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Indentation Testing Machine

A high quality machine for the indentation test with advanced auto data logging software to record and present the results via real time charts

The Indentation Testing Machine CRT-IND for determining the resistance to penetration of road and mastic asphalt by loading a cylindrical pin and measuring the indentation in a sample over a given time. The CRT-IND comprises of a frame incorporating a stainless steel water bath with drain facility, method of applying the 500 Newton load and means of recording the test results.The apparatus conforms to the requirements of EN 12697-20.The maximum nominal size of the aggregates should be less or equal to 16 mm. It comes with optional auto data logging software which saves test data files, shows a graphical representation of the test in real time, reduces operator involvement and thus eliminates chances of error.


  • EN 12697-20

Key Features

  • Auto data logging software available which:
    – Reduces operator involvement
    – Eliminates chances of error
    – Generates graphical representation of the test in real time
    – Saves operator data, sample information data, time, and pertinent information relevant to the specific sample on test
    – Reduces test costs significantly

    • Heater element to comply with both temperatures requested by EN standard
    • Stainless steel
    • Temperature controlled water bath with drain facility
    • Digital indicator with digital communications.
    • CE Marked and Made in United Kingdom

    Key Use

    • Determines the depth of indentation.
    • To test the behavior of mastic asphalt, rolled and other such asphalts.


    • CRT-INSOFT, A Cooper Technology designed and developed software package that allows for the automatic capture to PC of test data from the indentation test at the two required test temperatures* and over the four time durations. This software shows a graphical representation of the test in real time, storing the data in text files that can subsequently be opened in Excel.

    *Additional function allows the user to input a temperature between 5°C (or ambient if higher) and 95°C.

  • Accessories

    Accessories are not included in the price of main device (unless stated otherwise) and may be purchased separately if required.

    CRT-INSOFT – Indent test data-logging software inc. PC Interface
    – Saves Data from the Indent Test
    – Graphical Representation of the test in real time
    – Allows user to input between 5*C – 95*C
    – Laptop included with the Software
    CRT-IND-CAL Calibration Block
    CRT-IND-CUBM Cube Mould
    CRT-IND-PTM69 Penetration Test Mould 69mm (adjustable mould)
    CRT-IND-PIN-100 (Spare Part) Indenter Pin 100
    CRT-IND-PIN-500 (Spare Part) Indenter Pin 500


    Technical specifications are subject to change without notice.

    Preliminary Force (25 ± 1) N
    Total Test Force (525 ± 1) N
    100 mm2 Indentor Pin Diameter mm (11.3 ± 0.1)
    500 mm2 Indentor Pin Diameter mm (25.2 ± 0.1)
    Indentor Pin length ≥20 mm
    Indentor Pin Thread Length 8 mm (approx.)
    Deflection of Apparatus Upon Application of Force mm <0.01
    Base Plate Thickness mm >20
    Water Tank Capacity 25 litres
    Water Temperature Range Ambient or 5 °C (whichever is higher) to 95 °C
    Water Temperature Stability ± 0.5 °C
    Digital Indicator Resolution mm 0.01
    Digital Indicator Communications Protocol Digimatic via USB 2.0
    Weight Kg 75 (approx.)
    Dimensions mm (W x D x H) 500 x 800 x 1000
    Electrical Supply 240 VAC, 1φ, 50/60 Hz, 4.5 A, 1 kW

    ¹ others available upon request

    Calibration & Maintenance

    Calibration, Annual Service and Maintenance Contracts are available for this device. We can also offer UKAS calibrated temperature monitoring at an extra cost.Note: This device should be calibrated and checked annually. Please enquire for further