Spring Testing Machine
Springs are critical components in almost every industrial mechanism — from automotive suspensions to precision electronic devices.
To ensure consistent quality, each spring must be tested for its load, deflection, and stiffness characteristics under controlled conditions.
Synergy Automatics, a leading spring testing machine manufacturer in India, offers high-precision spring testers engineered for compression, tension, and load testing applications.Our machines are designed with servo or motorized actuation, digital load cells, and PLC-based control systems to deliver repeatable accuracy and traceable test results.
Why Spring Testing Machines Are Important
A spring tester ensures that every spring meets its design specification before assembly or delivery.
By simulating real operating conditions, it measures the relationship between force and deflection, confirming elasticity, durability, and compliance with quality standards.
Key purposes include:
- Verifying spring constant (N/mm) and free length.
- Measuring load at preset deflection or deflection at preset load.
- Ensuring compliance with IS, ASTM, and DIN standards.
- Detecting fatigue, yield, and permanent set characteristics.
These machines play a vital role in automotive, electrical, mechanical, and aerospace industries where precision and safety are paramount.
Working Principle of Spring Testing Machine
A spring testing machine applies either compressive or tensile force to a spring and records the resulting displacement.
This measurement determines the spring rate and verifies that it performs within allowable tolerances.
The load is applied through a screw, hydraulic, or servo-driven actuator.
The deflection or extension is captured by a displacement sensor or encoder.
A load cell continuously measures force, while the control software logs data for analysis.
Modern digital and computerized spring testers from Synergy Automatics feature touch-screen HMI displays, auto-calibration, and graph plotting for real-time evaluation.
Types of Spring Testing Machines
Manual Spring Testing Machine
- Operated using a handwheel or lever, this model is suited for small workshops, training centers, and educational use.
- It allows simple load vs. deflection measurement via dial gauge, ideal for basic compression and tension springs.
Digital Spring Testing Machine
- Fitted with digital load cells and displacement sensors, this version displays real-time readings on a digital indicator or HMI.
- It ensures better accuracy, faster setup, and optional data storage or USB connectivity for production testing.
Computerized Spring Testing Machine
- A fully automated system integrated with PC-based software for data acquisition and reporting.
- It automatically generates force–deflection graphs, load limits, and batch reports, making it ideal for R&D, QA, and mass-production environments.
Compression & Tension Spring Testing Machines
Designed for both compression and tension testing, these units evaluate:
- Compression Springs – measure load under compression at specific deflections.
- Tension Springs – measure elongation and tensile load.
Suitable for automotive, machinery, and component testing industries.
Technical Specifications
| Parameter | Specification |
|---|---|
| Load Capacity Range | 1 N – 100 kN (customizable) |
| Test Type | Compression / Tension / Combined |
| Drive System | Manual / Motorized / Servo-controlled |
| Measurement Accuracy | ± 0.5 % of Full Scale |
| Display | Digital Indicator / HMI / PC Interface |
| Data Output | USB / Ethernet / Cloud Reporting |
| Power Supply | 230 V AC or 415 V AC (Depending on model) |
| Software | PLC / PC based with Auto Graph & Report |
| Frame Construction | Rigid steel base with vibration damping |
Applications of Spring Testing Machine
The spring test machine is essential wherever force, flexibility, and precision are critical:
Automotive Industry: Suspension, valve, clutch, and brake springs.
Electrical & Electronics: Switch and relay springs.
Aerospace & Defense: High-performance coil and torsion springs.
Appliance Manufacturing: Springs for actuators, dampers, and fasteners.
Research & Education: Engineering labs and product validation testing.
Why Choose Synergy Automatics for Spring Testing Machines
Made in India
Designed and manufactured in Chennai for faster delivery and local service support.
High Precision
±0.5% accuracy using digital load cells and servo motion control.
After-Sales Support
Complete installation, calibration, and maintenance by expert engineers.
Industry Expertise
15+ years in testing automation and industrial automation systems.
Custom Design
Available in manual, digital, and computerized models for all spring types.
Advanced Data Integration
PLC/HMI or PC-based software with real-time load-deflection graphs.
Standards Compliant
Built to IS, ASTM, and DIN testing standards for global quality.
Frequently Asked Questions
1. What are the different types of spring testing machines?
Common types include:
- Manual Spring Tester – for basic workshop testing.
- Digital Spring Tester – for production and QA use.
- Computerized Spring Tester – for automated testing with PC integration.
- Compression / Tension Spring Tester – for specific spring types.
2. What parameters are measured in a spring test?
A spring test measures:
- Load at preset deflection
- Deflection at preset load
- Spring constant (N/mm)
- Free length and set point
These readings help ensure consistency, performance, and fatigue resistance.
3. What is the accuracy of Synergy Automatics spring testers?
All Synergy Automatics spring testing machines offer ±0.5% accuracy, achieved through calibrated load cells and servo-driven systems.
Each unit is tested and certified for traceable calibration compliance.
4. What industries use spring testing machines?
Spring testers are widely used in:
- Automotive & Engineering – valve, clutch, and suspension springs.
- Electrical & Electronics – switch and relay springs.
- Aerospace, Defense & R&D – for critical performance validation.
5. Can Synergy Automatics customize spring testers?
- Yes
- Synergy Automatics manufactures custom-built spring testing machines tailored to your load range, spring size, and automation level.
- Options include PLC control, servo actuation, and digital data logging systems.
6. What standards do your spring testing machines follow?
All machines are designed to meet IS, ASTM, and DIN testing standards, ensuring global compatibility and repeatable results.
7. What is the difference between compression and tension spring testers?
- Compression Spring Tester: Applies downward force to measure spring strength and stiffness.
- Tension Spring Tester: Applies pulling force to determine elasticity and breaking load.
- Both can be combined in dual-mode testers for complete spring evaluation.
8. Do Synergy Automatics spring testers come with software?
- Yes. Our computerized and servo-controlled spring testers include PC-based data acquisition software for reporting, graphing, and quality documentation.
- It supports data export, SPC analysis, and real-time test monitoring.