Bell Jar Manufacturer,Supplier and Exporter in India
Product Code : EL-SLE-5551
Jlab Export is a leading Bell Jar Manufacturer,and suppliers in India
Bell Jar (code EL-SLE-5551) is a borosilicate glass bell jar, 30 cm high and 20 cm in diameter, with an open socket top. It is used in school and college science labs to cover apparatus, plants or a ringing bell in demonstrations of sound, photosynthesis and transpiration, and the open top lets a stopper, tube or electrical leads pass into the jar. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Material | Borosilicate glass |
| Height | 30 cm (300 mm) |
| Diameter | 20 cm (200 mm) |
| Top | Open, socket top |
| Quality check | Each bell jar is visually inspected before dispatch |
| Pack quantity | Each (sold by number) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-SLE-5551 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Bell Jars?
| Model | Glass | Height x diameter | Top and rim |
|---|---|---|---|
| This bell jar (EL-SLE-5551) | Borosilicate | 30 x 20 cm | Open socket top |
| Bell Jar | Glass | 200 x 100 mm; 225 x 150 mm | Ground glass stopper at top; ground rim |
| Bell Jar Knobbed | Soda glass | 8 x 4 cm up to 18 x 10 cm | Knobbed top; ground flange |
Choose this jar when you need the larger 30 x 20 cm size in borosilicate glass with an open top for leads or tubing. The smaller jars suit bench-top demonstrations, and the listed ground rims and flanges are worth asking about if you plan vacuum work.
What Is a Bell Jar Used For?
A bell jar encloses a space so that what happens inside can be watched through the glass. In class 8 and class 9 science, an electric bell is hung inside the jar on leads passed through the top, and as the air is pumped out the sound fades, showing that sound needs a medium to travel. In class 10 biology, a potted plant is covered with a bell jar together with a dish of potassium hydroxide to show that carbon dioxide is needed for photosynthesis, and a covered plant shows droplets of water given off by its leaves. Bell jars are also used to keep dust off apparatus and to enclose small experiments with gases.
Stand the jar on a flat, clean plate, and seal the top with a stopper or bung when the experiment needs an enclosed space. Borosilicate glass copes with temperature changes better than soda glass, but any glass jar can crack if knocked, so lift it with both hands and use a safety guard if it is placed under vacuum.
What to Specify When Ordering
- Size — this 30 x 20 cm jar, or a smaller bell jar for bench-top work.
- Rim and plate — ask JLab about the rim finish and a matching plate if the jar will be used under vacuum.
- Quantity — the minimum order is 10 units.
- Demonstration items — add a vacuum pump or a bell-in-bell-jar set to the same enquiry.
Frequently Asked Questions
What size is this bell jar?
It is 30 cm high and 20 cm in diameter, made of borosilicate glass, with an open socket at the top.
What is the socket top for?
The open top takes a stopper or bung, through which wires, a tube or a thermometer can be passed into the jar, or it can be closed off completely.
Can it be used under vacuum?
The listing does not state the rim finish or a vacuum rating. Ask JLab before using it for vacuum demonstrations, use a suitable plate, and always place a guard around glass under vacuum.
Is a base plate included?
The listing covers the bell jar and does not mention a plate. Ask JLab if you need one with the jar.
What should an export quotation request include?
The quantity, destination country and port or city, delivery terms such as FOB or CIF, packing or labelling needs, and a tender reference if relevant.
Who manufactures this bell jar?
Jain Laboratory Instruments Pvt Ltd (JLab) makes it at its works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a manufacturer of laboratory glassware and science demonstration apparatus in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. Bell jars are made at JLab’s own works and are not bought in from traders, so schools, colleges, dealers and importers order them factory-direct, each jar is visually inspected before dispatch, and repeat orders are handled by the manufacturer. JLab exports worldwide and ships to buyers in every region — for example Canada in North America, Trinidad and Tobago in Central America and the Caribbean, Argentina in South America, Albania in Southern Europe and Hong Kong in East Asia.
For Bell Jar Demonstrations
- Bell in Bell Jar — an electric bell hung inside a bell jar to show that sound needs a medium.
- Vacuum Pump — a rotary-vane vacuum pump for evacuating the jar.
- Acrylic Bell Jar — a bell housed in an acrylic jar, listed for safety in sound demonstrations.
- Bell Jar (Plant Physiology) — a thin glass bell jar for plant physiology work.
See the full School Lab Equipment range.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart enquiry button on this page, or send the quantity (minimum 10 units), whether you need a plate or pump, and your delivery location through the contact page.
Last updated: 4 October 2026
