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Axial Extensometers with 50 mm (2 in.) Gage Length

These long-travel axial extensometers are ideal for test applications that require a measurement with a 50 mm (2 in.) gage length. They are well-suited for tensile testing of plastics, rubber and elastomers.

  • Tension
  • Compression
  • Composites
  • Plastics
  • Rubber
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FULL PRODUCT INFORMATION

  • Ideally suited for tensile testing of plastics, rubber, and elastomers
  • Long travel and mechanical stops enable you to leave it on the specimen through failure without damaging the unit
  • Activation forces as low as 30 g prevent specimen damage without slipping
  • Select the -21 or -51 model for cryogenic testing down to -269°C (-452°F)
  • All part numbers include hardened knife edges, quick attachment fixtures for flat and round specimens, and standard elastic attachment kits
  • Meets or exceeds requirements for calibration according to ASTM E83 Class B1 and ISO 9513 Class 0.5 standards

Metric Units

MODEL NUMBER

GAGE LENGTH

MEASURING RANGE (% STRAIN)

HEIGHT

LENGTH

TEMPERATURE MIN/MAX

ACTIVATION FORCE

ATTACHMENT KIT

PART NUMBER

634.25F-2x

50 mm

+50% / -10%

58.4 mm

151.4 mm

 

 

 

 

634.25F-21

 

 

 

 

-269°C / 65°C*

30 g

x

051-191-607

634.25F-24

 

 

 

 

-85°C / 120°C*

30 g

x

051-191-608

634.25F-25

 

 

 

 

-100°C / 175°C

45 g

x

051-191-609

634.25F-5x

50 mm

+50%

58.4 mm

151.4 mm

 

 

 

 

634.25F-54

 

 

 

 

-85°C / 120°C*

30 g

x

051-191-611

634.25F-55

 

 

 

 

-100°C / 175°C

45 g

x

051-191-612

 

US Customary Units

MODEL NUMBER

GAGE LENGTH

MEASURING RANGE (% STRAIN)

HEIGHT

LENGTH

TEMPERATURE MIN/MAX

ACTIVATION FORCE

ATTACHMENT KIT

PART NUMBER

634.25E-2x

2.00 in

+50% / -10%

2.3 in

5.96 in

 

 

 

 

634.25E-21

 

 

 

 

-452°F / 150°F*

30 g

x

051-191-601

634.25E-24

 

 

 

 

-120°F / 250°F*

30 g

x

051-191-602

634.25E-25

 

 

 

 

-150°F / 350°F

45 g

x

051-191-603

634.25E-5x

2.00 in

+50%

2.3 in

5.96 in

 

 

 

 

634.25E-51

 

 

 

 

-452°F / 150°F*

30 g

x

051-191-604

634.25E-55

 

 

 

 

-150°F / 350°F

45 g

x

051-191-606

*These units may be used at 25°C (50°F) higher than the listed temperatures, but only for durations less than 24 hours.