Advanced Rheometer:
MCR 703
- Advanced rheometer with unrivaled variety of working modes
- Highest precision for sophisticated research
- Expansion of material characterization with counter-movement mode
- DMA in torsion, tension, bending, and compression
- 200+ accessories for endless possibilities in research and development
MCR 703 MultiDrive and MCR 703 Space MultiDrive are the most versatile advanced rheometers available. Alongside all the standard features of the MCR 503, they can also be equipped with an additional lower drive unit. This means you can perform rheological tests with two torque transducers and drive units at once, opening up multiple possibilities for your research. There are no limitations regarding test modes, measuring systems, accessories, temperature devices, and measurement precision. Additionally, MCR 703 Space MultiDrive offers maximum working space, making it easy to work with accessories and additional instruments.
Key features
One rheometer, all rheological working modes
This is the perfect rheometer for advanced measurement-precision requirements. A combination of two drive units enables you to perform rheological measurements in Combined Motor Transducer (CMT) mode and in Separate Motor Transducer (SMT) mode. Using a single air-bearing-supported EC motor in CMT mode, you can make the most of the motor’s real-time position control (TruStrain) and perform ‘classic’ stress-controlled tests. In SMT mode, one motor is operated solely as a torque transducer, while the other is used as the drive unit to get the purest results. This makes the advanced rheometer ideal even for transient regimes such as stress relaxation, start-up shear measurements, or oscillatory tests across a wide frequency range.
* Measuring
** Driving

Push the limits of material characterization
In counter-movement mode, the advanced rheometer employs both air-bearing-supported EC motors as drive units, as well as torque transducers which move in opposite directions. Create, for example, a fixed stagnation plane in a sample while visualizing with a microscope for advanced structure analysis throughout the full measurement. In combination with the universal extensional fixture, this mode also permits extensional tests down to minimal measured torques and up to unachieved elongations with Hencky strains larger than eight. With these capabilities, this advanced rheometer offers more comprehensive characterization of strain hardening. The counter-movement mode simply doubles the speed score up to a maximum speed difference of 6,000 rpm.

DMA in torsion, tension, bending, compression, and more
MCR 703 is more than just a rotational rheometer – it’s a multifunctional advanced rheometer that also supports dynamic mechanical analysis (DMA). By replacing the lower rotational drive with a linear drive, it performs DMA in bending or compression using geometries such as three-point-bending, cantilever, or parallel plates. Furthermore, in combination with geometries for films, fibers, and rectangular and cylindrical samples, the linear drive can be used to perform DMA in tension, while the upper rotational drive is used for DMA in torsion. This also enables axial-torsional DMA on a single specimen within a single test definition, and allows determination of the Poisson’s ratio and fast direction-dependent characterization of anisotropic materials.

Previously unthinkable applications
MCR 703 Space MultiDrive takes the exceptional performance of our flagship rheometer MCR 703 MultiDrive even further. It's engineered to offer unique modularity, flexibility, freedom, and functionality for any type of rheology and combined methods. The open instrument design maximizes working space so you can connect MCR 703 Space MultiDrive with a variety of additional external setups for advanced material characterization (e.g., confocal microscopy and rheology at the same time). In addition, the rheometer's separate electronics box now makes it possible to set up the rheometer where space is limited or in a laboratory glovebox, even when using inert gas (nitrogen, argon) atmosphere (e.g., for high-temperature measurements of samples with a certain hazard level).

More than 200 accessories
MCR 703 MultiDrive and MCR 703 Space MultiDrive can be paired with any measuring system, temperature device, and/or application-specific accessory recognizable from the Anton Paar MCR series, in order to carry out standard and sophisticated rheological analyses. This allows the testing platform to be used not only for rheology and DMA but also as a powder rheometer, tribometer, and universal testing machine. The Toolmaster feature automatically recognizes and configures all connected devices and measuring systems. Additionally, the QuickConnect function allows one-handed connection of the measuring systems. This modularity makes our advanced rheometers highly flexible and ensures that adaption of the configuration to your needs is straightforward.

