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Energy Transfer Manufacturer, Suppliers and Exporter in India

School Instrument India is leading Energy Transfer Manufacturer,and supplier and Exporter in India, Algeria (Algiers), Angola (Luanda), Argentina (Buenos Aires), Armenia (Yerevan), Australia(Canberra), Austria (Vienna), Bahrain (Manama), Bangladesh (Dhaka), Bhutan (Thimphu), Bolivia (Sucre), Botswana (Gaborone), Brazil (Brasília), Brunei (Bandar Seri Begawan), Montenegro (Podgorica), Morocco (Rabat), Mozambique (Maputo), Myanmar (Naypyidaw), Namibia (Windhoek), Nepal (Kathmandu), New Zealand (Wellington), Nigeria (Abuja), Oman (Muscat), Palestine (Ramallah), Panama (Panama City), Papua New Guinea (Port Moresby), Paraguay (Asunción), Peru (Lima), Philippines (Manila)¸ Portugal (Lisbon), Qatar (Doha), Rwanda (Kigali), Saudi Arabia (Riyadh), Senegal (Dakar), Serbia (Belgrade), Sierra Leone (Freetown), Slovakia (Bratislava), South Africa (Cape Town) (Pretoria) (Bloemfontein), South Sudan (Juba), Spain (Madrid), Sri Lanka (Sri Jayawardenepura Kotte) (Colombo), Sudan (Khartoum), Syria (Damascus), Tanzania (Dodoma), Thailand (Bangkok), Togo (Lomé), Tonga (Nuku'alofa), Trinidad and Tobago (Port of Spain), Tunisia (Tunis), Turkey (Ankara), Turkmenistan (Ashgabat), Uganda (Kampala), United Arab Emirates (Abu Dhabi), United Kingdom (London), United States (Washington, D.C.)

Written by Palak Mall, Senior Content Writer · reviewed by Arvind Kumar, Lab Equipment Specialist, 12+ years in laboratory supply · updated 17 October 2026

Energy Transfer is a range of 14 units for showing, in school and college physics labs, how energy changes from one form to another. Ten are board-mounted units that are linked by driving belts: two motors, a flywheel, a line shaft, a spring unit, a hand wheel, a lamp unit, and a water turbine with its head-of-water and constant-level fittings. The other four are steam items for heat experiments. Every size and rating below is taken from that unit’s own listing.

The belt-driven energy units

Unit	What the listing specifies	Listed use
Large Motor	2 to 6 V DC motor with a 15 mm V pulley, on a laminated board, with driving belt	A driving unit, or a dynamo
Small Motor (Malvern)	Motor on a laminated board, with driving belt	Comparing power input and output with the Large Motor, each driving the other in turn while voltages and currents are metered
Fly Wheel	Iron flywheel 115 mm in diameter, 1.2 kg, in cast brackets with bearings; aluminium pulley 44 mm in diameter and spring belt	With the Large Motor and lamp unit, electrical energy to kinetic energy and back
Line Shaft Unit	6 mm steel shaft with a 56 mm aluminium V pulley at one end and a cord anchoring collar at the other	Electrical energy, through mechanical, to potential energy by winding up a weight on a cord
Spring Unit (Malvern)	Clock spring on a steel shaft with free wheel and winding ratchet; 56 mm aluminium V pulley; shaft end overhangs the base	Potential energy in a wound spring driving a dynamo to light a lamp, or winding up a weight
Hand Wheel Driving	Two 75 mm driving pulleys and a 20 mm intermediate pulley that steps the speed up	Driving dynamos, line shafts and flywheels by hand
Triple Lamp Unit	Three 3.5 V 0.25 A MES lamps, wired in parallel	Showing the output of a motor used as a dynamo
Turbine Pump Unit	Rotor with eight bucket blades in a 50 x 50 x 25 mm chamber with a clear Perspex front; two inlet tubules and one outlet; 15 mm pulley	A water turbine driving a generator, or a pump raising a head of water
Head of Water Unit	Upper platform with a 38 mm hole; two basins 80 mm in diameter; shaped glass tubes	With the turbine pump unit, an open or closed system showing electrical, kinetic and potential energy
Constant Level Tank	Brass cylinder 100 x 75 mm in diameter with tubes for inlet, outlet and overflow, on a boss-head and stand	Supplying water at a constant level

Steam items for heat experiments

Item	What the listing specifies
Heat of Steam Apparatus	Thick brass calorimeter, bung with steam inlet and outlet glass tubes and a felt cover, with a 2 litre tin plate boiler and bung for the steam tube
Steam Generator with Water Gauge	Copper vessel of about 2 litres with a conical top, 300 mm high and 120 mm in diameter, neck 23 mm; riffled tube 9.5 mm outer diameter and water gauge
Steam Heater, Copper	Cylindrical copper boiler with an inclined brass heating chamber 25 mm in diameter, closed by a sliding inner tube with a bakelite top; long steam outlet tube
Steam Trap, Glass	Borosilicate glass, 160 mm overall

Building an energy chain

The board units are designed to be belted together, and their listings name the partner units. Four chains follow directly from them:

Electrical to kinetic and back: the Large Motor drives the Fly Wheel, and the lamp unit shows the energy returned when the motor runs as a dynamo.
Electrical to potential: a motor drives the Line Shaft Unit, which winds a weight up on a cord.
Stored to electrical: the wound Spring Unit drives a dynamo to light a lamp.
Electrical to potential through water: a motor drives the Turbine Pump Unit to raise water into the Head of Water Unit. Reversed, the falling water turns the turbine to drive a generator.

The Hand Wheel Driving unit can stand in for the motor when a dynamo, line shaft or flywheel is to be turned by hand. The Small Motor and Large Motor let a class compare power input and output, each driving the other in turn with the voltages and currents metered.

Related ranges

Energy Transfer is one of four sub-ranges of Heat & Thermodynamics. Working steam engines, including one that lights a lamp through a dynamo, are under Engine Models. Calorimeters for use with the steam items are under Heat Capacity and Heat Conduction, and a hand-driven demonstration dynamo is listed under Electromagnetism.

Questions buyers ask

Which units show electrical energy becoming potential energy?
Two combinations do. The Large Motor with the Line Shaft Unit winds up a weight on a cord. A motor with the Turbine Pump Unit and the Head of Water Unit raises a head of water.

Can the motor be used as a dynamo?
Yes. The Large Motor is listed for use as a driving unit or a dynamo, and the Triple Lamp Unit is listed for showing the output of motors used as dynamos.

What does the hand wheel drive?
Dynamos, line shafts and flywheels. Its two 75 mm driving pulleys and 20 mm intermediate pulley step the speed up, so a class can generate without a power supply.

What comes with the Heat of Steam Apparatus?
A thick brass calorimeter, a bung with steam inlet and outlet glass tubes, a felt cover, and a 2 litre tin plate boiler with its own bung for the steam tube.

How does the copper steam heater deliver a heated specimen?
The specimen sits in an inclined brass chamber closed by a sliding inner tube. Raising the tube slightly lets it slide down the chute into the calorimeter, and a long outlet tube carries the steam away from the user’s hands.

Request a quotation

List the units by name and quantity and send the list through the contact page. For a complete energy chain, include the partner units named in each listing, the low-voltage supply for the motors, and spare 3.5 V lamps for the lamp unit.