Large Spring Fatigue Testing Machine
Category：Torsion Testing Machine
Introduction
The Large Spring Fatigue Testing Machine is specially designed for fatigue life and durability testing of large springs and elastic components, including compression springs, tension springs, shock absorber springs, locomotive springs, valve springs, gas springs, air springs, wave springs, and disc springs.
Application
The Large Spring Fatigue Testing Machine is mainly used for fatigue life testing and durability evaluation of various large-scale elastic components, including tension and compression springs, shock absorber springs, locomotive springs, valve springs, gas springs, air springs, wave springs, disc springs, and other metal components.
The machine can simulate the vertical working conditions of specimens and perform high-cycle fatigue tests (over one million cycles) as well as tension and compression tests. Equipped with dedicated testing software, it integrates test control, data acquisition, and data processing functions to analyze and evaluate product performance and service behavior after testing under specified conditions.
It is widely used in spring manufacturing, automotive components, shock absorber production, railway equipment, machinery industries, and research laboratories for fatigue life assessment, reliability verification, and quality inspection.
Applicable Standards
JB/T 7796-2005 — Spring Tension and Compression Testing Machine
GB/T 1239.2 — Cold Coiled Helical Compression Springs — Technical Requirements
GB/T 19844 — Springs — Technical Specifications
GB/T 2611 — General Requirements for Testing Machines
GB/T 16825.1 — Verification of Static Uniaxial Testing Machines
JJG 139 — Verification Regulation of Tension, Compression and Universal Testing Machines
ISO 10243 — Tool Dies — Compression Springs — Specifications
Main Technical Specifications
| Item | Technical Parameters |
|---|---|
| Product Name | Large Spring Fatigue Testing Machine |
| Maximum Test Force | 5000 N / 10000 N / 20000 N (Customizable) |
| Maximum Specimen Length | 600 mm (Customizable) |
| Maximum Specimen Outer Diameter | Ø200 mm (Customizable) |
| Test Frequency | 0.01–50 Hz |
| Amplitude | Max. 0–160 mm |
| Counter Capacity | 9.999.999 cycles |
| Test Stations | 1 Station (Multi-station Available) |
| Movement Accuracy | 0.1 ± 0.1 mm |
| Power Capacity | 10 kW |
| Counting Stop Accuracy | ±1 cycle |
| Test Waveforms | Sine Wave, Ramp Wave, Square Wave |
| Speed Range | 0.2–200 mm/min or above |
| Temperature | Room Temperature |
| Power Supply | AC 380 V, 50 Hz / AC 220 V, 50 Hz |
| Assembly Quality | Complies with GB/T 2611 Standard |
Features
Adjustable test amplitude and frequency according to spring technical requirements.
LCD display with programmable test cycles and frequency settings.
Automatic shutdown after reaching the preset number of test cycles.
Motor and reducer drive cam mechanism to achieve reciprocating compression movement of springs.
Supports long-term fatigue testing with stable operation.
Simple operation, reliable performance, and easy maintenance.
Equipped with professional software for automatic control, data acquisition, and analysis.
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