dynamic mechanical analysis

DMA 523 Eplexor® High-Force Series

For Large and High-Modulus Samples

The instruments in our high-force Eplexor® series offer static and additional dynamic force levels from max. ± 2000 N to max. ± 4000 N, and are thus the perfect choice for investigating the dynamic-mechanical (or only static) properties of rigid samples as well as of specimens with larger dimensions – even component parts.

Thanks to their modular design, high-force DMA instruments can accommodate add-ons to additionally carry out tests on such properties as fatigue, heat build-up, blow-out and Rolling ResistanceThe rolling resistance is a force resisting the motion when a body is rolling across a surface. This determines the slip resistance of, e.g., car or truck tires.rolling resistance.

All testing machines in this series are based on standards such as DIN 53513, DIN 53533, ISO 6721/1, ISO 6721/4, ISO 6721/5, ISO 6721/6, ISO 4664, ISO 4666/3, ISO 4666/4, ASTM D623, ASTM D4065, and ASTM D4473.

The following high-force DMA instruments are available:

Instrument TypeMax. Static ForceMax. Dynamic Force
DMA 523 Eplexor® (2000 N)6000 N± 2000 N
DMA 523 Eplexor® (4000 N)6000 N± 4000 N

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Set for the Future
The DMA Eplexor® series allows for easy upgrades to the basic instruments with a wide variety of additional options or accessories. Force sensors can be exchanged. 

Unsurpassed Flexibility
With the appropriate hardware and/or software add-ons (which can also be retrofitted), the DMA 523 Eplexor® can be converted into, for example, a Goodrich flexometer (ASTM D623), a 24/7 system with automatic sample changer, or an instrument for high-temperature application.  

Non-Stop Operation with the Second-to-None NETZSCH Autosampling Systems
By adding one of the two available autosampling systems (ASC – automatic sample changer or MPAS – multi-purpose automatic sample changer), any DMA Eplexor® can be converted to a fully-automatic testing system for up to 160 samples, supporting bending, tension, shear and compression modes. The unrivaled MPAS even facilitates the insertion of sample holders in arbitrary order. 

Designed to Investigate Highly Stiff Materials
Based on a separation between the static and the dynamic drive in combination with blade springs, total force levels of up to 16000 N (static + dynamic) can be applied to the sample, enabling optimal conditions for studying metals, ceramics or composites.  

Maximum Safety during Fatigue and Tensile Tests
As fatigue or tensile tests at the highest force levels are often destructive experiments, the electrodynamic shaker requires effective shock absorption. This is assured by the unique blade spring system featured in NETZSCH instruments.  

Highly Economic LN2 Cooling
Optimized cooling control allows for low liquid nitrogen consumption while working at sub-ambient temperatures.

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Technical Data

Temperature range
-160°C to 500°C 
Static force
6000 N 
Frequency range
0.0001 Hz to 100 Hz  

Dynamic force range:
± 2000 N, ± 4000 N (depending on instrument type; see table)

Force sensor:
interchangeable; nominal forces available up to 12000 N*

Blade springs:
for compensating of high static forces and for extending the operation range

Static displacement: 
max. 70 mm

Dynamic displacement:
up to ± 15 mm (DMA 523 Eplexor® 2000N / 4000N); each instrument can be equipped with two StrainStrain describes a deformation of a material, which is loaded mechanically by an external force or stress. Rubber compounds show creep properties, if a static load is applied.strain transducers

Additional measuring modes:
CreepCreep describes a time and temperature dependent plastic deformation under a constant force. When a constant force is applied to a rubber compound, the initial deformation obtained due to the application of the force is not fixed. The deformation will increase with time.creep, RelaxationWhen a constant strain is applied to a rubber compound, the force necessary to maintain that strain is not constant but decreases with time; this behavior is known as stress relaxation. The process responsible for stress relaxation can be physical or chemical, and under normal conditions, both will occur at the same time. relaxation, fatigue, heat build-up, Curing (Crosslinking Reactions)Literally translated, the term “crosslinking“ means “cross networking”. In the chemical context, it is used for reactions in which molecules are linked together by introducing covalent bonds and forming three-dimensional networks.curing, tensile tests

Automatic sample length/thickness determination
... in tension, compression and bending geometry

Automatic sample changer:
max. 160 samples of the same geometry (ASC), also for differing sample holder geometries (MPAS)


* The instrument allows for measurements up to 10000 N.

Product Information

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