surfactant content in solutions below the critical micelle concentration (CMC)
  • Tank clearance and cleaning validation in the foodstuffs industry
  • Measurement of interfacial tension for the quality assurance and optimization of emulsifiers
  • Decomposition product content in oils according to ASTM D‑971.

Measuring methods and options

  • Surface tension using the ring and plate method
  • Interfacial tension using the ring and plate method
  • Surface tension and interfacial tension using the ring tear-off method
  • Testing of transformer oils in accordance with ASTM D‑971
  • Measuring the density of liquids
  • Measurement from ‑10 to 90 °C, temperature measurement with internal sensor

Force Tensiometer – K6

The manual tensiometer for clear and reliable basic measurements

Our Force Tensiometer – K6 is a robust and reliable manual instrument for measuring surface tension and interfacial tension using the ring method. As a quality product from our precision mechanical workshop, it produces fast, easy and accurate measurements for surfactant solutions and solvents.

Bubble Pressure Tensiometer – BP100

Analysis of surfactant solutions for dynamic processes

Our Bubble Pressure Tensiometer – BP100 measures dynamic surface tension with high accuracy. It reliably analyses the mobility of surfactants, thus enabling high-speed processes such as spraying, coating, printing and cleaning to be optimized.

Tasks and applications

  • Surfactant development
  • Optimization of spray processes
  • Development of washing and cleaning processes
  • Optimization of painting and printing processes
  • Checking the surfactant content in galvanic baths and cleaning baths

Measuring methods and options

  • Measurement of surface tension as a function of surface age
  • Long-term measurement of surface tension at constant surface age
  • Determination of adsorption coefficient and diffusion coefficient
  • Calculation of the surface tension of the solvent and the equilibrium surface tension (extrapolation in accordance with Hua & Rosen)
  • Temperature control from -10 to 130 °C, temperature measurement with internal sensor

Bubble Pressure Tensiometer – BP50

Measuring surfactant content and dynamic surface tension on the move

By checking the surfactant content of a cleaning or galvanic bath directly on site, with the utmost precision and in just a few seconds, our Bubble Pressure Tensiometer – BP50 provides optimum support for your process control. The BP50 measures the dynamic surface tension, which, particularly in the case of high surfactant content, reacts sensitively to changes in concentration. Our BP50 has been specially developed for use in quality assurance. During the flexible high-speed test, the software automatically signals whether the measured value lies within a limiting range that you have set or whether the surfactant content needs to be adjusted.

Applications

  • Surfactant development
  • Optimization of spray processes
  • Development of washing and cleaning processes
  • Optimization of painting and printing processes
  • Checking the surfactant content in galvanic baths and cleaning baths

Measuring methods and options

  • Measurement of surface tension as a function of surface age
  • Long-term measurement of surface tension at constant surface age
  • High-speed test at constant surface age with validity evaluation based on specified limits
  • Temperature measurement and recording