Viscometer

Viscometers are essential instruments in laboratories for measuring the viscosity of fluids, which is crucial in various industries such as pharmaceuticals, food, and cosmetics. Understanding the viscosity of a fluid helps in ensuring quality control and optimizing processes.
Choosing the right viscometer can significantly impact your experiments and results. With a wide variety of options available, it's important to consider several factors that align with your specific laboratory needs and applications.
What you should know before selecting a viscometer and making an investment
Key factors to consider

When selecting a viscometer, consider the type of fluid you will measure, as different viscometers are suited for various viscosities and fluid behaviors. Additionally, evaluate the measurement range, accuracy, and the required speed of measurement to ensure it meets your laboratory needs.
Another important factor is the method of operation; choose between rotational, capillary, or falling ball viscometers based on your specific application and the nature of the fluid. Understanding these factors will help you make an informed decision.
Market price range

The price of viscometers can vary widely based on their technology, features, and precision. Basic models may start from a few hundred dollars, while high-end, precision viscometers can cost several thousand dollars. It's essential to evaluate your budget against the features required for your specific applications.
Investing in a higher-priced model may offer advanced features and greater accuracy, which can ultimately save costs in the long run through improved efficiency and reduced error rates in measurements.
Value for money

Assessing the value for money of a viscometer involves examining its features, durability, and the level of customer support provided by the manufacturer. A cost-effective model should not only meet your measurement needs but also have a reputation for reliability and ease of use.
Consider long-term operational costs, including maintenance and calibration, as these can add to the overall expense. A more expensive model may offer lower maintenance costs and better service, making it a better investment over time.
Expected lifespan based on use and maintenance

The lifespan of a viscometer is influenced by the frequency of use and the level of maintenance it receives. Regular calibration and servicing can extend the life of the instrument, ensuring consistent results and functionality.
Choose a model that is known for durability and ease of maintenance. Understanding the expected lifespan can help you plan for future investments and replacements, ensuring your laboratory operates smoothly without interruptions.
VISCOMETER KALSTEIN
Discover viscometer for your laboratory
Explore our range of high-quality viscometers designed to meet the diverse needs of laboratory applications. Our products ensure precise and reliable viscosity measurements, crucial for quality control and research.

