Railway Locomotive Spring Testing Machine
Category：Torsion Testing Machine
Introduction
The Railway Locomotive Spring Testing Machine is specially designed for mechanical performance testing of high-speed railway springs, railway vehicle springs, locomotive springs, large wire diameter springs, and air springs.The machine is capable of testing the axial load, lateral displacement, lateral force, and lateral stiffness of the primary and secondary suspension coil springs used in CRH series high-speed electric locomotives.The entire testing process is controlled by a computer system and completed automatically. The equipment can automatically analyze parameters such as bending direction and stiffness values, and generate and print axial load–deformation (deflection) curves and lateral force–lateral displacement curves.It features high testing accuracy, automatic data processing, convenient operation, and reliable performance, making it suitable for railway vehicle manufacturers, spring manufacturers, and quality inspection laboratories.
Applications
The Railway Locomotive Spring Testing Machine is mainly used for mechanical performance testing of high-speed railway springs, locomotive springs, railway vehicle suspension springs, large wire diameter springs, and air springs.
It is widely applied in:
Railway vehicle manufacturing: Testing the performance of primary and secondary suspension springs of locomotives and high-speed trains.
Spring manufacturing industry: Quality inspection and performance verification of large-size compression springs and special springs.
Railway maintenance and inspection: Evaluating spring fatigue performance, stiffness, load characteristics, and service reliability.
Research and testing laboratories: Conducting mechanical property analysis and product development tests.
The machine can test key performance parameters including axial load, axial deformation, lateral force, lateral displacement, stiffness, and load-displacement characteristics. It can automatically generate and analyze axial load–deformation curves and lateral force–displacement curves.
Applicable Standards
GB/T 13828-2009 — Technical Requirements for Helical Compression Springs
GB/T 1025-2000 — Test Method for Washers Used in Railway Rolling Stock
MOR CA250 — Technical Specification for Railway Helical Compression Springs
EN 13298 — Railway Applications — Suspension Components — Steel Helical Springs Standard
Main Technical Specifications
| No. | Item | Technical Parameters |
|---|---|---|
| 1 | Lateral Force Test Range | 10 kN, 50 kN, 100 kN, 200 kN, 500 kN, 800 kN (Customizable) |
| 2 | Test Force Accuracy | ±0.5% |
| 3 | Displacement Resolution | 0.01 mm |
| 4 | Minimum Load Resolution | 1 N |
| 5 | Maximum Lateral Test Force | 40 kN (X Direction) |
| 6 | Test Force Accuracy Grade | ±1% |
| 7 | Compression Plate Diameter | φ500 mm |
| 8 | Test Force Measurement Range | 1%–100% FS |
| 9 | Maximum Test Height | 800 mm (Maximum Distance Between Two Compression Plates) |
| 10 | Maximum Lateral Displacement | 60 mm (X/Y Direction, Universal Locking Device on Base) |
| 11 | Axial Loading Speed Range | 1–400 mm/min, Stepless Adjustment, Freely Settable |
| 12 | Lateral Loading Speed Range | 1–80 mm/min, Stepless Adjustment, Freely Settable |
| 13 | Speed Accuracy | ±0.5% of Indicated Value |
| 14 | Machine Dimensions | Approx. 1500 × 1250 × 2400 mm |
| 15 | Total Power | 5 kW |
| 16 | Safety Protection | Equipped with protective safety mesh to prevent injury caused by spring fracture |
Main Features
Designed specifically for testing railway locomotive springs, high-speed rail springs, and large-load suspension springs.
Supports axial loading and lateral loading tests to evaluate comprehensive spring performance.
High-precision load sensors ensure accurate measurement of test force and stiffness.
Computer-controlled automatic testing system enables test setup, data acquisition, analysis, and report generation.
Automatically calculates spring parameters such as stiffness value, deformation characteristics, and bending direction.
Generates and prints load–deformation and lateral force–displacement curves for detailed analysis.
Large test space and high load capacity accommodate various large-size spring specimens.
Adjustable loading speed with stepless control to meet different testing requirements.
Equipped with a safety protection mesh to prevent accidents caused by spring breakage during testing.
Stable structure, reliable operation, and convenient maintenance.
Suitable for quality control, product inspection, and research applications in railway and spring manufacturing industries.
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