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IKA rotational viscometers
+ infoDynamic viscosity measurement for laboratory and industrial applications
Dynamic viscosity measurement is essential for evaluating how liquids and semi-solid materials resist flow under applied force. Accurate viscosity data supports product development, quality control and process optimisation across a wide range of industries.
Fungilab provides complete dynamic viscosity measurement solutions based on precision rotational viscometers, temperature control systems and specialized accessories designed to deliver reliable, repeatable and traceable laboratory results.
Whether measuring low-viscosity liquids or highly viscous materials, Fungilab offers instruments adapted to routine laboratory testing as well as demanding research applications.
Our products
Viscolead Series
Viscolead ONE
Viscolead ADV
Accessories
LABORATORY DIVISION
Dynamic viscosity
Viscosity is part of the science of Rheology which quantifies the resistance materials give to changing shape.
Proper interpretation of viscosity data can reduce the rate of rejects while keeping production and formulation development costs to a minimum. Consistent product quality is ensured through proper viscosity measurements, either alone or in conjunction with compatible tests.
Dynamic viscosity testing can help with:
- Material characterization or “finger-printing”
- Standard testing methods to check for differences between batches
- Indirect way of measuring quality
- Product formulation
- Quality control
- Process control
- Design, optimization and operation of process equipment
Material characterization or “finger-printing”
Standard testing methods to check for differences between batches
Indirect way of measuring quality
Product formulation
Quality control
Process control
Design, optimization and operation of process equipment
Viscosity types
Dynamic viscosity
Centipoise (mPa*s)
Kinematic viscosity
Centistokes (mm2/sec)
Apparent viscosity
Centipoise (mPa*s)
Newton’s Law
According to Newton’s law, the viscosity of a fluid is constant. As shear rate changes, shear stress changes in proportion such that viscosity is constant. Common fluids that exhibit such behavior are:
Unfortunately for us, not all fluids follow Newton’s law. In fact, most fluids do not. For this reason, fluids are classified into two categories:
Rotational Viscometer
The viscosity is calculated from the measured torque and rotational speed, as well as the dimensions of the measuring geometry.
A fluid’s resistance to flow is measured by the torque it exerts on the rotating shaft of the viscometer.
Absolute viscosity: the measuring geometry fulfills certain requirements (which is the case of coaxial spindles).
Relative viscosity: the dimensions of the measuring geometry are not well defined.
Advantage
Flexibility in:
- Viscosity Range
- Temperature range
- Shear rate range
Application
For Newtonian and non-Newtonian substances and temperatures different from room temperature.
Professional rotational viscometers for accurate viscosity measurements
When evaluating IKA rotational viscometers, laboratories often compare instrument performance, measuring range, software capabilities, available accessories and long-term flexibility. Fungilab offers a complete range of rotational viscometers designed to satisfy both routine quality control and advanced research applications.
Rotational viscometers determine dynamic viscosity by measuring the torque required to rotate a spindle inside the sample. This technique is suitable for analysing Newtonian and non-Newtonian fluids across a broad viscosity range.
Fungilab rotational viscometer range
Fungilab manufactures several professional viscosity measurement solutions, including:
- Viscolead Series for intuitive routine laboratory measurements.
- V-Series for advanced laboratory applications requiring enhanced connectivity and productivity.
Specialized accessories
Different applications require different measuring configurations. Fungilab offers dedicated accessories that expand the capabilities of its rotational viscometers.
- Small Sample Adapter (APM) for limited sample volumes.
- Low Viscosity Adapter (LCP) for low-viscosity liquids.
- HELDAL Unit for highly viscous and paste-like materials.
- Thermosphere for viscosity measurements at temperatures up to 300°C.
Accurate temperature control
Reliable viscosity measurements require stable thermal conditions. Fungilab provides heating circulators and refrigerated circulators to ensure precise temperature regulation during testing.
Measurement verification
Routine verification using certified viscosity standard oils helps laboratories maintain accurate, repeatable and traceable viscosity measurements throughout the lifetime of the instrument.
Applications
Rotational viscometers are widely used in the pharmaceutical, cosmetic, food, chemical, paint, coating, adhesive and petroleum industries for quality control, formulation development and production monitoring.
Choosing the right rotational viscometer
The most suitable instrument depends on the viscosity range, sample characteristics, operating temperature and laboratory workflow. Fungilab offers complete viscosity measurement solutions that provide an excellent alternative for laboratories comparing professional rotational viscometers.
Frequently asked questions about the Viscolead ADV
What are IKA rotational viscometers used for?
They are used to measure the dynamic viscosity of liquids and semi-solid materials for laboratory quality control, research and product development.
What is an alternative to IKA rotational viscometers?
Fungilab manufactures professional rotational viscometers offering high accuracy, multiple accessories and complete viscosity measurement solutions for laboratory applications.
Can Fungilab viscometers measure non-Newtonian fluids?
Yes. Fungilab rotational viscometers are designed to measure both Newtonian and non-Newtonian materials using the appropriate spindle configuration.
Which accessories are available for Fungilab viscometers?
Available accessories include the Small Sample Adapter (APM), Low Viscosity Adapter (LCP), HELDAL Unit and Thermosphere High Temperature System.
Why is temperature control important during viscosity measurements?
Viscosity changes with temperature, so precise thermal control is essential for obtaining accurate and repeatable measurement results.
How can instrument performance be verified?
Routine verification using certified viscosity standard oils helps ensure long-term accuracy and measurement traceability.
Which industries use rotational viscometers?
They are widely used in pharmaceutical, cosmetic, food, chemical, coating, adhesive and petroleum laboratories.
How do I choose the right rotational viscometer?
The best choice depends on the viscosity range, sample type, temperature requirements and laboratory workflow. Fungilab offers solutions for both routine quality control and advanced research applications.
