Tensile Test

Standards ISO 527-1/-2 and ASTM D 638 both specify tensile testing methods and are technically equivalent, but do not provide fully comparable results as specimen shapes, test speeds and result determination differ in several points.

A testXpert® II Standard Test Program allows users of Zwick testing machines to be confident of always using the correct test parameters, whether testing to ISO or ASTM.

Modulus determination, particularly to ISO 527, demands high accuracy (± 1 µm) from the extensometer employed. Zwick’s digital extensometers - Macro, MultiXtens, OptiXtens, plus the digital clip-on extensometers - fulfil the requirements completely or exceed them and allow measurement of displacements up to 700 mm in Classes 0.5 or 1.

Typical Products for this Application:

Testing Machines to 5 kN

Three models are available - 500 N, (112lbf), 1 kN (224 lbf), 2.5 kN (562 lbf) and 5 kN (1125 lbf).

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ProLine Testing Machine

The twin-column ProLine testing machine is specially designed for function-testing components and for routine materials testing.

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testXpert® II - Testing Software for Static Testing Systems

testXpert® II brings you the benefits of more than 90 years’ of materials testing experience and almost 20,000 successful testXpert® installations worldwide. Learn more about the intuitive, easy-to-use software which anticipates your needs.

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Temperature chambers

Temperature chambers are used in a temperature range of -80 up to +250 °C.

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Xforce last celler

Available only from Zwick Roell, high-precision Xforce load cells are used for all our load frame ranges. Their design is based on the principle of axial/rotational symmetry, making them highly insensitive to transverse forces.

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Specimen preparation for plastics

The Zwick 7101 manual cutting press is operated by an eccentric lever. The press is designed for mounting up to four cutting dies simultaneously. Centering templates for round and ring-shaped specimens are part of the standard equipment. It is also suitable for rectangular specimens up to 160 x 30 mm and squared specimens 75 x 75 mm (option).

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Øvrige maskiner

Et presist formet skår utformet i henholdtil standard, er viktig for riktig resultat i en skårslagstest. Notch Vision måler raskt og uten kontakt, ikke bare i sporet, men også dimensjonene til skårslagsprøven. Notch Vision måler i henhold til ISO (U-og V-skår), ASTM E 23 (Typer A og C) samt DIN 50115 (KLST-, DVM-og DVMK-prøver).

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Extensometers with high resolution

Extensometers with high measured value resolution are used to determine the tensile modulus in plastics testing and are available as mechanical contact systems or non-contact optical measurement systems. For lower testing volumes, Zwick supplies simple manually applied extensometers, while operator-friendly automatic attachment systems are available for frequent testing. Swiveling knife-edges allow these extensometers to remain attached until specimen break without being damaged.

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Long-Travel Extensometers

Long-travel extensometers are used to determine yield points when testing thermoplastics and for measuring strain at break with rubber and TPEs. Both mechanical contact and optical systems are available.

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