Torsional Pendulum ViscoMeter

The torsion pendulum viscometer drives a rotor immersed in the sample to rotate via a torsion wire, measuring the torque generated by the resistance of the sample, which is then converted into viscosity. It is used for detecting the viscosity of fluids such as coatings and inks, and for monitoring the flow characteristics of materials during production processes.
Selection
When selecting, consider matching the sample viscosity range with the instrument's measurement range, ensuring the rotor shape is suitable for the sample characteristics, the temperature control accuracy meets testing requirements, calibration certificates guarantee data reliability, and the operation interface aligns with the user's habits.

Terms

Standards

Instruments

Equipped with 200 +/- 0.2g Koenig pendulum and 500g platinum saz pendulum two configurations, the swing period is 1.4 +/- 0.02s and 1 +/- 0.001S, through the photoelectric system automatic measurement of film damping time, to meet the different standards of test requirements.

$ 751.00

Adopting Koenig pendulum structure, the total mass is 200 +/- 0.2g, and the swing period is 1.4 +/- 0.02s. The coating Hardness is accurately measured by the swing attenuation time, and the number of swing angles is automatically recorded.

$ 525.00

Using the electromagnet cissing pendulum, it can measure the thickness of the test plate from 0.1mm to 5.5mm, and is equipped with two laser Probes to record data. The swing period is 0.625s.

$ 1445.00

Support Koenig and Persaz double pendulum automatic switching, steel ball diaMeter 5mm and 8mm, with electromagnetic release and electronic counting mechanism to ensure that the test is accurate and not affected by the environment.

$ 11520.00

Using electromagnet cissing pendulum, equipped with two laser Probe to record data, the thickness range can be measured 0.1-5 mm, the organic Glass door cover reduces the influence of airflow, and the swing period is 1 second.

$ 1429.00

Using electromagnet cissing pendulum, equipped with two laser Probe recording data, can test 0.1mm to 5.5mm thickness test plate, swing period 1.4s, Organic Glass door cover to reduce the impact of airflow.

$ 1429.00

Using stopwatch counting method, the length of the swing Rod is 500 +/- 1mm, and the total mass of the swing is 120 +/- 1g. The resistance to deformation is evaluated by measuring the ratio of the swing amplitude time on the film to the swing time on the Glass.

$ 251.00

Equipped with 200 +/- 0.2g and 500 +/- 0.1g two swing bars, can measure the film damping time, reflect the surface Hardness through swing attenuation, support different standard test requirements.

$ 590.00

Support Koenig and Persaz two test methods automatic switching, ball diaMeter of 5mm and 8mm, equipped with electromagnetic release system and sound and light prompt function, to ensure Test accuracy and ease of operation.

$ 11520.00

It can be equipped with 200 +/- 0.2g and 500g swing Rods, providing 1.4 +/- 0.02s and 1 +/- 0.001s swing cycles respectively, and accurately determines the film Hardness through damping time to adapt to different coating resilience and viscosity characteristics.

$ 538.00

Measurement accuracy is ensured by the automatic counting function and the coating attenuation characteristics are determined by the stainless steel ball support.

$ 1719.00

The electromagnet cissing pendulum is used, which can adapt to the thickness test plate of 0.1mm to 5.5mm, and is equipped with two laser Probe to record data. The swing period is 1.4 seconds and 1 second respectively, and the organic Glass door cover reduces the influence of airflow.

$ 1493.00

Adopt stainless steel pendulum tube to achieve +/- 180 degree swing, equipped with 25 0.4mm nozzles, flow adjustment range 100-1000L/h, support sample holder 1-4 rpm adjustable speed, test water can be recycled.

$ 10401.00

Konig and Persoz swing bars are used, Konig swing period is 1.4s, Persoz swing period is 1s, and the number of swing angles is automatically recorded, which is suitable for accurate determination of paint film Hardness.

$ 662.00

Using Konig swing Rod, mass 200g, swing period 1.4 +/- 0.02s, can swing 250 +/- 10s on flat Glass, suitable for coating damping test, accurate measurement Hardness change.

