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LPA-500 Electro hydraulic servo fatigue testing machine

The electro-hydraulic servo fatigue testing machine is a single axis loading testing machine, equipped with a constant pressure oil source, servo controller, and software system

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Introduction

1. The electro-hydraulic servo fatigue testing machine is a single axis loading testing machine, equipped with a constant pressure oil source, servo controller, and software system;
2. Equipped with compression fatigue clamps that match the standard compression specimens in the JCT2558 permeable concrete standard specification, and bending clamps that match the bending specimens in the JCT2558 standard; Complete the compressive and flexural fatigue life test of permeable concrete.
3. After setting the test parameters, the experimental software will run automatically; Real time drawing of load time curve; Load displacement curve, and save data at regular intervals. The sample fracture testing machine automatically shuts down or stops automatically when the set fatigue frequency is reached.
4. The testing machine is equipped with a comprehensive safety alarm system, which can achieve unmanned operation during the testing process;
5. Software protection: Upper and lower limit protection can be set for load and displacement respectively. If the limit is exceeded, the host will stop working to ensure test safety;

Parameters

Parameter	Specification
Static Capacity
Maximum Static Axial Force	±500 kN
Dynamic Capacity
Maximum Dynamic Axial Force	±400 kN
Testing Performance
Test Frequency	0.1 - 20 Hz (with domestic servo valve, load & displacement sensors) or up to 50 Hz (with imported servo valve, load & displacement sensors)
Test Displacement Amplitude	0 - ±50 mm
Force Measurement
Axial Force Accuracy Measurement Range	2 - 100% F.S.
Axial Load Measurement Accuracy	Static: Better than ±0.5% Dynamic: Better than ±2% (calibrated at 5Hz)
Displacement Measurement
Axial Displacement Stroke	0 - 100 mm, ±50 mm
Axial Displacement Measurement Accuracy	Better than ±0.5% F.S.
Mechanical Structure
Vertical Test Space (Between Bending Fixture Faces)	50 - 500 mm
Clear Distance Between Columns	≥ 750 mm
Hydraulic Power Unit
Servo Hydraulic Power Unit Flow & Pressure	64 L/min, 21 MPa
Fixture Specifications (Fatigue)
Compression Fatigue Grip Size (Diameter)	≥ 150 mm
Bending Fatigue Fixture Span	100 mm - 400 mm
Bending Fatigue Fixture Roller Diameter & Width	30 mm, 120 mm
Physical Dimensions
Overall Dimensions (W × D × H)	≤ 1200 × 1400 × 2500 mm
Host Weight	Approx. 4000 kg