Physical Balance (3-Stone) Manufacturer,Supplier and Exporter in India
Product Code : EL-MI-2131
Jlab Export is a leading Physical Balance (3-Stone) Manufacturer,and suppliers in India
Physical Balance (3-Stone) (code EL-MI-2131) is a 200 g beam balance with 3-stone agate knife edges and a sensitivity of 5 mg, used for routine weighing and upthrust practicals in school physics labs. It shares the build of JLab’s 7-stone model — agate bearings, 100 mm stainless steel pans and a teak case — and is supplied without weights. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Capacity | 200 g |
| Sensitivity | 5 mg |
| Knife edges | Agate, 3-stone |
| Bearings | Agate |
| Pans | Stainless steel, 100 mm diameter |
| Overall dimensions (L x B x H) | 420 x 240 x 380 mm |
| Other specifications | Same as the 7-stone model: double-hook hangers with detachable pans, golden lacquer finish with nickel-plated fittings, laminated (sun-mica) wooden base with levelling screw, teak wood case with panel doors |
| Weights | Not included (supplied without weights) |
| Quality check | Each balance is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-MI-2131 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Beam Balances?
| Model | Knife edges | Sensitivity | Capacity and pans |
|---|---|---|---|
| This balance (EL-MI-2131) | 3-stone agate | 5 mg | 200 g; stainless steel, 100 mm |
| Physical Balance (7-Stone) | 7-stone agate | 2 mg | 200 g; stainless steel, 100 mm |
| Chemical Balance | Agate | 0.2 mg | 200 g; inverse stainless steel, 70 mm; rider scale on the beam |
The 3-stone balance suits work where 5 mg sensitivity is enough, such as school weighing and upthrust practicals. Move up to the 7-stone model for 2 mg sensitivity in the same case, or to the chemical balance for 0.2 mg chemistry weighings.
What Is the 3-Stone Physical Balance Used For?
Students use it to measure mass by comparison with standard weights, to find the density of regular and irregular solids, and — by hanging a solid from the double hook beneath a pan — to measure its apparent loss of weight in water when verifying Archimedes’ principle. These are standard class 9 and class 11 physics activities, and the same balance handles everyday weighing of salts and specimens in junior chemistry and biology labs. A 5 mg sensitivity is ample for samples of a few grams or more; for very small samples a more sensitive balance is the better choice.
Place the balance on a level, vibration-free bench, adjust the levelling screw, and confirm that the empty pans balance before each session. Lower objects and weights gently onto the pans, close the teak case doors to keep draughts away, and keep the total load within 200 g. Because weights are not supplied, plan a weight box for each balance.
What to Specify When Ordering
- Weights — this balance comes without weights; add a physical weight box for each balance to the same enquiry.
- Sensitivity — this 5 mg 3-stone model or the 2 mg 7-stone model.
- Quantity — the minimum order is 10 balances.
Frequently Asked Questions
What is the sensitivity of the 3-stone physical balance?
5 mg, with a capacity of 200 g. The 7-stone version of the same balance is listed with 2 mg sensitivity.
Are weights supplied with it?
No. It is supplied without weights. JLab lists physical weight boxes separately; one is linked below.
What else is the same as the 7-stone model?
According to the listing, all other specifications are the same: agate bearings, detachable 100 mm stainless steel pans on double-hook hangers, golden lacquer with nickel-plated fittings, a levelled laminated wooden base and a teak case with panel doors, in an overall size of 420 x 240 x 380 mm.
Is it suitable for upthrust experiments?
Yes. The double hooks on the hangers let you suspend a solid below the pan and weigh it in air and in water.
What should an export enquiry contain?
The quantity, destination country and port or city, delivery terms such as FOB or CIF, the number of weight boxes, any packing or labelling needs, and a tender reference if applicable.
Who manufactures this balance?
JLab (Jain Laboratory Instruments Pvt Ltd) makes it at its Ambala works in Haryana, India, and quotes for it directly.
OEM Manufacturer
This balance is built by Jain Laboratory Instruments Pvt Ltd, trading as JLab, an Indian manufacturer of physics and general lab equipment, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. It comes from the company’s own works rather than a trading house, so schools, colleges, dealers and importers deal with the maker directly, each balance is visually inspected before dispatch, and repeat orders return to the same workshop. JLab exports worldwide and ships to buyers in every region — for example France in Western Europe, Senegal in West Africa, Angola in Central Africa, South Africa in Southern Africa and Iraq in the Middle East. Tender buyers can consult the lab tenders page.
Related Balances and Weights
- Physical Balance (7-Stone) — the 2 mg version of this balance.
- Physical Weight Boxes (Brass C.P) — chrome-plated brass weights with forceps and fraction weights, in 100 g and 200 g sets.
- Chemical Balance — a 0.2 mg balance with a rider scale for chemistry.
See the full Measuring Instruments range or the wider Indian Instruments range.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart enquiry button, or send the quantity (minimum 10 units), the weight boxes you need and your delivery location through the contact page.
Last updated: 9 October 2026
