Joule's Mechanical Heat Experiment Apparatus
Product Code : LSK-H-11162
Joule's Mechanical Heat Experiment Apparatus (SKU LSK-H-11162) shows that mechanical work turns into heat: vanes on a rotating axle churn water against fixed vanes in a copper vessel, and the water temperature rises after two to three minutes of rotation. It supports energy topics in Class 9–11 and heat practicals at B.Sc. level. Science Lab Supplies manufactures this apparatus on its own premises at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and offers it directly to schools, colleges, tender contractors and distributors.
Specifications
Each part of the Joule paddle-wheel apparatus is given its own row below. To summarise, a cast aluminium cylinder turns freely on a cast metallic pedestal, its axle vanes work against fixed vanes in a felt-lined wooden case, and two pulleys on an aluminium sliding bracket carry the cord and slotted weights.
| Specification | Value |
|---|---|
| SKU | LSK-H-11162 |
| Rotor | Cast aluminium cylinder |
| Rotor mounting | Rotates freely on a cast metallic pedestal |
| Rotating vanes | Fitted to the rotor axle |
| Fixed vanes | Encased in a wooden case lined with felt |
| Water vessel | Copper |
| Case movement | Box slides freely on a wooden base |
| Thermometer holder | Thermometer clamping device on the box |
| Pulleys | Two, on an aluminium sliding bracket |
| Weights | Two sets of slotted weights |
| Cord | Included |
| Temperature rise | Observed after two to three minutes of rotation |
| Thermometer | Not included |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Joule's Mechanical Heat Apparatus
Falling slotted weights or a turned rotor drive the vanes, friction in the water converts their kinetic energy into heat, and the thermometer records the rise. Students compare the work done with the heat gained, which makes the set a clear piece of heat and thermodynamics lab equipment for energy-conversion lessons.
- Class 9–11 physics: showing the conversion of mechanical energy into heat, with the water temperature read on Laboratory Thermometers held in the clamping device.
- B.Sc. heat practical: estimating the mechanical equivalent of heat from the work done by the weights and the heat gained by water and vessel.
- Timing the two-to-three-minute run with a Digital Stopwatch and adding load with Laboratory Slotted Masses, 2.5 kg.
Keep fingers clear of the pulleys and cord while the rotor turns, and never let the weights drop onto the floor.
Standard Scope of Supply
The apparatus is complete with the cast aluminium rotor and pedestal, the vane assembly in its felt-lined wooden case on a sliding wooden base, the thermometer clamping device, two pulleys on the aluminium sliding bracket, two sets of slotted weights and the cord. A thermometer is not included.
Packing, MOQ and Lead Time
Whether you need a single demonstration set or one for every group, the quotation lists the packing, delivery time and price for that number of sets. A thermometer, a stopwatch or extra masses can be placed on the same quotation.
Having an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Oman, the Philippines, Nepal, Bangladesh, Zambia and Rwanda. Ask for a price on the contact page, gather items in the enquiry cart, or read the lab tender page about supplying institutional tenders.
Frequently Asked Questions
How quickly does the water temperature rise?
The temperature of the water in the copper vessel rises after two to three minutes of rotation, as the vanes convert kinetic energy into heat by friction. Read it on a thermometer held in the clamping device.
Are weights and a thermometer supplied?
Two sets of slotted weights and the cord are supplied with the apparatus. A thermometer is not included, so use a suitable laboratory thermometer of your own or ask for one on the same quotation.
What principle does the apparatus explain?
It explains the production of heat by the friction of rotating vanes in water: mechanical work done on the system appears as a measurable rise in temperature, the idea behind Joule's mechanical equivalent of heat.
Is Science Lab Supplies the manufacturer or a trader?
As the manufacturer, Science Lab Supplies builds this apparatus at its own works in Saha, Ambala. Every quote is issued by the factory itself, so buyers are dealing with the maker rather than a distributor.
Related Heat Equivalent and Mechanics Apparatus
These items cover the electrical and flow methods for heat measurement and the wheels, pulleys and masses used to deliver mechanical work, so they complement a paddle-wheel experiment in the same heat or mechanics session and can be quoted together.
- Joule's Calorimeter — copper cup in a well-polished wooden outer vessel under a bakelite top.
- Callendar and Barne's Apparatus (Continuous Flow) — nichrome coil wound spirally along the axis of a glass tube.
- Copper Calorimeter Apparatus 3x2 — inner copper cup inside a 100 x 75 mm outer vessel with an air gap.
- Student Digital Joulemeter — runs from a 9 V DC mains adaptor with a 2 x 16 character LCD.
- Fly Wheel — balanced cast iron wheel on ball bearings, in 15, 20 or 25 cm diameters.
- Pulley on Rod with Clamp — 50 mm aluminium pulley held in a table clamp by a screw.
- Mass Set with Hangers — steel masses from 10 g up to 1000 g.
Browse the full Heat range, the Applied Mechanics range for wheels, pulleys and masses, or all physics lab equipment.
Last updated: 9 October 2026