Highlights
The testing instrument DMA 503 Eplexor® up to ±500 N enables the dynamic mechanical (or static) characterization of a wide range of different materials including elastomers and polymers, composites, metals, glasses, ceramics, biomaterials, foods, adhesives, and liquids.
The modular design of the high force DMA systems allows for measurements in the tension, compression, bending and shearing modes. The testing machines in this series differ from each other mainly in terms of their maximum dynamic force ranges of ±100 N, ±150 N and ±500 N.
Various add-on options make these testing machines a safe investment for the long-term.

Flexible and set for the future
...by means of a variety of force and 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 sensors as well as furnaces which allow for easy upgrades to the basic system at any time after the first installation.
High force levels
...allowing for static loads up to 1500 N and dynamic loads up to ± 500 N; especially meaningful for investigations on curable resins, elastomers, composites, metals, glasses or ceramics.
Two independent drives
...featuring a servo motor for static and a shaker for dynamic loads.
Interchangeable force sensors
...which can be easily changed out by the operator; nominal loads available ranging from ±10 N to ±2500 N.
24/7 operation via the Automatic Sample Changer
...for tension, compression and bending samples across the entire temperature range around the clock.
Optimized for temperature sweeps on large samples
...thanks to uniform heating of even large samples with low Thermal ConductivityThermal conductivity (λ with the unit W/(m•K)) describes the transport of energy – in the form of heat – through a body of mass as the result of a temperature gradient (see fig. 1). According to the second law of thermodynamics, heat always flows in the direction of the lower temperature.thermal conductivity (e.g., large rubber specimens).
Highly economicLN2 cooling
...for low liquid nitrogen consumption.
Accessories
Sample holders for a variety of applications
...from liquids via reinforced thermosets to metals and ceramics - all materials can be investigated with the DMA 503 Eplexor®.
Humidity Generator (HYGROMATOR® )
...add-on serves to investigate the water uptake of samples such as plastics and biopolymers. With the humidity generator, it is possible to create relative humidity values of between 5% and 95% in the temperature range between 5°C and 95°C.
Immersion Bath
...even for measurements in the tension, compression and bending mode; for the investigation of aging or plasticizer effects caused by contact with water or oil.
Cooling options
...two different cooling systems are available including liquid nitrogen cooling to -160°C and air chiller to -60°C to use with the standard furnace.
Method
The Dynamic Mechanical Thermal Analyzer applies forced periodic loads to the sample and analyzes the phase shift between this primary excitation and the material’s response. The response of an ideal elastic system (e.g., spring) on a sinusoidal load at a given frequency is of the same frequency and exactly in phase with the excitation. The situation changes in a real system: A phase shift (δ > 0°) between the primary excitation and response of the same frequency occurs in the case of linear visco-elastic materials (e.g., polymers).


