Stand Alone 4 Point Bending Beam

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Specifically designed to meet AASHTO and ASTM standards

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User friendly software for determination of fatigue resistance and stiffness modulus

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On-specimen measurement system removes errors due to frame flexure

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Sinusoidal controlled strain or controlled stress fatigue test modes

Accurate flexural bending system

The Stand Alone Four Point Bending Beam Machine uses advanced servo pneumatic technology and a high-speed digital data acquisition and control system together with user-friendly software. During testing both graphical and tabular data are displayed on screen and test data is stored to disc in Microsoft® Excel® compatible format. The clamps are at 118.5mm (4.67 inch) centers (the distance between the outer clamps is 335.6mm (14 inches) according to AASHTO specifications but the height and width of the beam can be varied). 

  • Frequency range 0.1 to 30Hz¹ 
  • Low cost pneumatic stand alone four point bending machine 
  • Low-friction actuator and high performance ceramic spool servo-valve 
  • On-specimen measurement system removes errors due to frame flexure 
  • Designed for AASHTO beam sizes 
  • Sinusoidal controlled strain or controlled stress fatigue test modes 
  • Constant torque motorized specimen clamping to eliminate errors due to localized beam indentation 
  • Self-contained loading system 
  • User friendly software for determination of fatigue resistance and stiffness modulus 
  • Capable of performing healing, modulus, fatigue multi-stage testing and camera triggering 

 

Force Transducer

2248lbf (10kN)

Specimen Transducer Range

± 0.04″ (1mm)

Actuator Stroke

0.4″ (10mm)

Frequency

0.1 to 30 Hz

Electrical Supply

110/220V 50/60Hz, 1 Ph

Compressed Air

7-10 bar (100-145psi @ 21cfm (600 lpm)

Test Frame

Dimensions

18″ x 7.5″ x 22.5″ (440 x 190 x 570mm)

Data Acquisition

Enclosure

15″ x 11″ x 5.5″ (360 x 280 x 140mm)

Working Space Required (WxDxH)

32.5″ x 65″ x 83″ (826 x 1650 x 2100mm)

Desktop PC

Included

 

A low cost, accurate flexural bending system which facilitates the rapid throughput of modulus and fatigue tests

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