Instron’s Model M3 lever arm test machine is designed as low cost solutions
for long-term creep and stress rupture testing applications of metallic materials
in accordance with ASTM E139 and other similar international testing standards.
These tests can run from only a few hours up to and exceeding 10,000 hours. The
long duration of these tests make a lever arm loading systems both cost effective
and highly reliable.
The standard 3,000 kg (6,000 lbf) capacity Model M3 machine design meets or exceeds
the requirements for typical creep or stress-rupture test applications.
Features
- Lever arm loading system design with 16:1 ratio
- Motorized draw-head assembly automatically compensates for specimen elongation and
keeps arm lever for improved load accuracies
- Load accuracy of +/- 0.5%
- Room temperature and elevated temperature systems available
- Furnace and chambers available with temperature ranges from -150 oC (-238oF)
to 1,200oC (2192oF) in common air environments
- Numerous high temperature pull rods, specimen holders, furnace systems and extensometers
available for creep and stress-rupture applications. Many of which are also adaptable
to hot tensile testing applications on universal testing machines.
The Model M3 machine is by far the most commonly supplied capacity machine in today’s
market. However, in addition to this model, there are a variety of other higher
capacity lever arm machines that were designed over the companies’ 50-year
legacy in the fields of creep and stress-rupture testing. These legacy models continue
to be offered upon request and application review. In addition to the creep and
stress-rupture testing applications the legacy models of lever arm machine design
provides a economical method of long term maintaining of constant loads for the
evaluation of a materials time dependent load properties such as the hydrogen embrittlement
test applications (ASTM F519.)
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