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PWS-50 Electro hydraulic servo plate spring fatigue testing machine

Introduction

The PWS-50 electro-hydraulic servo plate spring support fatigue test bench adopts electro-hydraulic servo control technology, mainly used for dynamic fatigue testing and static characteristic testing (steel plate spring stiffness test, permanent deformation test under vertical load) of various vehicle plate springs. The test method meets the requirements of the "Test Method for Automotive Steel Plate Spring Bench" (GB/T19844-2018) standard. By replacing the fixture, it can also be used to move various coil springs
Static test.

Parameters

arameter Category	Translation
Testing Force	Maximum Static Testing Force: ±60 kN, Accuracy: ±1% of indicated value, Accuracy Range: 2-100% FS
	Maximum Dynamic Testing Force: ±50 kN, Dynamic Fluctuation: ±1% of indicated value
Frequency	Frequency Range: 0.1 - 5 Hz
	Control Frequency: 10 kHz
Actuator	Actuator Maximum Stroke: ±100 mm, Accuracy: ±0.5% of indicated value
Function Generator	Function Generator Waveforms: Sine, Triangle, Square, Trapezoid, Ramp, Combined wave, or external spectrum input
Controller	Controller: DSP V6.0 Full Digital Servo Controller
	Control Modes: Load and displacement control with smooth switching
Servo Pump Station	Rated Pressure: 21 MPa, Rated Flow: 90 L/min, Power: 40 kW
Effective Test Space	Height: ≥ 500 mm, Column Distance: 1000 mm × 400 mm
Test Space Adjustment	Adjustment Method: Manual adjustment, hydraulic lifting and locking