General Info

Servo-Pneumatic Universal Testing Machine – Rapid determination of modulus, permanent deformation and fatigue of bituminous mixtures using cylindrical specimens that are cored from the highway or prepared in the laboratory

The use of a high precision servo-pneumatic valve in conjunction with a low-friction actuator and sophisticated data acquisition and control, results in a performance that is equal to many servo-hydraulic systems.

Accurate, digitally generated waveforms are applied by the actuator producing repeatable stress variations in test specimens that are simulative of those in a road pavement due to moving traffic. The actuator is double-acting allowing both compressive and tensile forces to be applied. A triaxial cell system is available for the measurement of the resilient modulus of unbound materials.


  • EN 12697-24 Annex E
  • EN12697-25 Method A and B
  • EN 12697-26 Annex C and E
  • ASTM D4123
  • ASTM D7369
  • ASTM D7313
  • ASTM D8044
  • AASHTO TP 105
  • AASHTO TP124
  • AASHTO T307
  • AASHTO T322
  • AASHTO T342
  • NCHRP 9-19

Key Features

  • Low cost dynamic loading universal test system ideally suited to testing asphalt and unbound granular materials
  • Double acting low friction actuator with integral stroke transducer
  • High performance ceramic spool servo-valve
  • High quality stainless steel frame
  • Issued with 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

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

Control System and Software

This machine can be controlled using our Standard Acquisition and Control System along with Universal Software™. Universal Software™ is user friendly, intuitive and reliable Windows® software developed using LabVIEW™. 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.

Alternatively, our next generation digital data acquisition and control unit cDAC™ Advanced Data Acquisition System brought together in alliance with our flagship software DIMENSION™ gives you the power to perform the most demanding of tests with your materials testing equipment.
cDAC™, our next generation class leading digital controller is unparalleled in its field and suitable for advanced testing required for research.

Servo-pneumatic universal testing machine – specifications

Technical specifications are subject to change without notice.

Maximum LoadElectronically limited to 15.5kN
Load Transducer±20kN
Actuator Stroke mm30
Frequency Hz0 to 30
Electrical Supply¹220-240 Volts 50 Hz @ 13A
Compressed Air7-10 bar at 600 L/min
Dimension mm (W x D x H)Frame 360 x 400 x 740
Control Box 360 x 280 x 140
Working space required mm (WxDxH)825 x 1650 x 2100 when fitted in cabinet CRT-TCC
Weight (approx.) KgFrame 30
Control box 6

Contact Hylec Controls for a quotation today!

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