Digital rotary viscometer YR06639//YR06644
The YR06639//YR06644 Series Digital Rotary Viscometer is a high-precision tool designed for advanced fluid analysis. With a measurement capacity reach
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Lab Rotational Viscometer YR05853 - YR05854
The Lab Rotational Viscometer YR05853 - YR05854 seamlessly combines touch screen technology with modern high-tech innovation to provide rapid, accurat
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Digital Small Sample Viscometer YR05840 // YR05842
The Digital Small Sample Viscometer YR05840 // YR05842 is a cutting-edge instrument designed for high-temperature viscosity measurements. Utilizing a
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Cosmetics Rotating Dial Viscometer YR05851 - YR05852
The Cosmetics Rotating Dial Viscometer YR05851 - YR05852 is a state-of-the-art instrument designed to provide precise and reliable viscosity measureme
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Digital rotary viscometer YR06639//YR06644
Design and Technology
This equipment features a control panel with a touch keyboard and a large LCD screen that facilitates the reading of complex data. Key technological innovations include:- Auto-Scanning: The system recommends the optimal combination of rotor and speed for unknown samples.
- Dual Connectivity: Includes two RS232 ports, allowing simultaneous connection to a computer for data management and a printer for physical records.
- Rheological Analysis: Ability to display shear rate and shear stress, allowing for an in-depth study of fluid behavior.
- Computerized Calibration: Each measurement range is software-adjusted to minimize human error.
Frequently Asked Questions (FAQ)
- Is the device difficult to level? No, it features a level control on the front for quick and visual adjustment.
- Can I measure very hot samples? Yes, using the optional high-temperature furnace, it can measure molten materials such as asphalt or waxes.
- What if my sample size is very small? There is an optional small sample adapter (SSR) designed specifically for volumes of only 7 to 11 ml.
- Does it come with PC software? Yes, it can be connected to a computer via the RS232 interface to track viscosity curves.
Advantages and Disadvantages
Advantages:- Extremely wide measurement range (up to 320M mPa.s).
- Stable results and high resistance to electrical interference.
- Easy conversion of units (mPa.s, Pa.s, P, cP) and temperature (°C/°F).
- Excellent quality-to-price ratio compared to imported brands.
- Requires optional accessories (Pt100 probe) to measure temperature with 0.1°C precision.
- The equipment's size (12 kg) requires a fixed and stable workspace.
Field Use and Recommendations
This viscometer is essential in industrial quality control laboratories and biochemical research centers. Its use is highly recommended in:- Chemical Industry: Production of paints, inks, and adhesives.
- Cosmetics: Formulation of high-density creams and gels.
- Food Industry: Analysis of starches, pulps, and syrups.
- Construction: Evaluation of asphalts and hot-melt glues.
- Operating Tip: To achieve maximum precision, ensure the front level bubble is perfectly centered before starting any measurement.
Technical Specifications
| Specification | YR06639 | YR06640 | YR06641 |
| Speed (r/min) | 0.3 – 100 (37 tipos) | 0.3 – 100 (37 tipos) | 0.3 – 100 (37 tipos) |
| Rank R2 - R7 (mPa.s) | 100 - 13.000.000 | 200 - 26.000.000 | 800 - 104.000.000 |
| Rank URL (mPa.s) | 6.4 - 1.000 | 12.8 - 1.000 | 51.2 - 2.000 |
| Rotor 21# (mPa.s) | 50 - 167.000 | 100 - 333.000 | 400 - 1.300.000 |
| Rotor 27# (mPa.s) | 250 - 834.000 | 500 - 1.700.000 | 2.000 - 6.700.000 |
| Rotor 28# (mPa.s) | 500 - 1.700.000 | 1.000 - 3.300.000 | 4.000 - 13.300.000 |
| Rotor 29# (mPa.s) | 1.000 - 3.300.000 | 2.000 - 6.600.000 | 8.000 - 26.600.000 |
| Dosage R1-R7 | 500 ml | 500 ml | 500 ml |
| Dosage ULR | 21 ml | 21 ml | 21 ml |
| Dosage 21# / 27# | 7.8 ml / 11.3 ml | 7.8 ml / 11.3 ml | 7.8 ml / 11.3 ml |
| Dosage 28# / 29# | 12.6 ml / 11.5 ml | 12.6 ml / 11.5 ml | 12.6 ml / 11.5 ml |
| Measurement Error | ±1% | ±1% | ±1% |
| Repetitive Error | ±0.5% | ±0.5% | ±0.5% |
| voltage | 110V / 220V | 110V / 220V | 110V / 220V |
| Dimensions | 300*300*450(mm) | 300*300*450(mm) | 300*300*450(mm) |
| Weight | 12 kg | 12 kg | 12 kg |
| Specification | YR06642 | YR06643 | YR06644 |
| Speed (r/min) | 0.1 – 200 (58 tipos) | 0.1 – 200 (58 tipos) | 0.1 – 200 (58 tipos) |
| Rank R2 - R7 (mPa.s) | 100 - 40.000.000 | 200 - 80.000.000 | 800 - 320.000.000 |
| Rank URL (mPa.s) | 3.2 - 1.000 | 6.4 - 1.000 | 25.6 - 2.000 |
| Rotor 21# (mPa.s) | 25 - 500.000 | 50 - 1.000.000 | 200 - 4.000.000 |
| Rotor 27# (mPa.s) | 125 - 2.500.000 | 250 - 5.000.000 | 1.000 - 20.000.000 |
| Rotor 28# (mPa.s) | 250 - 5.000.000 | 500 - 10.000.000 | 2.000 - 40.000.000 |
| Rotor 29# (mPa.s) | 500 - 10.000.000 | 1.000 - 20.000.000 | 4.000 - 80.000.000 |
| Dosage R1-R7 | 500 ml | 500 ml | 500 ml |
| Dosage ULR | 21 ml | 21 ml | 21 ml |
| Dosage 21# / 27# | 7.8 ml / 11.3 ml | 7.8 ml / 11.3 ml | 7.8 ml / 11.3 ml |
| Dosage 28# / 29# | 12.6 ml / 11.5 ml | 12.6 ml / 11.5 ml | 12.6 ml / 11.5 ml |
| Measurement Error | ±1% | ±1% | ±1% |
| Repetitive Error | ±0.5% | ±0.5% | ±0.5% |
| voltage | 110V / 220V | 110V / 220V | 110V / 220V |
| Dimensions | 300*300*450(mm) | 300*300*450(mm) | 300*300*450(mm) |
| Weight | 12 kg | 12 kg | 12 kg |
Detailed analysis of viscometer for an effective and safe choice

