A spring that is a few percent off on load rate can ruin a valve, clutch or suspension, so spring makers test far more than they cut. Our springs testing instruments take those measurements on the bench. As springs testing instruments manufacturers in India and suppliers in India, we supply spring plants, auto suppliers and inspection labs.
The range is organised by spring type and by test objective. Compression and extension testers with digital force gauges measure load at set lengths, rate and initial tension. Torsion spring machines plot torque against angle, the disc spring machine records load at deflection, and the leaf spring machine loads heavy suspension springs. Quality checks include the optical dimension projector, squareness tester, set relaxation fixture and the fatigue machine with cycle counter. The wire torsion and tensile machine checks raw wire before coiling.
A small spring shop commonly starts with the compression tester and projector, adding fatigue and relaxation for automotive customers.
Last updated: November 2026
Motorised stand with digital force gauge that measures load at set heights and spring rate of compression springs. Used by spring makers and automotive suppliers for 100 percent or sample inspection.
Tests disc springs for load at deflection and flat load, with guide mandrel and platens. Used for tooling, clutch and valve component quality control. Single discs and stacked series are checked against the manufacturer's load tables.
Bench tester for extension springs measuring initial tension, load at length and spring rate. Used in appliance, automotive and garage-door spring production. Wire diameters from fine to heavy gauge can be checked against drawing limits.
Hydraulic bench loading semi-elliptic leaf springs to measure camber, load-deflection characteristics and set. Used in commercial vehicle and railway spring plants. It records rate, camber and set for vehicle suspension springs before dispatch.
Profile projector fitted with spring fixtures for measuring wire diameter, coil pitch, free length and squareness. Used in incoming and in-process inspection at spring plants.
Multi-station machine that cycles compression springs between fixed heights to determine fatigue life. Used in valve spring and suspension spring development labs. Every station stops on its own when a spring fails, so cycle life is logged per spring.
Fixture-based tester that holds springs at fixed compression in a heating oven to measure loss of load or length. Used to qualify spring wire and heat treatment for automotive parts.
Gauge that checks end squareness of compression springs against a vertical reference with dial indicators. Used in final inspection of springs for automotive, valve and pen mechanisms.
Measures torque versus angle for torsion springs and clock springs, giving torque at set angle and spring rate. Used in hinge, switch and automotive component industries.
Bench machine for tensile and torsion tests on spring steel wire from 0.5 to 6 mm. Used by wire drawers and spring makers to verify wire strength and ductility before coiling.
| Function | Products | What to confirm |
|---|---|---|
| Load and rate testing | Compression Spring Load Rate Tester with Digital Force Gauge, Extension Spring Tension Tester with Initial Tension Measurement, Torsion Spring Torque Testing Machine | Force capacity, travel and length resolution, spring diameter range and the stand motor speed. |
| Heavy and special springs | Leaf Spring Load Deflection Testing Machine 100 kN, Disc Spring Belleville Washer Testing Machine | Load capacity in kN, spring span, test fixtures for your leaf or disc sizes and hydraulic power supply. |
| Dimensional checks | Optical Spring Dimension Measuring Projector, Spring Squareness and Parallelism Tester | Projector magnification, stage size, spring diameter limit and the squareness angle tolerance to be read. |
| Durability and material | Spring Fatigue Testing Machine with Cycle Counter, Spring Set Relaxation Tester for Compression Springs, Wire Torsion and Spring Wire Tensile Testing Machine | Number of stations, stroke and frequency range, set test temperature and wire diameter range for the torsion tester. |
Springs are tested for how they deflect and recover, so instruments measure load against length or torque against angle and then check fatigue and set. Fastener instruments test bolts, nuts and screws for proof load, torque-tension and hardness, where holding force and thread fit matter. Companies that make spring washers or clips may use both, along with a shared hardness tester.
See also: Fasteners Testing Instruments
The complete Springs Testing Instruments range (10 products), in alphabetical order:
Match force capacity and travel to your springs, for example 500 N and 150 mm, and check resolution on force and length. Ask about motorised speed, programmable test points for load at length, and fixtures for spring ends. Calibration with certified weights and a result output with limits for pass or fail are important for batch records.
Large coil and leaf springs need a hydraulic or heavy electromechanical frame, tens or hundreds of kN capacity and wide platens. Check that fixtures hold the spring axially, deflection is measured accurately and safety guards protect the operator. Customers may ask for load at specified heights and the spring rate over a range.
Fatigue machines cycle springs between two heights and count cycles to failure, so check station count, stroke, frequency and automatic stop on spring break. Set relaxation tests compress springs for a defined time, sometimes at temperature, and measure height loss. Ask for fixtures matched to your spring dimensions.
Spring manufacturers, automotive and two-wheeler suspension suppliers, railway component shops, valve and appliance makers, wire drawers, tool rooms and independent quality labs. A new spring shop typically orders a compression tester, optical projector and squareness gauge, then adds fatigue and relaxation equipment as customers specify durability data.
Spring rate is the load change per unit deflection, usually in N/mm. The tester compresses or extends the spring between two lengths, reads the two loads and divides the difference by the travel.
If the ends are not square to the axis the spring leans under load and bears unevenly on its seat. This causes noise, uneven wear and wrong load readings, so a squareness and parallelism gauge is a standard check for compression springs.
A load tester with a digital force gauge handles compression and extension springs with different fixtures. Torsion, disc and leaf springs normally need dedicated fixtures or machines because their loading mode and capacity are different.
Yes. We manufacture the machines in India and ship across the country and to export customers. Tender specifications and calibration documents are available, and we can arrange commissioning at your plant.
The spring is cycled between two compressed lengths at a set speed, often for millions of cycles. The count at breakage or the measured load loss shows if the design and wire quality meet the life requirement.
Civil Mechanical India is an established manufacturer and supplier for tender requirements from India, handling civil laboratory and industrial testing tenders and bulk and OEM orders for mechanical engineering and testing laboratory equipment. On receipt of your tender specifications, we will submit a complete quotation for Springs Testing Instruments.
Send us your equipment list or tender specification. We quote against IS, BS, EN, ASTM and AASHTO standards and ship to 90+ countries.
