Extension Spring, Steel Manufacturer,Supplier and Exporter in India

Extension Spring, Steel (Product Code: SLE/PHY/303) is a closely wound steel coil spring with looped ends used to study motion, mass and potential energy in school and college physics practicals. Each spring is 225 mm long and 6 mm in diameter, stretches an average of 430 mm under a 200 g load, and is sold in packs of 200 for whole-class use. This mechanics lab equipment item is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.

Specifications

What Is the Steel Extension Spring Used For?

The most common use is a Hooke's law investigation: hang the spring from a clamp by one looped end, add masses to the other, and record the extension for each load. Plotting load against extension gives a straight line while the spring behaves elastically, and its gradient gives the spring constant. With an average stretch of 430 mm for 200 g, the extensions are large enough to read easily with a metre rule.

The same spring supports oscillation work. Pull a hanging mass down slightly, release it, and time several complete oscillations with a stop clock to study simple harmonic motion and how the period depends on mass. It also shows that a stretched spring stores elastic potential energy. Keep loads well within the 750 mm maximum deflection so the coils return to their original length after each run.

What to Specify When Ordering

• Number of packs required (the spring is listed as a pack of 200).
• The loads you plan to use, so they suit the 430 mm average extension at 200 g and the 750 mm maximum deflection.
• Any masses, hangers, clamp stands or timers you want quoted together.

OEM Manufacturer

ScienceLab is the trading name of Jain Scientific Equipments Private Limited, the OEM (original equipment manufacturer) of the Extension Spring, Steel. Production takes place at the company's own licensed factory at Saha, Ambala, Haryana, India, and packs go factory-direct to schools, colleges, institutions, dealers and importers in India and international markets. Because the maker handles your enquiry, repeat orders for further packs are quoted without a middleman. Learn more on our company profile.

Related Physics Lab Equipment

Items used alongside the spring in elasticity and oscillation practicals:

• Hooke’s Law Apparatus — a complete set-up for measuring load against extension.
• Newton Mass Set 1N Set — masses for loading the spring in steps.
• Retort Stand — a support to hang the spring from.
• Stop Clock (Metal Case) — for timing oscillations of a mass on the spring.
• Metal Slinky, Helical Spring — for wave demonstrations with a longer coil.

Find more in Physics Lab Equipment.

Frequently Asked Questions

How much does the Extension Spring, Steel stretch?
The Extension Spring, Steel has an average extension of 430 mm for a 200 g load and a maximum deflection of 750 mm. These large extensions make readings easy for students in Hooke's law and oscillation experiments.

How many springs are in a pack of the Extension Spring, Steel?
The Extension Spring, Steel is listed as a pack of 200, which suits schools equipping several classes or lab groups at once. Confirm the number of packs you need when you request a quotation.

What are the dimensions of the Extension Spring, Steel?
Each Extension Spring, Steel is 225 mm long and 6 mm in diameter, wound from steel wire of approximately 19 swg. The coils are closely wound and both ends are formed into loops for hanging.

Can the Extension Spring, Steel be used for simple harmonic motion?
Yes. A mass hung from the Extension Spring, Steel can be displaced and released so students time its oscillations and study simple harmonic motion. Keep the total stretch well within the 750 mm maximum deflection.

Who manufactures the Extension Spring, Steel?
The Extension Spring, Steel is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), which is the OEM, at its own licensed factory at Saha, Ambala, Haryana, India. Repeat orders and quotations are handled directly by the manufacturer.

Can the Extension Spring, Steel be supplied for export?
Yes. The Extension Spring, Steel is supplied to buyers in India and international markets. Send the number of packs and the delivery destination through our contact page and we will prepare a quotation.

Request a Quote

To order the Extension Spring, Steel, send the number of packs and your delivery location via our contact page, or place it in the enquiry cart. The quotation is prepared directly by the manufacturer.

Last updated: 24 September 2026