Spring Unit
Product Code : LSK-PL-10375
Spring Unit (SKU LSK-PL-10375) is one of the separately available units of an Energy Transfer Kit, used to show how the potential energy stored in a wound-up spring can be converted to electrical energy or used to raise a weight. It suits energy lessons in secondary school and introductory college physics. The unit is assembled by Science Lab Supplies in its Plot 448 workshop, HSIIDC Industrial Area, Saha, Ambala, India, which quotes schools, colleges, tender contractors and distributors without any agent in the chain.
Specifications
Shaft, spring mechanism, pulley and base of the energy-kit Spring Unit are broken out row by row below. In short, a steel shaft carries a clock spring with a free-wheel device and winding ratchet plus a 56 mm aluminium V pulley, the unit sits on the kit's common 165 x 100 mm base, and a driving belt is supplied.
| Specification | Value |
|---|---|
| SKU | LSK-PL-10375 |
| Part of | Energy Transfer Kit (units available separately) |
| Shaft | Steel |
| Spring | Clock spring |
| Free-wheel | Free-wheel device |
| Winding | Winding ratchet |
| Pulley | Aluminium V pulley, 56 mm diameter |
| Belt | Driving belt supplied |
| Base size | 165 x 100 mm (common to all kit units) |
| Kit terminals | 4 mm socket terminals on kit units where appropriate |
| Energy conversions | Spring potential energy to electrical energy; potential to kinetic and back with a raised weight |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Spring Unit
The Spring Unit makes energy conversion visible: winding the spring stores potential energy, and releasing it drives the pulley. It fits the work and energy chapter of CBSE/NCERT Class 9 science and the work, energy and power chapter of Class 11 physics, as well as general science energy demonstrations.
- Class 9 science: transformation of energy from one form to another.
- Converting the potential energy of a wound-up spring into electrical energy, with kit units joined through Connecting Leads with 4 mm Safety Plugs where they have 4 mm sockets.
- Winding a weight on a cord, led over a cast metal Fixed Pulley, to show potential energy changing to kinetic energy and back.
- Class 11 physics: discussing energy conservation and losses in a real mechanism.
Standard Scope of Supply
The Spring Unit is supplied complete with its driving belt, mounted on the 165 x 100 mm base with the clock spring, free-wheel device, winding ratchet and 56 mm aluminium V pulley. Other units of the Energy Transfer Kit are available separately and can be listed on the same quotation.
Packing, MOQ and Lead Time
Quotations can be prepared for one Spring Unit or for several units across a science department. Each states packing, delivery time and price for the requested quantity, and as a science apparatus manufacturer in India we can include masses, pulleys or energy meters on the same quotation.
Being a registered exporter with an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Rwanda, South Africa, Qatar, Sri Lanka, Vietnam and Malaysia. List the energy-kit units you want on the contact page or in the enquiry cart and a priced reply follows; tender-based purchases are outlined on the lab tender page.
Frequently Asked Questions
What does the Spring Unit demonstrate?
It demonstrates the conversion of potential energy stored in a wound-up spring into electrical energy, and it can also wind a weight on a cord to show potential energy changing to kinetic energy and back.
Is the Spring Unit sold on its own?
Yes. It is one of the Energy Transfer Kit units that are available separately, so you can order it alone or with other units of the kit.
Is Science Lab Supplies the manufacturer or a trader?
Spring Units for the energy kit are built on the company's own premises in Saha, Ambala, India; as their manufacturer, Science Lab Supplies handles your enquiry directly, from the first quotation to dispatch.
Is a driving belt included?
Yes. The unit is supplied complete with a driving belt for the 56 mm aluminium V pulley, so it can be linked to another unit or used on its own as soon as it arrives.
Related Energy and Mechanics Equipment
Energy demonstrations become more complete when students can also measure energy, lift masses and run simple machines. These Physics Lab and Applied Mechanics items extend the Spring Unit's lessons on stored, kinetic and electrical energy, and any of them can share one quotation with it.
- Student Digital Joulemeter — reads 1 to 999,999 joules, powered by a 9 V DC mains adaptor.
- Joulemeter, Low Voltage — energy from 1 mJ to 9999 J or power from 1 mW to 200 W.
- Electric Motor — miniature DC motor, 20 mm diameter, for 1.5 to 4.5 V DC.
- Maxwell Wheel — shows conservation of energy as potential energy turns into kinetic energy.
- Pulley, Inline Double — 38 and 50 mm ball-bearing pulleys in an open frame.
- Wooden Machine Pulley Model — three pulleys on a wooden base, with string, for mechanical advantage.
- Mass Set with Hangers — steel masses including 100 g, 500 g and 1000 g pieces.
Browse the full Physics Lab range, the Applied Mechanics range, or all physics lab equipment.
Last updated: 22 October 2026
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