Comparative Analysis of Digital Rotary Viscometer YR06639/YR06644 and Rotary Viscometer NDJ-8S
The Digital Rotary Viscometer YR06639/YR06644 by Kalstein is an advanced instrument designed for precise viscosity measurement. It boasts a digital display that enhances readability and accuracy, enabling users to monitor viscosity in real time. This device comes equipped with a wide measurement range and multiple rotating speeds, allowing for versatile application across various substances. The v

Advanced Viscometers for Precise Viscosity Measurement in Polymer Research
Viscosity measurement is crucial in various industries, but it holds special significance in polymer research. Viscometers provide precise data on a liquid's resistance to flow, which directly affects the quality and functionality of polymer-based products. In this context, having reliable and accurate equipment is essential to ensure reproducibility of results and quality control in research and

Innovation in Fluid Analysis: Examining Next-Generation Viscometers with Kalstein
In the ongoing exploration of science and technology, laboratories require high-precision tools to perform accurate and efficient fluid analyses. Within this context, next-generation viscometers mark a revolution, allowing more precise measurements than ever before. As a leading manufacturer, Kalstein takes pride in offering these innovative devices through an easy and affordable purchase process.

How low viscosity viscometers work?
Low viscosity viscometers are fluid measuring devices developed to evaluate the viscosity of liquids, oils and gasses. These devices are used to measure the relative fluidity of the product at a specific temperature, and also to help users make decisions about the viscosity of the product, and apply changes to bring it to desired values.
viscometer offer catalog

Viscosity Measuring Analyzer Laboratory Viscometer YR05855 - YR05856
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High Temperature Viscometer YR05843 // YR05846
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Touch Screen Brookfield Viscometer YR05858 - YR05859
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Brookfield Viscosity Tester YR05860 // YR05864
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Digital rotary viscometer YR06639//YR06644
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Lab Rotational Viscometer YR05853 - YR05854
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Digital Small Sample Viscometer YR05840 // YR05842
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Cosmetics Rotating Dial Viscometer YR05851 - YR05852
Ver productoGuides about viscometer
Complete guides to choose viscometer

What factors should you consider when selecting a viscometer?
The selection of a viscometer is an important decision when carrying out production tasks in an industrial environment, the tool is fundamental to ensure that fluids are being handled safely and consistently in the equipment, and its select
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How a viscometer can improve the quality of liquid products
The quality of many liquid products depends on the accuracy with which liquids are measured and manufactured; the viscometer is a useful tool that allows the viscosity of liquids to be determined with a precision mechanism, the information
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What are the advantages of using a viscometer?
Viscometers are widely used in various industrial sectors to measure and control the viscosity of fluids used in various companies. These instruments are used to determine the properties of fluids, including resistance to movement. This wil
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The quality and accuracy of viscosity measurement from a viscometer
Viscosity measurement is an important part of many industries, as this information maintains accuracy in products such as consumables and cosmetics. The use of a viscometer allows professionals to obtain the information needed for accurate
Leer másFrequently asked questions about Viscometer
How to know the prices of Viscometer?
To know the price of Viscometer, please send us an email with your request through the contact form AQUI.
What are the delivery times for Viscometer?
Delivery time depends on stock availability and freight type (air or sea). In stock: air 15-30 days, sea 45-60 days. Out of stock: air 30-60 days, sea 60-90 days.
How to make a purchase of Viscometer?
You can buy by email ([email protected]), phone (+33 (0) 1 70 39 26 50) or through the official Kalstein website in your country.
How does the warranty work for Viscometer?
All Kalstein equipment comes with a 1-year warranty against manufacturing defects. The warranty does not cover damage from improper installation or misuse. See our «terms and conditions» AQUI.
Can I request a quote online for Viscometer?
Yes, you can request a quote for the Kalstein equipment you are interested in directly from our official website. Click AQUI.