Electro-hydraulic servo fatigue testing machine

Equipment Overview:

       Electro-hydraulic servo fatigue testing machine is mainly used to test the static and dynamic mechanical properties of metal and non-metal materials。It can realize tensile, compression, tension, compression and tension and other mechanical tests, but also can realize high cycle fatigue, low cycle fatigue, crack growth, fracture toughness and other tests, to achieve sine wave, triangular wave, square wave and other waveform output。

 

Performance characteristics:   

  • The upper beam and the lower actuator form a closed frame structure, which has large rigidity, no reverse clearance and good stability;

  • The actuator adopts bidirectional acting cylinder design, reasonable space design and easy operation;

  • Moving beam lifting, locking, sample clamping are operated by the button, flexible and convenient。


Meet the criteria:

1)GB/T 2611 "General Technical Requirements for Testing Machine"

2)GB/T16825.1 "Static uniaxial testing machine test Part 1: tension and (or) pressure testing machine test and calibration of the force system"

3)GB/T 16826 "Electro-hydraulic Servo universal Testing Machine"

4)JB/T 8612 "Electro-hydraulic Servo Universal Testing Machine"

5)JB/T 9397 "Tensile fatigue testing machine Technical Conditions"

 

Technical parameters:


型号

HDT254B    

    HDT504B

    HDT105B

    HDT255B

   HDT505B



Maximum load

Dynamic (kN)

    ±25  

    ±50

      ±100

       ±250

     ±500




Static (kN)

     25 

      50

       100

        250

       500

   

   

Measurement accuracy

Better than ±0 of the indicated value.5%


变形

Better than ±0 of the indicated value.5%


位移

Relative accuracy is better than 0.5%FS

Dynamic test

Test frequency (Hz)

                             60

           50




Test waveform

Sine wave, square wave, triangular wave, trapezoid wave, oblique wave, custom waveform and so on


Test amplitude (mm)

The amplitude is determined according to the hydraulic oil source displacement


Piston stroke (mm)

150(±75)


Control mode

Force, displacement, deformation three closed loop control





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