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TA Instruments | Waters Corporation offers the most advanced rheometers on the market, engineered for superior accuracy, versatility, ease of use, and performance. With more than 40 years of experience in rheology, over 10,000 active rheometer installations worldwide, and 113,000+ scholarly publications, TA Instruments provides best-in-class support for its customers. Our strong global network includes dedicated applications and service teams, ensuring unparalleled expertise and assistance for researchers and industry professionals.

Explore our full lineup of rheometers, including the Discovery Core Rheometer, Discovery Hybrid Rheometer (DHR) Series, and ARES-G2 Rheometer, each designed to deliver unmatched accuracy and performance for rheological analysis.

TA Instruments Rheometers Lineup

Discovery Core Rheometer – Rheometry Made Easy

The Discovery Core Rheometer sets a new standard in ease-of-use rheometry, delivering exceptional accuracy, ease of use, and performance. Designed for laboratories requiring fast, accurate viscosity and rheological measurements, the Discovery Core offers:

  • Unique Ease of Use – with new RheoGuide user interface, operation is just as easy as a viscometer. Touchscreen prompts and illustrations guide every step of your standard operating procedure, eliminating sources of error and reducing training time, for consistent accurate results.
  • Precision Viscosity and Viscoelasticity – Access measurements beyond traditional viscometer capabilities such as viscosity over a range of process-relevant shear rates, yield stress, thixotropy/ structure recovery, viscoelasticity (G’, G”, Tan Delta), temperature dependance and more.
  • Instant Insights – The Core Rheometer’s measurement capabilities combined with powerful TRIOS software enable rapid pass/fail identification, trend monitoring and advanced analysis.

Ideal for routine quality control, formulation development, process optimization or analytical testing, the Discovery Core Rheometer delivers problem-solving insights in a streamlined user experience that fits into any lab’s workflow.

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Discovery Hybrid Rheometer (DHR) – Ultimate Versatility and Performance

The Discovery Hybrid Rheometer (DHR) series provides industry-leading performance, versatility and ease of use, ideal for wide ranges of materials and measurements. The DHR features:

  • Superior performance through innovation – DHR measurement technology reflects our 40 years of rheometry expertise through innovative patented technologies such as the magnetic thrust bearing for torque sensitivity, optical encoder dual reader for displacement resolution and precise gap control, delivering accurate results.
  • Unmatched Versatility – with over 200 accessories, the DHR is ready for any material or measurement need. SmartSwap™ technology enables rapid, tool-free accessory exchange, making it the ultimate flexible solution for diverse testing needs.
  • Designed to empower your lab – intuitive touchscreen controls streamline sample handling, and powerful TRIOS software allows complete customization for all your unique experimentation.

With 3 available models (HR10, HR20, HR30) and 100s of configurations, the Discovery Hybrid Rheometer provides high-performance measurements to meet today’s needs and enable future innovations.

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Figure 1. Discovery HR Rheometer with Powder Rheology Accessory shear cell

ARES-G2 Rheometer – The Most Distinguished Research Rheometer in the World

The ARES G2 is the premier rheometer for advanced research into rheological behavior and material characterization.

  • Unmatched Performance with Separate Motor and Transducer (SMT) – The only rheometer in the world with truly separate motor and transducer technology, delivering nearly four times the output of other available rheometers. This design provides the highest accuracy and sensitivity for precise material characterization.
  • Industry-Leading Temperature Control – Featuring the most advanced temperature control available, the ARES-G2 ensures precise thermal stability for the most demanding applications, delivering unmatched accuracy in material testing.
  • Beyond Traditional Rheometers – The ARES-G2 outperforms comparable rheometers with superior strain control, independent stress measurement, and best-in-class sensitivity. Its advanced capabilities provide researchers with the highest-quality data for complex material analysis.

Recognized as the most powerful rheometer for fundamental research, the ARES-G2 Rheometer is ideal for polymer science, materials development, and advanced academic studies.

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Figure 1. ARES-G2 and Discovery Hybrid Rheometer

Rheometer Comparison

Discovery Core Rheometer

Discovery Core Rheometer

Discovery Hybrid Rheometer

Discovery Hybrid Rheometer

ARES-G2 Rheometer

ARES-G2 Rheometer

Discovery Core Rheometer Discovery Hybrid Rheometer ARES-G2 Rheometer
Core rheology capabilities for routine testing Curated versatility without sacrificing performance Highest performance and advanced research needs
  • Viscosity plus yield stress, viscoelasticity, structure-rebuild
  • Streamlined RheoGuide interface
  • Self-contained with integrated temperature control
  • Our widest range of rheology measurements
  • 30+ specialized accessories
  • Fully-integrated DMA capabilities – no extra motor required!
  • Inertia and friction free measurements
  • Versatile accessory portfolio, including integrated DMA
  • Fast-responding temperature control with oxygen free environment

Rheometer Categories

Discovery Core Rheometer

Discovery Core Rheometer

Discovery Hybrid Rheometers

rheometers ares

ARES-G2

rheometers viscometers

Viscometers

rheometers dma

Dynamic Mechanical Analyzers

rheometers accessories

Discovery Hybrid Rheometer Accessories

Rheology Applications

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    Batteries & Battery Materials
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    Biologics
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    Composites
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    Electronics
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    Medical Devices
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    Paints, Inks, Coatings
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    Personal Care & Household Products
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    Pharmaceutical Materials

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    Polymers

Rheometer Resources

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Why Choose TA Instruments Rheometers?