Elastic and non-elastic properties inherently describe the dynamic mechanical performance of the material. The storage modulus E’, the real part of the Complex ModulusThe complex modulus consists of two components, the storage and the loss moduli. The storage modulus (or Young’s modulus) describes the stiffness and the loss modulus describes the damping (or viscoelastic) behavior of the corresponding sample using the method of Dynamic Mechanical Analysis (DMA). complex modulus E*, represents the elastic component; the Viscous modulusThe complex modulus (viscous component), loss modulus, or G’’, is the “imaginary” part of the samples the overall complex modulus. This viscous component indicates the liquid like, or out of phase, response of the sample being measurement. loss modulus E’’, the dissipated part, is the imaginary part. Depicted in the complex plane, the loss and storage modulus are the projections of the Complex ModulusThe complex modulus consists of two components, the storage and the loss moduli. The storage modulus (or Young’s modulus) describes the stiffness and the loss modulus describes the damping (or viscoelastic) behavior of the corresponding sample using the method of Dynamic Mechanical Analysis (DMA). complex modulus onto the real and imaginary axis. The tangent of the angle between the real axis and the Complex ModulusThe complex modulus consists of two components, the storage and the loss moduli. The storage modulus (or Young’s modulus) describes the stiffness and the loss modulus describes the damping (or viscoelastic) behavior of the corresponding sample using the method of Dynamic Mechanical Analysis (DMA). complex modulus (E*) represents the phase shift (tanδ) between the two.
Specifications
Technical Data
Temperature Range
Static force range
Frequency range
- Dynamic force range: ± 500 N, ± 150 N, ± 100 N
- Interchangeable force sensor: ±10 N to ±2500 N
- Blade springs: counteract the static forces and allow for independent superposition of the dynamic forces
- Static displacement: 80 mm (50 mm with furnace)
- Dynamic displacement: up to ± 6 mm (depending on the DMA 503 Eplexor® model)
- Supplementary analysis modes: Master Curve, Segments, 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/Relax, Load Sweep, Fatigue, Time Sweep, Temperature Sweep, Frequency Sweep, Temperature-Frequency Sweep Universal Test, Hysteresis, Pulse
- Max. sample dimensions (inside the standard furnace):
- Tension: max. free length 50 mm x10 mm x 10 mm
- Shear: ∅ 4 mm to 20 mm (standard: 10 mm)
- 3-point bending: support span 20 / 30 / 40 / 50 / 60 / 70 mm
- Automatic sample length detection possible in tensile, compression
Software
The comprehensive DMA 503 Eplexor® software is based on Windows operating systems. The extensive software package comprises data and curve analyses, hysteresis representation, master curve calculations, etc. It also includes specific templates for tension, compression or bending tests.
The software features include:
- Frequency sweep of 0.0001 Hz to 100 Hz (optional up to 200 Hz for fatigue)
- Temperature sweep (controlled temperature variation at fixed frequency)
- Time sweep from 1 s to107 s
- Correlated temperature and frequency sweep at IsothermalTests at controlled and constant temperature are called isothermal.isothermal steps
- Correlated dynamic and static 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 amplitude sweeps; equidistantly or logarithmically subdivided
- Master curves (TTS, WLF, numeric mastering), segment tests
- Evaluation of Complex ModulusThe complex modulus consists of two components, the storage and the loss moduli. The storage modulus (or Young’s modulus) describes the stiffness and the loss modulus describes the damping (or viscoelastic) behavior of the corresponding sample using the method of Dynamic Mechanical Analysis (DMA). complex modulus (E*, G*), storage modulus (E’, G’), Viscous modulusThe complex modulus (viscous component), loss modulus, or G’’, is the “imaginary” part of the samples the overall complex modulus. This viscous component indicates the liquid like, or out of phase, response of the sample being measurement. loss modulus (E’’, G’’) damping factor (t and δ) by temperature sweeps, 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 and force sweeps, time sweeps, Glass Transition TemperatureThe glass transition is one of the most important properties of amorphous and semi-crystalline materials, e.g., inorganic glasses, amorphous metals, polymers, pharmaceuticals and food ingredients, etc., and describes the temperature region where the mechanical properties of the materials change from hard and brittle to more soft, deformable or rubbery.glass transition temperature, and optional 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, energy loss, hysteresis, Payne/Mullins effect analysis
- Prediction of the 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 of tires (optional)

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Related Devices
Downloads & Media
Brochure and Datasheet
Videos
Setting New Standards up to High Forces with our DMA 503 Eplexor®
Our latest instrument offers dynamic force ranges up to 500 N and static loads up to 1500 N, ideal for testing large or stiff samples. Designed for elastomers and reinforced materials, it features flexible roller bearings for bending tests and interchangeable plates for tensile testing. The high-temperature version can reach temperatures up to 1500°C, enabling precise measurements.
Better Understanding of a Material's Mechanical Behavior
When testing the viscoelastic behavior of polymers, the forces applied are critical. From very low to very high forces, Dr. Wiebold Wurpts will give a brief overview of the new developments of our DMA Eplexor® product line.