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I-FIT (IL - Flexibility Index Tester)
I-FIT (IL - Flexibility Index Tester) for construction materials testing

    I-FIT (IL - Flexibility Index Tester)


    Mechanical Configuration

    The Troxler I-FIT (Illinois - Flexibility Index Tester) machine is completely contained on a rolling portable test frame that is approximately 31.5" L x 20" D x 34" H. The fixture is designed to apply load to a Semi-Circular Beam (SCB) specimen through a pivoting head and roller bearing pins. The system is designed to meet the most current standard for TP105 Illinois.

    Servo Hydraulic Actuator

    The system includes a 4500lbf actuator with low friction seals. It utilizes closed loop feedback from the load cell and magneto restrictive position sensors for stroke and load line displacement (LLD).

    Load Line Displacement Measurement

    The LLD position sensor utilizes a non-contacting method to measures displacement of SCB specimen at the loading head.

    Controls and Software

    It includes a custom program for I-FIT test operation. Every test has a text data file created for easy to use post processing as well as printouts from the test during operation. In addition, a Multi-Test Language (MTL) compiler is provided to allow the user to create custom programs or modify custom programs and store as a callable application.


    • Accuracy - patented 2 CUDT system
    • Immediately prints and plots test summary
    • Includes ICT software for determining Flexibility Index (FI)
    • Three second runtime
    • Simple sample preparation
    • Most advanced hydraulics on the market


     Dimensions (L x W x H)  31.5 in x 20 in x 58.5 in
     Weight  350 lbs
     Actuator Speed  1800 in/min
     Force  4500 lbf
     Stroke  2 in or 50 mm
     Electrical Source  115 VAC / 20 Amp receptacle
     Data Output  Test Advisor software or ICT software output