Norwegian Seals
Toggle navigation menu
Home/R&D Laboratory/Universal Mechanical Tester
Instron 68TM-30 universal testing system
06/ 11

Mechanical testing

Universal Mechanical Tester

Instron 68TM-30

A universal testing machine applies a controlled load or displacement and records the response of the material.

The 30 kN dual-column frame with 1000 mm of travel covers highly elastic rubber and stiff engineering plastics.

A

Key specifications

30kN

Load capacity

0.001–1016mm/min

Test speed

−90 to 350°C

Environmental chamber

1000mm

Crosshead travel

Speed accuracy
±0.1 %
Data acquisition
Up to 5 kHz
Strain measurement
Video extensometer with DIC
Software
Bluehill Universal

Frame performance from Instron 68TM-30 specifications; travel, extensometry and chamber as installed.

B

Typical applications

  • Tensile strength, elongation and modulus
  • Stress–strain curves at service temperature
  • Compression and compression-deflection of seals
  • Tear strength of elastomers
  • Flexural properties of thermoplastics and composites
  • Testing of finished seals, backup rings and components
  • Property retention after aging and fluid exposure
  • Hyperelastic and elastic-plastic data for FEA
  • Inspection certificates (EN 10204 3.1) and NORSOK M-710 testing
  • Comparison of failed parts with reference material
C

Example outputs

Stress-strain curve of PEEK

1

PEEK stress–strain

A steep elastic rise, a clear yield point, then drawing until break.

Stress-strain curves of several elastomer compounds

2

Elastomer compounds compared

Nonlinear curves typical of rubber, each ending at its own tensile strength and elongation.