$ 503.00

Articles

Application of High-Temperature Viscometer in Testing the Melt Viscosity Characteristics of Hot Melt Ink
This article introduces a method for testing the melt viscosity of hot-melt ink using a high-temperature viscometer. The test employs a rotational viscometer to measure the viscosity of three ink samples at different temperatures.
Application of Cone-and-Plate Viscometer in Determining the Rheological Curve of Non-Newtonian Fluids in UV Inks
This article introduces how a cone-plate viscometer measures the rheological curve of UV ink. UV ink is a non-Newtonian fluid whose viscosity changes with shear rate.
Guide to Selecting a Laboratory Rotational Viscometer for Coatings Development
This article introduces how to select a laboratory rotational viscometer in coatings research and development. It first explains the principle of rotational viscometers measuring viscosity based on shear resistance, and then points out that key parameters to consider during selection include measurement range, shear rate, temperature control, and rotor configuration.
High-temperature viscometer evaluates the flow characteristics of ceramic coatings before sintering.
This article introduces how to use a high-temperature viscometer to evaluate the flow characteristics of ceramic coatings before sintering. During measurement, the instrument detects changes in the viscosity of the coating sample under simulated sintering temperature conditions using rotational or oscillatory principles.
Practical Guide to Selecting Rotors and Speeds for Rotational Viscometers
A rotational viscometer measures viscosity by detecting the resistance encountered by a rotor rotating in the sample. When selecting a rotor, it is necessary to consider the estimated viscosity range of the sample, ensuring that the torque reading falls within 10% to 90% of the instrument's measurement range, while also taking into account the sample volume and rheological properties.
High-temperature viscometer measures the flow behavior of powder coatings in the molten state.
This article introduces the use of a high-temperature viscometer to measure the flow behavior of powder coatings in their molten state. Powder coatings need to melt and flow before curing, a process that directly affects the smoothness and performance of the coating.
Temperature-controlled Rotational Viscometer Simulates Coating Rheology in Construction Environments
This article introduces how to use a temperature-controlled rotational viscometer to simulate construction environments in order to study the flow characteristics of coatings. The viscosity of coatings changes under different temperatures and shear conditions, which affects their application performance.
Comparison of Rotational Viscometer and Capillary Rheometer in Testing the Flowability of Resin Processing
The rotational viscometer measures torque via rotor rotation, making it suitable for testing the static or low-shear fluidity of resins under low shear rates, with simple and quick operation. The capillary rheometer, on the other hand, forces samples through a capillary to simulate high-shear processing, providing flow data closer to actual production conditions, but it is more complex and time-consuming to operate.
Rotational Viscometer Measures Viscosity and Processability of Resin Melts
A rotational viscometer calculates viscosity by measuring the torque experienced by a rotor as it rotates in the resin melt, thereby helping to understand the material's processing properties.
Rotational Viscometer for Measuring and Controlling the Application Viscosity of Coatings
A rotational viscometer is a commonly used tool for controlling the viscosity of coatings during application, as it measures the torque generated by a rotor rotating in a fluid to calculate viscosity.
Method for determining the dynamic viscosity of varnish using a falling ball viscometer
This article introduces a method for measuring the dynamic viscosity of varnish using a falling-ball viscometer. It is based on Stokes' law, which calculates viscosity by measuring the time required for a standard small ball to fall a fixed distance in a vertical glass tube filled with varnish.
Stormer Viscometer for Determining Krebs Viscosity of Paints
This article introduces the method of measuring the Krebs viscosity value of colored paints using a Stormer viscometer. Viscosity is a key indicator that affects the application and storage of coatings. The Krebs unit (KU) quantifies viscosity based on the resistance encountered by a rotor as it rotates within the paint sample.
Rotational viscometer measures the viscosity of paint at low shear rates.
This article introduces the method and significance of measuring the viscosity of colored paint at low shear rates using a rotational viscometer.
Standard Method for Measuring the Melt Viscosity of Hot Melt Adhesives with a Rotational Viscometer
This article introduces the standard method for measuring the molten viscosity of hot-melt adhesives using a rotational viscometer. During the measurement, the hot-melt adhesive sample must be fully melted and degassed, placed into a measuring cup, and then measured with the rotational viscometer at a set temperature.
The cone and plate viscometer measures the rheological properties of a small amount of ink sample.
A cone-plate viscometer measures torque through rotation between the cone and plate, enabling the analysis of rheological properties with small ink samples. It is suitable for small-volume measurements, reducing interference from solvent evaporation.