Servo-Hydraulic Universal Testing Machine
A new generation of Universal Testing Machine combining state of the art technology with proven reliability and precision for research and standard testing

The Servo-Hydraulic Universal Testing Machine (CRT-UTM-HYD) is a well designed, inexpensive machine specifically developed for the testing of materials used in pavement construction. A motorized, adjustable cross head reduces the time between test set-ups. The programmable temperature cabinet provides the possibility to perform frequency/temperature sweeps. Accurate waveforms are digitally generated and applied by the actuator producing repeatable conditions that are simulative of those created by moving or static vehicles. The actuator is double-acting allowing both compressive and tensile forces to be applied. Various systems are available for the measurement of the modulus of unbound materials.



  • EN 12697-26 Annex C
  • EN 12697-26 Annex D & E
  • ASTM D7369
  • ASTM D4123
  • ASTM D3497
  • AASHTO T324 (ex TP62) / T378 (ex TP79)

    Permanent Deformation:

  • EN 12697-25 Methods A & B
  • DD226

  • Simple Performance Tests:

  • Flow number
  • Flow time
  • NCHRP9-19; NCHRP9-29
  • Fatigue:

  • EN 12697-24 Annex E
  • ASTM D7313 DCT (Disc shaped compact tension test)
  • EN 12697-44 SCB (Semi circular bending test)

    Chinese Tests:

  • Bending; Creep; Splitting Test
  • T 0738-2011

    Unbound Materials:

  • AASHTO T307 (previously TP46)
  • NCHRP 1-28A
  • Key Features

  • Designed to perform a range of tests on asphaltic paving materials, sub-grade soils and granular sub-base materials
  • Double acting fatigue rated hydraulic actuator with integral stroke transducer
  • Utilises Star servo valve with ‘Sapphire Technology’
  • Motorised adjustable lower cross head with automatic hydraulic frame clamping
  • Integral programmable temperature controlled cabinet
  • Issued with UKAS accredited certificate of calibration for EN 12697-24; EN 12697-25, EN 12697-26
  • Accessories available to perform a range of standard and non standard test methods
  • Can be supplied with standard software to perform EN, ASTM and AASHTO test methods and universal software to design non standard test routines

  • Key Uses

  • Assessment of resistance to permanent deformation (rutting)
  • Measurement of stiffness modulus
  • Assessment of resistance to fatigue cracking
  • Resilient modulus of unbound materials
  • Mix design


  • 20 bit resolution, 5kHz per channel
  • Will accept any voltage transducer in any channel using TEDS Thermocouples
  • 1024 data points per cycle
  • Up to 16 digital input & output channels
  • Ethernet/USB/RS232 to PC communication


  • User friendly, intuitive and reliable Windows software developed using LabVIEW
  • Standard test software available to meet specific EN, ASTM and AASHTO test methods
  • Universal test software for the development of test methods using static, sinusoidal, haversine, square, triangular with user selected frequencies and data collection rates
  • Stored test data can be imported into a spreadsheet package to be analysed by the user
  • Utilities are included for transducer check, diagnostic routines and calibration
  • DIMENSION-Software

    *cDAC & Dimension optional. Please enquire for details.

    Model CRT-UTM-HYD25
    Maximum Load 25kN
    Load Transducer Variable dependant on capacity
    Actuator Stroke mm 50
    Frequency 0 to 70 Hz
    Electrical Supply¹ 3 Phase 415 Volts 50 Hz @ 16A
    Compressed Air 7 bar @ 100 L/min For accessories only
    Dimension mm (W x D x H) UTM & Cabinet:
    1000 x 1300 x 2400
    Power Pack: 630 x 580 x 890
    Working space required mm (W x D x H) 1100 x 2300 x 2600
    Estimated Weight Kg UTM & Cabinet 680
    Power Pack 60
    PC Included

    ¹ others available upon request

    Calibration & Maintenance

    Calibration, Annual Service and Maintenance Contracts are available for this device. UKAS accreditation to satisfy typed testing as described in EN 13108. Please enquire for further details. Note: This device should be checked and calibrated annually.

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

    Indirect tensile stiffness modulus and fatigue measurement system to perform EN 12697-26 (Annex C) and EN 12697-24 (Annex E) *. More Details
    Resilient modulus test system to perform AASHTO TP31 and ASTM D4123. More Details
    D7369-4 CRT-D7369
    Resilient modulus test system to perform ASTM D7369. More Details
    Test system to perform dynamic modulus according to AASHTO T342 (ex TP62) / Simple Performance Test. More Details
    Dynamic and static creep measurement system to perform EN12697-25 (Method A) and DD226. More Details
    Dynamic and static creep(Flow) measurement system with confining stress to perform EN12697-25 Method B. More Details
    Direct Compression and Tension measurement system to perform EN12697-26 Annexes D&E (DT-CY/CT-PR/DTC-CY) for CRT-UTMs. More Details
    CRT-T307 CRT-T307
    Triaxial system to perform AASHTO T307 on 200mm * Ø100mm specimens of unbound material. More Details
    CRT-T307+ CRT-T307+
    Triaxial system to perform AASHTO T307 on 300 mm * Ø150 mm and 200 mm * Ø100 mm specimens of unbound material. More Details
    Photo? N.A CRT-EN13286-7
    Unbound system to perform EN 13286-7 (used only with UTM-HYD)

  • CRT-EN13286-7M Mould
  • CRT-EN13286-7-MEM Membrane for triaxial cell 150x400mm- Pack of 2
  • Photo? N.A CRT-FT06-AIRDRYER
    Air dryer with 600 L/s flow rate and 3°C dew point
    Please complete the form below to download the datasheet