Specifications
MCR 703 MultiDrive MCR 703 Space MultiDrive | ||
---|---|---|
Configuration with 1 EC motor | Configuration with 2 EC motors | |
Bearing design | Air, fine-pored carbon | |
Motor design | Electronically commutated (EC) permanent magnet synchronous motor | |
Displacement transducer | High-resolution optical encoder | |
Normal force measurement design | 360° capacitive sensor, non-contacting, fully integrated in bearing | |
Working modes | CMT | CMT, SMT, Counter-Movement1) |
Min. torque (rotation) | 1 nNm | 1 nNm |
Min. torque (oscillation) | 0.2 nNm | 0.2 nNm |
Max. torque | 230 mNm | 230 mNm |
Torque resolution | 0.05 nNm | 0.05 nNm |
Angular deflection resolution | < 1 nrad | |
Min. angular velocity2) | 0 rad/s | |
Max. angular velocity / max. speed | 314 rad/s 3,000 rpm | 628 rad/s 6,000 rpm |
Min. frequency3) | 2 Hz x 10-8 Hz | |
Max. frequency | 200 Hz | |
Normal force range | 0.001 N to 50 N | |
Gap resolution | 0.0625 µm | |
TruStrain | ✓ | ✓ |
Ready for DMA in tension, bending, and compression | ✓ | ✓ |
Ready for axial-torsional DMA4) | ✓ | ✓ |
Active thermal management of motor | ✓ | ✓ |
With exposed support plate5) | ✓ | ✓ |
Dimensions (W x H x D) | MCR 703 MultiDrive: 453 mm x 775 mm x 673 mm MCR 703 Space MultiDrive: 300 mm x 775 mm x 584 mm Electronic box: 333 mm x 231 mm x 576 mm | |
Weight | MCR 703 MultiDrive: 50 kg MCR 703 Space MultiDrive: 52 kg Electronic box: 16 kg | MCR 703 MultiDrive: 60 kg MCR 703 Space MultiDrive: 62 kg Electronic box: 16 kg |
Trademarks: RheoCompass (917 7015), MultiDrive (16731581), TwinDrive Rheometry (7081128), SmartPave (16731556), T-Ready (9176983), Toolmaster (3623873), TruRate (9176967), TruRay (15273915), TruStrain (9176918)
Patents: US Pat. 8453496, 9766172, 9574983, 10908058, 8132445, 10031057, 9702809, AT Pat. 513661, DE Pat. 102015100714
✓ included | o optional | x not included
1) US Pat. 8453496
2) In controlled shear stress (CSS) mode. In controlled shear rate (CSR) mode depending on measuring point duration and sampling rate.
3) Theoretical value (duration per cycle = 2 years).
4) US Pat. 9574983 and US Pat. 10908058.
5) MCR 703 Space MultiDrive: Unique maximized workspace below the rheometer support plate and on both sides of the instrument
Standards
ASTM
DIN
DIN EN ISO
EN
ISO
European Pharmacopoeia (Ph. Eur.)
US Pharmacopoeia (USP)
Standards
ASTM
DIN
DIN EN ISO
EN
DIN EN
ISO
European Pharmacopoeia (Ph. Eur.)
US Pharmacopoeia (USP)
Anton Paar Certified Service
- More than 350 manufacturer-certified technical experts worldwide
- Qualified support in your local language
- Protection for your investment throughout its lifecycle
- 3-year warranty
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If you do not find the item you require, please contact your Anton Paar sales representative.

Rheometer Software:
RheoCompass
MCR 703 MultiDrive
- Software for your Anton Paar rheometer
- Predefined templates and analysis methods
- Report and automation functions
- Customized test definitions and analysis methods in detail
- Compliant with QM regulations such as GLP/GMP and 21 CFR Part 11

Accessory for MCR and RheolabQC:
Flexible Cup Holder
MCR 703 MultiDrive | Space MultiDrive
- Accessory for “Extended Material Characterization"
- Holds, for example: paint cans, yogurt cups, other containers
- Can be combined with stirrers, concentric cylinder geometries, and a Pt100 temperature sensor

Temperature Control for MCR:
Liquid Temperature Devices (LTD)
MCR 703 MultiDrive | Space MultiDrive
- For measurements at constant temperatures from -30 °C to +180 °C
- For parallel-plate, cone-plate, concentric cylinder, and double-gap measuring geometries

Temperature Control:
Peltier Systems with TruGap™
MCR 703 MultiDrive
- TruGap™ measures the real gap size to ensure accurate measurements even if the measuring temperature changes
- No loss of accuracy: set the zero-gap at any temperature you want
- Reduces waiting times: T-Ready™ detects when temperature equilibrium is reached and starts the test automatically

Accessory for MCR:
Cone Partitioned Plate
MCR 703 MultiDrive | Space MultiDrive
- For viscoelastic samples when performing LAOS and transient tests
- Reduces the impact of edge fracture effects
- Reduces errors due to sample trimming

