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LPA-200 Electro hydraulic servo fatigue testing machine

The LPA-200 electro-hydraulic servo fatigue testing machine is a single axis axial loading testing machine, which consists of a servo valve as the control core and a controller to form an automatic control system. It is mainly used for fatigue testing of material samples and components. Furthermore, it reaches the S-N curve of the material or component, which is the stress life relationship curve.

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Introduction

1.The LPA-200 electro-hydraulic servo fatigue testing machine is a single axis axial loading testing machine, which consists of a servo valve as the control core and a controller to form an automatic control system. It is mainly used for fatigue testing of material samples and components. Furthermore, it reaches the S-N curve of the material or component, which is the stress life relationship curve.

2. Control methods include force control and displacement control;
3. Equipped with high cycle testing and low cycle fatigue testing functions, the loading waveforms include sine wave, triangular wave, oblique wave, square wave, and custom loading waveforms.
4. The fully digital measurement controller independently developed and produced adopts the Dutch ARM chip, network port communication, easy connection, safety and reliability.
5. Adopting a 100KN, 0.05% FS nonlinearity American Celtron force sensor, and a hysteresis displacement meter with ± 75mm, 0.2% FS nonlinearity.

Parameters

Parameter	Specification
Maximum Static Test Force	±200 kN
Maximum Dynamic Test Force	±150 kN
Force Accuracy Guaranteed Range	2% FS to 100% FS
Static Force Indication Accuracy	≤ ±1%
Dynamic Force Indication Accuracy	≤ ±2%
Displacement Resolution	0.01 mm
Maximum Displacement/Amplitude	100 mm
Displacement Indication Accuracy	≤ ±1%
Actuator Maximum Amplitude	100 mm, ±50 mm
Test Frequency Range	0.1 to 50 Hz
Test Waveforms	Sine, Triangle, Trapezoidal, etc.
Control Modes	Force, Displacement
Fixture Configuration	Hydraulic Grips
Clamping Method	Hydraulic automatic clamping, button control
Gripping Range	Standard Plate Grips: Thk. 4-9mm, 9-14mm, 14-19mm; Width ≤40mm
	Standard Round Bar Grips: Ø9-14mm, Ø14-19mm, Ø19-24mm
Clear Distance Between Columns	540 mm (Customizable)
Distance Between Upper/Lower Grips (adjustable)	50-550 mm (Customizable)
Host Machine Dimensions (W x D x H)	1200 x 600 x 2600 mm (Height adjustable with test space)
Hydraulic Power Unit Flow Rate	40 L/min
Hydraulic Power Unit Dimensions (W x D x H)	1800 x 1600 x 2000 mm
Main Power Supply	380V ±10%, 50Hz, 25kW
Control Power Supply	220V ±10%, 50Hz, 2kW
Host Machine Weight	2600 kg