Servo-Pneumatic Universal Testing Machine (15.5kN)

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Servo-Pneumatic Universal Testing Machine (15.5kN)

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Part Number & Name
Price QTY
15.5kN Machine, Standard, 120/220V 50/60Hz
15.5kN Servo-Pneumatic Universal Testing Machine, cDAC, 120/220V 50/60Hz
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Servo-Pneumatic Universal Testing Machine (15.5kN)

This machine is a development of the NAT which was developed by Keith Cooper and Professor Steven Brown at the University of Nottingham. 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.


  • Low cost dynamic loading universal test system ideally suited to testing asphalt and unbound granular materials
  • High performance ceramic spool servo-valve
  • Double acting low friction actuator with integral stroke transducer
  • High quality stainless steel frame
  • Accessories available to perform a range of standard and non standard test methods

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 analyzed by the user. Utilities are included for transducer check, diagnostic routines and calibration.

cDACT™ Advanced Data Acquisition

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.

Maximum Force:3500lbf (15.5kN) dependent on air pressure)
Load Transducer:±4496lbf (20kN)
Actuator Stroke:1.2" (30mm)
Frequency:0 to 30 Hz
Electrical Supply:110/220V 50/60 Hz, 1 Ph
Compressed Air:7-10 bar (100-145psi)@ 21cfm (600 lpm)
Dimensions: 31" x 40" x 76" (780 x 1000 x 1920mm)
Working Space Required (WxDxH) :32.5" x 65" x 83" (825 x 1650 x 2100mm)
Desktop PC: Included


Part Number & Name
Price QTY
Temperature-controlled Cabinet
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