Air Spring Fatigue Testing Machine
Category：Torsion Testing Machine
Introduction
The Air Spring Fatigue Testing Machine adopts a microcomputer-controlled electro-hydraulic servo drive system to provide precise reciprocating loading for air springs.The machine performs repeated compression and extension tests on air springs with a maximum loading force of 80 kN, using a test frequency of 3 Hz and an amplitude of half of the allowable maximum compression value to simulate actual working conditions.Controlled by a computer system, the equipment can perform both dynamic fatigue tests and static performance tests. It features stable performance, high control accuracy, low failure rate, and reliable operation, making it suitable for fatigue life evaluation and performance verification of air springs used in vehicles and suspension systems.
Applications
Used for static performance, dynamic fatigue, durability, and air tightness testing of various air springs. Widely applied in automotive suspension systems, railway vehicles, commercial vehicles, air spring manufacturers, and research laboratories for performance evaluation and reliability verification.
Applicable Standards
GB/T 13061 — Automotive Air Spring Technical Requirements
GB/T 1040 — Plastics Tensile Properties Test Method (Related material testing reference)
ISO 3888 — Road Vehicles — Air Suspension Components Test Requirements
EN 13597 — Railway Applications — Rubber Suspension Components — Air Spring Testing
UIC 830 — Railway Vehicle Air Suspension Technical Requirements
GB/T 16825.1 — Verification of Static Uniaxial Testing Machines
JB/T 8064 — Hydraulic Servo Fatigue Testing Machine Technical Conditions
Main Technical Specifications
| Item | Technical Parameters |
|---|---|
| Test Force | 20 kN, 30 kN, 80 kN (Customizable) |
| Test Waveforms | Sine Wave, Ramp Wave, Square Wave |
| Static Load Accuracy | ±0.5% |
| Test Frequency | 0.01–50 Hz Adjustable |
| Frequency Accuracy | 1% |
| Amplitude Range | 0–160 mm |
| Electro-Hydraulic Servo Cylinder Force | 0–8000 kgf Adjustable |
| Speed Range | 0.2–200 mm/min or above |
| Movement Accuracy | 0.1% ±0.1 mm |
| Stroke Space | 600 mm |
| Spring Height | 500 mm |
| Test Stations | 1. 2. 3/4 Stations (Single or Multiple Stations Available) |
| Power Supply | AC 380 V |
| Total Power | 100 kW |
Main Features
Adjustable vibration cycles and test frequency according to test requirements.
Automatic shutdown after reaching the preset number of test cycles.
Automatic stop and memory function in case of specimen failure.
Simple operation, stable performance, and reliable operation.
Supports static air tightness testing of air springs.
Capable of performing:
Deformation–Load curve testing.
Deformation–Internal Pressure curve testing.
Deformation–Effective Area curve testing.
Destructive testing.
Bench life durability testing.
Full computer-controlled measurement and control system with automatic test curve generation, comparison of multiple test curves, and report printing.
Equipped with microcontroller control and LCD display; operation can continue through the LCD control unit in case of computer failure.
Dual-drive electro-hydraulic servo system for precise position adjustment.
Equipped with a special automatic measuring device for effective circumference measurement during testing.
Supports both static and dynamic performance evaluation of air springs.
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