Temperature Control:
Convection Temperature Devices (-160 °C to +1000 °C)
MCR 703 MultiDrive | Space MultiDrive
- For temperature-controlled rheological and DMA measurements performed on melts, solids, films, and fibers from -160 °C to +1000 °C
- Homogeneous temperature distribution for accurate and stable results
- For MCR measuring systems: parallel-plate, cone-plate, DMA in torsion or extension, controlled relative humidity, and more

Accessory for MCR:
Dielectric Spectrometer
MCR 703 MultiDrive | Space MultiDrive
- Combine rheology and dielectric spectroscopy
- Study a material’s response to an applied electric field
- Gain information on a material’s structure and behavior

Accessory for MCR:
Electrorheological Device
MCR 703 MultiDrive | Space MultiDrive
- Accessory for “Additional Parameter Settings”
- Characterization of electrorheological fluids
- Electric field of up to 12.5 kV can be applied

MCR Rheometer Setups for:
Envelope Density
MCR 703 MultiDrive | Space MultiDrive
- Envelope density setup from the leader in powder characterization
- Buy an envelope density device and benefit from full rheometer functionality
- Budget-friendly option for envelope density determination
- 21 CFR Part 11-compliant
- Automatic detection of setup to save time and eliminate errors

Accessory for MCR:
Humidity Option
MCR 703 MultiDrive | Space MultiDrive
- Accessory for “Additional Parameter Settings”
- Controls the impact of the relative humidity on a material’s rheological behavior

Accessory for MCR Temperature Devices:
Low-Temperature Options
MCR 703 MultiDrive | Space MultiDrive
- Combinable with electric and convection temperature devices
- Tailor-made solutions for low temperatures down to -15 °C, -90 °C, or -170 °C
- Toolmaster functionality for automatic system configuration and error-proofing

Option for a Rheometer with two EC Drives:
Rheo-Microscopy Setup
MCR 703 MultiDrive | Space MultiDrive
- Flow visualization in the stagnation plane
- Characterization of microstructural changes at higher shear rates
- Direct assignment of images and videos to rheological data

Accessory for MCR:
Particle Imaging Velocimetry
MCR 703 MultiDrive | Space MultiDrive
- Accessory for structure analysis and rheo-optics
- For visualization of flow fields

Temperature Control for MCR:
Peltier Systems
MCR 703 MultiDrive | Space MultiDrive
- Effective and convenient heating and cooling
- Air cooled Peltier hood and plate; sustainable and cost efficient
- Temperature control with minimized temperature gradients from -50 °C to +220 °C
- Modular system for combination with rheo-optics accessories
- For cone-plate, parallel-plate, and cylinder measuring systems

Accessory for MCR:
Pressure Cell
MCR 703 MultiDrive | Space MultiDrive
- For investigation of the effect of pressure on rheological properties
- Unique pressure range of up to 1,000 bar
- Choose between gas or liquid pressurization

Rheo-Confocal Microscopy:
MCR 703 Multidrive Space and Rheo-Optics
MCR 703 MultiDrive | Space MultiDrive
- Accessory for structure analysis: Rheology meets confocal microscopy
- Highly versatile MCR rheometer with maximum working space, for sophisticated research

Optical Accessory for MCR:
Rheometer-Infrared Spectrometer Adapter
MCR 703 MultiDrive | Space MultiDrive
- Accessory for structure analysis and rheo optics
- Connects your infrared spectrometer to an MCR rheometer
- Investigates chemical composition and rheology

Accessory for MCR:
Rheometer Geometries
MCR 703 MultiDrive | Space MultiDrive
- Wide range of measuring systems for RheoLabQC and the MCR rheometer series
- Concentric-cylinder, double-gap, cone-plate, and parallel-plate systems; vane geometries and spindles; Krebs spindles
- Customized solutions upon request

Accessory for MCR:
Starch Cell
MCR 703 MultiDrive | Space MultiDrive
- Accessory for extended material characterization
- Starch pasting cell for analysis of starch gelatinization or pasting behavior
- Max. heating rate: 60 °C/min; max. cooling rate: 45 °C/min

Optical Accessory for MCR:
UV Light Curing System
MCR 703 MultiDrive | Space MultiDrive
- Accessory for additional parameter setting
- For the investigation of UV-curing reactions
- Simultaneous characterization of rheological behavior and UV-light-initiated curing
- Built-in temperature control
- LED and mercury light sources available