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Viscolead Series rotational viscometers
+ infoViscolead Series rotational viscometers for professional viscosity measurement
Viscolead Series rotational viscometers provide accurate, repeatable and reliable dynamic viscosity measurements for laboratories involved in quality control, research and product development. The range combines intuitive operation with advanced functionality to meet the requirements of both routine testing and demanding analytical applications.
Designed to measure the viscosity of Newtonian and non-Newtonian fluids, the Viscolead Series offers multiple instrument configurations that adapt to different laboratory workflows, from entry-level routine measurements to advanced programmable testing.
Fungilab's Viscolead Series is supported by a complete ecosystem of accessories, temperature control systems and certified reference materials to deliver comprehensive viscosity measurement solutions.
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.
Complete rotational viscosity solutions for modern laboratories
Viscolead Series rotational viscometers determine dynamic viscosity by measuring the torque required to rotate a spindle immersed in a sample at controlled speeds. This proven measuring principle delivers highly accurate and repeatable results across a wide range of viscosities and sample types.
The Viscolead family includes instruments designed for laboratories with different analytical requirements, offering an ideal balance between ease of use, advanced functionality and measurement performance.
Viscolead Series models
- Viscolead ONE for reliable routine quality control measurements.
- Viscolead ADV for laboratories requiring advanced programming, data management and enhanced testing capabilities.
Typical applications
- Pharmaceutical products.
- Cosmetics and personal care formulations.
- Food and beverage products.
- Paints, coatings and inks.
- Adhesives and sealants.
- Chemical products.
- Lubricants and petroleum products.
- Research, development and quality control laboratories.
Expandable measurement capabilities
The Viscolead Series can be adapted to a wide variety of applications through specialised accessories designed for different sample types and viscosity ranges.
- Small Sample Adapter (APM) for reduced sample volumes.
- Low Viscosity Adapter (LCP) for very low viscosity liquids.
- HELDAL Unit for highly viscous or non-flowing materials.
- Thermosphere for elevated-temperature viscosity measurements.
Temperature-controlled testing
Since viscosity is directly affected by temperature, Fungilab offers heating circulators and refrigerated circulators to ensure precise thermal stability throughout the measurement process.
Calibration and quality assurance
Regular verification using certified viscosity standard oils guarantees traceable, accurate and repeatable viscosity measurements while helping laboratories comply with quality assurance procedures.
Advantages of the Viscolead Series
- Accurate and repeatable dynamic viscosity measurements.
- Models for both routine and advanced laboratory applications.
- User-friendly operation.
- Wide compatibility with specialised accessories.
- Suitable for Newtonian and non-Newtonian fluids.
- Ideal for research, development and quality control laboratories.
Frequently asked questions about the Viscolead ADV
What is the Viscolead Series?
The Viscolead Series is Fungilab's family of professional rotational viscometers designed for accurate dynamic viscosity measurements in quality control and research laboratories.
Which Viscolead models are available?
The range includes the Viscolead ONE for routine laboratory testing and the Viscolead ADV for advanced viscosity analysis and programmable measurement methods.
Which materials can be measured?
The Viscolead Series measures liquids, creams, gels, coatings, adhesives, oils and many other Newtonian and non-Newtonian materials.
Can the instruments be expanded with accessories?
Yes. The Viscolead Series is compatible with the APM, LCP, HELDAL Unit and Thermosphere systems for specialised viscosity measurements.
Why is temperature control important?
Viscosity changes with temperature, so stable thermal conditions are essential for achieving accurate and repeatable measurement results.
How can measurement accuracy be verified?
Using certified viscosity standard oils allows laboratories to verify instrument performance and maintain traceable measurement accuracy.
Which industries use the Viscolead Series?
The Viscolead Series is widely used in pharmaceutical, cosmetic, food, chemical, lubricant, coating and research laboratories worldwide.
What are the main benefits of the Viscolead Series?
The series offers reliable viscosity measurements, flexible instrument options, expandable functionality, excellent repeatability and ease of use for professional laboratory environments.
