Servo-Hydraulic Universal Testing Machine
description : 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 crosshead reduces the time between test setups. 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.
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 crosshead with automatic hydraulic frame clamping
- Integral programmable temperature controlled cabinet
- Issued with UKAS accredited certificate of calibration for EN 12697-24; EN12697-25, 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 andAASHTO test methods and universal software with which 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
specification :
| Model | CRT-UTM-NU | CRT-UTM-HYD25 | CRT-UTM-HYD100/130 |
| Maximum Load | Electronically limited to 15.5kN | 25kN | 100 – 130 kN |
| Load Transducer | ±20kN | Variable dependant on capacity | 100 – 130 |
| Actuator Strokemm | 30 | 50 | 100 |
| Frequency | 0 to 30 Hz | 0 to 70 Hz | 0 to 100 Hz |
| Electrical Supply¹ | 220-240 Volts 50 Hz @ 13A | 3 Phase 415 Volts 50 Hz @ 16A | Hydraulic power unit: 415 Volts, 50 Hz, three phase as standard TCC: 240 Volts, 50 Hz, single phase as standard. Control Unit: Universal input 110/240 Volts, 50/60 Hz |
| Compressed Air | 7-10 bar at 600 L/min | 7 bar @ 100 L/min For accessories only | 7 bar @ 100 L/min For accessories only |
| Dimension mm(W x D x H) | UTM 360 x 400 x 740 Control Box 360 x 280 x 140 | UTM & Cabinet: 1000 x 1300 x 2400 Power Pack: 630 x 580 x 890 | UTM & Cabinet: 1150 x 1200 x 2750 Power Pack: 700 x 940 x 1110 |
| Working space required mm (W x D x H) | 825 x 1650 x 2100 when fitted in cabinet CRT-TCC | 1100 x 2300 x 2600 | 1m clearance at front and sides |
| Estimated Weight Kg | UTM 30 Control box 6 | UTM & Cabinet 680 Power Pack 60 | UTM & Cabinet: 600 TCC: 200 Power Pack: 180 |
| PC | Included | Included | Included |
