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TA Instruments - Rheology - Discovery Hybrid Rheometers

The most popular line of rotational rheometers from the World Leader in Rheology.

The new Discovery Series Hybrid Rheometer (DHR) represents the latest technological breakthroughs from the world leader in rheology. It combines a patented advanced drag cup motor, a second-generation magnetic bearing, force rebalance transducer (FRT), and the new patent-pending True Position Sensor (TPS) in a single-head Hybrid rheometer.

The DHR has unprecedented performance specification and delivers unsurpassed direct strain control, direct stress control, and normal force measurement accuracy. The DHR features all popular TA innovations including patented Smart SwapTM geometries and the widest range of Smart Swap temperature systems and accessories commercially available. The result is the most advanced, versatile rheometer platform imaginable.

The Discovery Hybrid Rheometer is available in three models to meet your specific needs of sensitivity and capability. From the world’s most sensitive rotational rheometer – the HR-3 – to the general-purpose HR-1, every Discovery Hybrid Rheometer is built on a common core of the TA Instruments advanced drag cup motor and second generation magnetic thrust bearing. Find out how the Discovery Hybrid Rheometer will improve your rheological characterization by making better measurements over a wider range of conditions with less time in the laboratory.

Technical specifications

Discovery Hybrid Rheometers

HR-10 HR-20 HR-30
Bearing type, thrust Magnetic Magnetic Magnetic
Bearing type, radial Porous carbon Porous carbon Porous carbon
Motor design Drag cup Drag cup Drag cup
Minimum torque (nN.m) oscillation 5 1 0.3
Minimum torque (nN.m) steady shear 5 3 1
Maximum torque (mN.m) 200 200 200
Torque resolution (nN.m) 0.1 0.1 0.05
Minimum frequency (Hz) 1.00E-07 1.00E-07 1.00E-07
Maximum frequency (Hz) 100 100 100
Minimum angular velocity (rad/s) 0 0 0
Maximum angular velocity (rad/s) 300 300 300
Displacement transducer Optical encoder Optical encoder Optical encoder
Optical encoder dual reader N/A Standard Standard
Displacement resolution (nrad) 10 2 2

Available models

The HR-1 is a rugged, accurate, field-proven rotational rheometer. The HR-1 shares the cutting-edge technology of the Discovery Hybrid Rheometer family in a platform that is ideal for production control, asphalt manufacture, and a wide range of general measurements of viscosity and viscoelasticity.

The HR-2 is an outstanding general-purpose rotational rheometer for a wide range of analytical, research, and production uses. With performance characteristics suitable for the most demanding measurements and a proven track-record of reliability, the HR-2 is at home anywhere a rheometer is needed, from around-the-clock production control to cutting-edge research.

The HR-3 is the pinnacle of the Discovery Hybrid Rheometer family. Featuring the world’s best available torque sensitivity and the all new patent-pending Optical Encoder Dual Reader, the HR-3 is the most advanced single-head rotational rheometer in the world.

The HR 10 builds on the field-proven accuracy and reliability of the Discovery Hybrid Rheometer family. Incorporating advanced technologies found on the HR 20 and HR 30 models, the HR 10 delivers industry-leading performance at a cost-effective price point that is suitable for a wide range of general viscosity and viscoelasticity measurements and for use in round-the-clock production control.

The HR 20 is an exceptional multi-purpose rheometer that can handle everything from cutting-edge research and development laboratories to continuous deployment in production control environments. With optional linear Dynamic Mechanical Analysis and the widest range of easy-to-use accessories, the HR 20 is ready to handle any set of challenges, from complementing shear rheology to testing solids under tension, compression or bending.

The HR 30 is a premier research-grade rheometer for scientists looking to advance the boundaries of material science by exploiting its unparalleled measurement sensitivity and accuracy. With integrated linear Dynamic Mechanical Analysis, the HR 30’s two-in-one instrument capabilities empowers users to explore entirely new possibilities for mechanical testing.

Dynamic Mechanical Analysis (DMA) for the Discovery Hybrid Rheometer

Counter-rotating stage for modular microscope

Patented optical encoder dual reader

Electrically heated plates environmental systems

Modular microscope accessory

TA instrumentsTA instruments provides innovative material characterization instruments that are widely used for research, analysis, and quality control in the evaluation of physical properties. We are the world’s leading supplier of thermal analysis, rheology, and microcalorimetry instruments, and our product areas have expanded to include thermal conductivity & diffusivity, dilatometry, rubber testing, and dynamic mechanical characterization.