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Benkleman Beam

  • Manufactured by: Hoskin Scientific Limited

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Product Description:
  • Lightweight aluminum construction for easy portability and use at any test location.
  • Unique telescopic design for quick set up and storage during transport to the field.
  • Direct-reading dial indicators eliminate need for conversions or calculations during measurements.
  • Dial indicator vibrator system for accurate pavement measurements.

The Benkelman Beam measures the deflection of a flexible pavement under moving wheel loads in accordance with AASHTO test T-256.

The unit is designed for maximum operator convenience and accuracy.The unit is made from lightweight aluminum and features a telescoping design to reduce weight and storage space.The direct-reading dial indicator eliminates the need for any conversion or field calculations and the vibrator system assures accurate pavement measurements.


Main Body 55" (1,397 mm) long, black finish aluminum.
Probe Beam Aluminum, 8 ft. (2.4 m) long, telescopes into case for storage.
Probe Fulcrum. Ball pivot bearing, gives lever ratio of 2:1.
Vibrator System. Operating switch mounted on top of instrument section (requires 4 “D” size batteries).
Dial Indicators. Compensated for direct reading (not included).
Leveling Wheel. Adjusts beams to proper elevation.
Open Length. 12 ft. (3.7 m) l.
Weight. Net 35 lbs. (15.9 kg).