Laminar ViscoMeter

The laminar flow viscometer calculates viscosity based on the Hagen-Poiseuille law by measuring the pressure difference and flow rate of a fluid during steady flow in a slender pipe. It is used to detect the flow characteristics of Newtonian fluids such as coatings and inks at specific temperatures, providing viscosity data for the production process.
Selection
When selecting a laminar flow viscometer, it is essential to consider the match between the viscosity range of the fluid being measured and the instrument's measurement range, ensure that the pipe dimensions are compatible with the sample characteristics, verify that the temperature control precision meets the testing requirements, confirm that the material's corrosion resistance is suitable for the sample properties, and ensure that the operational convenience and data output methods align with user preferences.

Terms

Standards

Instruments

Adapt to a variety of Viscometer use, suitable for factory field applications, real-time printing measurement results, no need to hand copy, easy operation, can save labor time.

$ 183.00

The test program can be uploaded to the Viscometer host, the analysis record data can be collected, the rheological Linear dispersion and Excel can be generated, and five sets of data can be plotted and compared at the same time.

$ 204.00

Measurement accuracy of 0.1 ℃, range of 0~ 100 ℃, real-time display of temperature values, suitable for a variety of Viscometer models, to ensure a stable test environment.

$ 135.00

Silicone oil standard solution, calibrated viscosity 380cp, capacity 400ml, suitable for Viscometer calibrating.

$ 185.00

Measurement accuracy +/- 2%, equipped with 5 calibrated oils to ensure measurement accuracy, as a special accessory for cone-plate viscoMeter to achieve stability testing.

$ 2953.00

The shear rate is 2.0N, only 0.5ml sample volume can be completed to complete the test, suitable for a variety of models of Viscometer host, to meet the measurement needs of different viscosity ranges.

$ 683.00

Provides accurate viscosity values of 5.7cp, 400ml per bottle for Viscometer calibrated measurement Stability and Reliability.

$ 185.00

Quasi-closed Glass damper to prevent external air penetration, dual-gear adjustable air volume system to maintain 0.3~ 0.6m/s wind speed, 304 stainless steel experimental area corrosion resistance easy to clean.

$ 800.00

The quasi-closed Glass damper prevents external airflow from penetrating, the double-gear adjustable air volume system maintains the wind speed of 0.3~ 0.6m/s, the 304 stainless steel experimental area is resistant to corrosion and easy to clean, and the independent circulation air duct improves the dust-free effect.

$ 872.00

The use of low-energy centrifugal fans makes the airflow uniform and stable, with an average wind speed of 0.25 to 0.45m/s and noise less than or equal to 62dB (A). The mirror stainless steel countertop is corrosion-resistant and easy to clean, and the tripod and cabinet are separated for easy transportation.

$ 1013.00

Quasi-closed Glass damper prevents external airflow from penetrating, dual-gear adjustable air volume system maintains 0.3~ 0.6m/s wind speed, 304 stainless steel countertop is resistant to corrosion and easy to clean, and the noise is as low as 62dB (A).

$ 436.00

Quasi-closed Glass damper to prevent external air penetration, dual-gear adjustable air volume system to maintain 0.3~ 0.6m/s wind speed, 304 stainless steel integrated molding experimental area corrosion resistance easy to clean, equipped with independent five-hole socket.

$ 1161.00

Quasi-closed Glass damper to prevent external air penetration, dual-gear adjustable air volume system to maintain 0.3~ 0.6m/s wind speed, 304 stainless steel integrated table corrosion resistance easy to clean, noise ≤ 62dB.

$ 1088.00

Adopting a low-energy centrifugal fan and a reasonable air duct design, the airflow is uniform and stable; the average wind speed is 0.25 to 0.45m/s, and the noise is less than or equal to 62dB (A); the mirror stainless steel countertop is corrosion-resistant and easy to clean, and the standard initial effect and effective Filter meet the purification level.

$ 698.00

Quasi-closed Glass damper to prevent external air penetration, dual-gear adjustable air volume system to maintain 0.3~ 0.6m/s wind speed, 304 stainless steel integrated molding experimental area corrosion resistance easy to clean, equipped with independent five-hole socket and operating gloves mouth.

$ 858.00

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.
Selection of Clean Bench: Methods for Determining Airflow Direction and Cleanliness Class
This article primarily discusses the selection methods for clean benches, focusing on two aspects: first, determining the airflow direction based on experimental requirements—vertical laminar flow is suitable for protecting the operator, while horizontal laminar flow is ideal for protecting samples; second, selecting the cleanliness level according to ISO standards, typically requiring ISO Class 5.
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.