Electro hydraulic servo dynamic fatigue testing machine

Customized service

It is mainly used to test the dynamic and static mechanical properties of various materials, parts, elastomers, shock absorbers and components. It can perform tensile, compression, bending, low and high cycle fatigue, crack propagation, and fracture mechanics tests under sine wave, triangle wave, square wave, trapezoidal wave, and combined waveforms. It can also be equipped with environmental testing devices to complete environmental simulation tests at different temperatures.

Test standard

Please provide the test standard you need to our company, our company will help you customize the test machine that meets the test standard you need.

We not only provide standardized machines, but also customize machines and LOGO according to customer requirements. Please tell us your requirements and we will try our best to meet your needs.

Please provide the test standard you need to our company, our company will help you customize the test machine that meets the test standard you need.

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Electro Hydraulic Servo Dynamic Fatigue Testing Machine

APPLICATION AREA

The microcomputer controlled electro-hydraulic servo fatigue testing machine is mainly used to test the dynamic and static mechanical properties of various materials, parts, elastomers, shock absorbers and components.

Enpuda fatigue microcomputer-controlled electro-hydraulic servo fatigue testing machine is mobile and flexible, the beam moves downwards, and the sample holder is locked by button operation.
Adopt advanced hydraulic servo drive technology to load, high-precision and high-resolution dynamic load sensor, magnetostrictive displacement sensor, sample force value and displacement.

The all-digital measurement and control system realizes closed-loop control of force, displacement, and deformation. The test software adopts English operation interface, powerful data processing capabilities, and automatic storage, display and printing of test conditions and test results.
It is an ideal cost-effective fatigue test system for scientific research institutes, metallurgical construction, national defense industry, colleges and universities, aerospace, rail transit and other industries.

Testing standard

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Performance features / advantages

Electro Hydraulic Servo Dynamic Fatigue Testing Machine (2)

1. Test machine host: column, base, beam constitute a closed frame structure, frame stiffness, no reverse clearance, good stability. The outer surface of the column is electroplated with hard chromium, the servo actuator (oil cylinder) is placed downward, and the piston design of double acting oil cylinder is adopted. The sample clamping adjustment is convenient and flexible.

2. Key components: adopt international famous brands such as MOOG servo valve of the United States, DOLI controller of Germany, Buer oil pump of Japan, Shiquan sensor of USA, displacement sensor of MTS company of USA, etc.

3. Hydraulic servo pump station: adopt no leakage mute technology, stable pressure output, no fluctuation, low noise, good heat dissipation effect, high filtering accuracy, automatic protection of pressure overload and oil temperature over temperature.

4. Control mode: force, displacement and deformation PID closed-loop control, and can realize smooth and undisturbed switching of any control mode.

5. Test software: it is suitable for the operation and control system under the windows test platform. It can control the test system to complete all kinds of dynamic and static mechanical property tests, such as metal tensile, compression, bending, low cycle and metal fracture mechanical tests. And it can complete all kinds of test management, data storage, test report printing and other functions independently.

6. Test waveform: sine wave, triangle wave, square wave, random wave, sweep frequency wave, combined waveform, etc.

7. Protection function: it has alarm and shutdown functions such as blockage of oil circuit, over temperature, low liquid level, overload of hydraulic system, overheat of motor, preset fatigue times and fracture of test piece.

Key Parts

1. Optional German DOLI company EDC-I52 fully digital servo controller

2. Use American Interface high-precision dynamic force sensor

3. American MOOG servo valve

4. American MTS magnetostrictive displacement sensor

American-MTS-magnetostrictive-displacement-sensor1

5. Optional Hydraulic Fixture

6. Enpuda produces hydraulic silent hydraulic servo oil source (powertrain) Low noise, stable operation, excellent durability and long life

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Model of testing machine		EH-9204 （9304）	EH-9504	EH-9105	EH-9205	EH-9505
					（9255）
Maximum dynamic load（kN）		±20（±30）	±50	±100	±200（±250）	±500
Test frequency（Hz)		Low cycle fatigue 0.01～20，High cycle fatigue 0.01～50，customized 0.01～100
Actuator stroke（mm）		±50、±75、±100、±150 and customized
Test loading waveform		Sine wave, triangle wave, square wave, oblique wave, trapezoidal wave, combined custom waveform, etc
Measurement accuracy	Load	Better than indicated value ±1%、±0.5%（static state）；Better than indicated value ±2%（dynamic）
	deformation	Better than indicated value ±1%、±0.5%（static state）；Better than indicated value ±2%（dynamic）
	displacement	Better than indicated value ±1%、±0.5%
Measurement range of test parameters		1～100%FS（Full scale），It can be extended to 0.4～100%FS			2～100%FS（Full scale）
Test space（mm）		50～580			50～850
Test width（mm）		500			600
Oil source allocation（21Mpa Motor power）		20L/min（7.50kW），40L/min（15.0 kW），60L/min（22.0 kW），100L/min（37.0 kW）Displacement oil sources work in combination according to requirements, with pressure selectable 14、21、25Mpa
Remarks: The company reserves the right to upgrade the instrument without any notice after the update, please ask for details when consulting.