TA Instruments rheometers are trusted worldwide for their unparalleled precision, accuracy, and ease of use. When you choose a TA rheometer, you benefit from:

  • Market-Leading Sensitivity & Accuracy – Industry-best measurement resolution and torque control.
  • Advanced Software Integration – Intuitive control and data analysis with TRIOS Software.
  • Unmatched Versatility – Solutions for rotational, oscillatory, and strain-controlled testing.
  • Effortless Ease of Use – Designed for intuitive operation, ensuring quick setup and smooth handling for both new users and experienced professionals.
  • Free TRIOS Software Downloads – Access to comprehensive, powerful software for rheometer control and data analysis at no cost, with extensive features tailored to enhance your testing experience.
  • Expert Support & Service – Backed by TA Instruments’ world-class technical support team, including a global network of applications specialists and service professionals. With over 40 years of rheology expertise, more than 10,000 active rheometer installations worldwide, and 113,000+ scholarly publications, TA Instruments provides unmatched customer support for every stage of your research and testing needs.

Whether you’re conducting routine quality control tests or cutting-edge research, TA Instruments rheometers deliver superior performance and reliability for every application.

Frequently Asked Questions About TA Instruments Rheometers

What is rheology?

Rheology is the study of flow and deformation of materials. Deformation and flow are referred to as strain or strain rate, respectively, and indicate the distance over which a body moves under the influence of an external force, or stress. For this reason, rheology is also considered to be the study of stress-strain relationships in materials.

 

What is a rheometer?

A rheometer is an advanced instrument used to measure the flow and deformation behavior of materials, such as liquids, gels, pastes, and polymers, under different conditions. It provides critical insights into the viscosity, elasticity, and other rheological properties of materials, which are essential for product development and quality control.

TA Instruments boasts a curated portfolio of rheometers ranging from core, routine rheology needs, versatile platforms, and the most advanced instrument for research and material development.

Why should I choose a TA Instruments rheometer?

TA Instruments rheometers stand out due to their precision, sensitivity, and versatility. Our rheometers feature cutting-edge technologies like SmartSwap™ 2 Technology for automatic geometry detection and Advanced Drag Cup Motors for unparalleled torque precision. With a reputation for reliability and innovation, TA Instruments rheometers are trusted worldwide for both routine and advanced rheological testing.

What are the main differences between the Discovery Core Rheometer and the Discovery Hybrid Rheometer?

The Discovery Core Rheometer is designed for routine, high-precision viscosity and rheological measurements with fast equilibration times, making it ideal for labs requiring efficient, consistent results.

On the other hand, the Discovery Hybrid Rheometer (DHR) offers advanced capabilities such as unmatched sensitivity, a broad torque range, and enhanced strain and stress control, making it suitable for more complex material characterization across a wide range of applications.

How does the ARES-G2 Rheometer differ from other rheometers?

The ARES-G2 Rheometer is the most advanced strain-controlled rheometer available. It offers true strain control and features the High-Resolution Force Rebalance Transducer (FRT), allowing for extremely accurate torque and normal force measurements. It is particularly well-suited for high-end research applications, such as polymer science and materials development, and can be customized with integrated environmental systems for precise temperature and humidity control.

 

 

What industries benefit from TA Instruments rheometers?

TA Instruments rheometers are widely used across industries including batteries, pharmaceuticals, polymers, biopharmaceuticals and biologics, paints, inks, coatings, composites, electronics, and medical devices. They are critical tools in product development, quality control, and research for any industry that involves complex materials or processes requiring rheological analysis. 

How accurate are TA Instruments rheometers in measuring viscosity and other rheological properties? 

TA Instruments rheometers provide industry-leading sensitivity and accuracy. With advanced technologies like SmartSwap™ 2 for error-free geometry recognition and Core Temperature Technology for rapid temperature control, our rheometers consistently deliver precise measurements, even for challenging samples with low viscosities or non-linear behaviors.  

 

 

 

 

What types of materials can be tested with TA Instruments rheometers?

TA Instruments rheometers can measure a wide range of materials, including liquids, pastes, gels, suspensions, solids, and complex fluids. Whether you’re testing low-viscosity fluids or highly structured gels, our rheometers provide the necessary sensitivity and torque control to accurately characterize your materials. 

Can I use a TA Instruments rheometer for both rotational and oscillatory testing?

Yes, all TA Instruments rheometers, including the Discovery Core Rheometer and Discovery Hybrid Rheometer, support both rotational and oscillatory testing. This dual capability allows you to measure a wide range of rheological properties, including viscosity, elasticity, and stress/strain responses, under various conditions.

How do I get started with a TA Instruments rheometer?

To get started, simply request a demo or quote tailored to your specific application needs. Our team will work with you to determine which rheometer model is best suited for your research or quality control tasks, and we provide expert training and technical support to ensure smooth setup and operation.

 

How does SmartSwap™ 2 Technology enhance the accuracy of my rheological tests?

SmartSwap™ 2 Technology automatically detects and calibrates the geometry used in your experiment, ensuring precise alignment and eliminating user errors. This feature reduces setup time and improves repeatability, making your testing more efficient and accurate.

 

 

Ready to experience the best in rheometry?
Contact us today to request a personalized demonstration or receive a customized quote for your specific testing needs.