Rotational Viscosity Testing Meter

The rotary viscometer measures viscosity by rotating a rotor in the sample and determining the torque exerted by the fluid resisting the rotation. It is used for viscosity testing of fluids such as coatings and inks, guiding production formulation and process control.
Selection
When selecting, consider the measurement range and accuracy to match the sample characteristics. The rotor material must be corrosion-resistant, the temperature control function should suit the operating environment, the interface should be simple and easy to read, and the supply of maintenance parts should be stable.

Terms

Standards

Instruments

Viscosity range 0.6~ 6000000mPa · s, repRoducibility +/- 0.5% F. S, supports continuously variable speed and liquid crystal display of various paraMeters, suitable for ultra-low viscosity sample measurement.

$ 1255.00

High subdivision drive stepper motor ensures accurate and stable Rotation speed, Measurement accuracy of +/- 1% F. S, viscosity range of 1~ 1000000mPa · s, LCD display viscosity, Rotation speed and other Multi-ParaMeter, timing function to ensure thixotropic liquid data conformity.

$ 777.00

Measurement accuracy of +/- 2% F.S, repRoducibility +/- 0.5% F.S, viscosity range covering 1~ 600000mPa · s, with screen direct display viscosity, speed, torque and alarm function.

$ 835.00

With 18 speed Rotation speed control and 0.3-100 rpm range, automatic calculation range, support user-defined calibrate, Repeatability up to +/- 0.2% F. S, accuracy +/- 1% F. S, can measure 1~ 2000000mPa · s viscosity.

$ 4075.00

Using 998 stepless speed regulation and automatic scanning functions, Measurement accuracy of +/- 1% F.S., Support real-time viscosity Linear dispersion display and 30 data storage to meet a variety of viscosity measurement needs.

$ 1647.00

Equipped with four rotors, viscosity measurement range 20~ 100000mPa · s, fixed Rotation speed 6/12/30/60rpm, can display viscosity, Rotation speed, torque and maximum viscosity value, repRoducibility +/- 1% F.S.

$ 420.00

Rotation speed is continuously adjustable by microcomputer controlled stepper motor, viscosity range is 10~ 6000000 mPa.s, Measurement accuracy +/- 3% F.S., compact structure and good anti-interference performance.

$ 719.00

Dial display, viscosity measurement range of 10~ 100000mPa · s, accuracy +/- 5% F. S, equipped with four rotors and four Rotation speed, suitable for a variety of fluid viscosity detection, easy to operate.

$ 346.00

Viscosity measurement range 1~ 2000000mPa · s, repRoducibility +/- 0.5% F. S, sample volume only 25~ 30mL, Rotation speed control to meet different viscosity measurement needs.

$ 712.00

With 200-320000000mPa · s wide range and +/- 1% Measurement accuracy, support PT100 temperature detection and 10 sets of program storage functions, can automatically calculate Rotor speed combined range.

$ 5850.00

Adopt 16-bit microcomputer processor and stepper motor high subdivision drive to ensure smooth and accurate speed. Measurement accuracy of +/- 1% F. S, viscosity range covering 1 to 2000000mPa · s, the screen directly displays viscosity, speed, torque and rotor information, easy to operate.

$ 2957.00

Measurement accuracy of +/- 1% F. S, repRoducibility of +/- 0.5% F. S, support continuously variable speed control Rotation speed 1~ 60rpm, real-time display of rotor measurable maximum viscosity value, easy to operate.

$ 943.00

Measurement range 100-13000000cP, Repeatability +/- 0.2% F.S., supports 10 program stores and TTT/TTS Measurement mode, can automatically calculate the range and export Excel data.

$ 4721.00

Equipped with an ultra-low viscosity adapter, the viscosity test is as low as 1cp, the sample volume is only 25~ 30mL, repRoducibility +/- 0.5% F. S, Measurement +/- 1% F. S, support stepless speed control.

$ 1059.00

Using ARM technology built-in Linux system, viscosity measurement range 1~ 6000000mPa · s, accuracy +/- 1% F.S. Support automatic scanning recommended Rotor speed combination, real-time display of viscosity Linear dispersion and various paraMeters, can save 30 sets of data.

$ 1589.00

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.
Lab Mixer Selection - Viscosity Determines Torque
This article mainly discusses how to select a laboratory mixer based on the viscosity of the material. The higher the viscosity, the greater the torque required. Low-viscosity liquids are suitable for high speed and low torque, while high-viscosity materials require low speed and high torque.
The impact of temperature uniformity in laboratory water baths on viscosity measurement
This article discusses the importance of temperature uniformity in laboratory water baths for viscosity measurement. Viscosity is highly sensitive to temperature variations, and uneven temperature distribution within the water bath can lead to deviations in measurement results.
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.
The Zahn cup is used for the daily inspection of the viscosity of electrophoretic paint bath solutions.
This article introduces the application of the Zahn cup in daily inspections of the viscosity of electrophoretic paint bath solutions. The viscosity of electrophoretic paint affects coating quality, making daily inspections crucial. The Zahn cup is simple to operate, cost-effective, and suitable for rapid on-site measurements.
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.
Handheld viscosity cups are used for rapid assessment of paint viscosity at construction sites.
A handheld viscosity cup is a portable tool used to quickly assess the viscosity of coatings at construction sites. It operates based on the flow-out time method, calculating viscosity by measuring the time it takes for the coating to flow out of the cup's orifice. It is suitable for Newtonian or approximately Newtonian fluids.
Application of Desktop Viscometer Cups in Batch Sample Screening at Quality Inspection Centers
This article introduces the application of desktop viscosity cups in batch sample screening at quality inspection centers. Viscosity cups estimate viscosity by measuring the outflow time of fluids, making them suitable for rapid screening.
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.
When selecting a laboratory disperser, it is essential to evaluate the dispersion capacity and the speed range.
When selecting a laboratory disperser, it is crucial to evaluate the dispersion capacity and speed range. The dispersion capacity should be determined based on parameters such as material viscosity and solid content to avoid uneven dispersion or localized overheating caused by excessive or insufficient capacity.
Rotational rheometer measures the viscosity and processing performance of polymer melts.
A rotational rheometer applies a controlled shear field to measure rheological parameters such as the viscosity of polymer melts. The melt typically exhibits shear-thinning behavior, where its viscosity changes with the shear rate, directly affecting processing methods such as extrusion and injection molding.
The coating machine applies the OLED light-emitting layer onto ITO glass.
This article introduces the technique of using a coating machine to apply OLED luminescent layers onto ITO glass. The coating principle involves matching solution rheology with substrate surface energy, allowing control over film thickness by adjusting parameters such as viscosity and speed.