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Thickness gauge
Thickness gauge (Product Code: SLE/CE/97) is a slotted gauge used to decide whether individual aggregate particles are flaky, meaning thinner than 0.6 of their nominal size, in civil engineering and highway materials laboratories. Materials labs and engineering colleges use it for flakiness index work; it has seven slots from 4.9 × 30 mm to 33.9 × 100 mm on a 310 × 130 × 10 mm body. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Purpose | Identifies flaky aggregate particles (thickness less than 0.6 of nominal size) |
| Number of slots | 7 |
| Slot sizes | 4.9 × 30 mm, 7.2 × 40 mm, 10.2 × 50 mm, 14.4 × 60 mm, 19.7 × 80 mm, 26.3 × 90 mm and 33.9 × 100 mm |
| Dimensions | 310 × 130 × 10 mm |
| Weight | 0.4 kg (approx.) |
| Product code | SLE/CE/97 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Aggregate Thickness Gauge Used For?
Flaky particles break easily under rollers and traffic and reduce the workability of concrete, so specifications limit how many a coarse aggregate may contain. For the flakiness index, the sample is first sieved into size fractions, and each particle of a fraction is tried by hand in the slot that matches that fraction. Particles that pass through the slot are flaky; their total mass as a percentage of the sample mass gives the flakiness index.
The gauge is light and small enough to use at a bench or on site, and one gauge covers all seven fractions. Keep the slot edges clean and free of burrs, and test one fraction at a time to avoid mixing results. It is a practical piece of lab equipment for technical institutes teaching highway materials and concrete technology.
OEM Manufacturer
This Thickness gauge is an OEM item from Jain Scientific Equipments Private Limited, which operates under the ScienceLab name. It is made at the company's own licensed factory at Saha, Ambala, Haryana, India, and supplied factory-direct rather than through a trading intermediary.
Colleges, testing laboratories, dealers and importers can place repeat orders with the manufacturer itself, which is useful when several benches need matching gauges. Read more on the ScienceLab company profile.
Related Civil Engineering Lab Equipment
Aggregate shape testing usually needs these items too:
- Flakiness Sieve Set — slotted sieves for checking whole fractions at once
- Test Sieves — for separating the sample into size fractions first
- Electromagnetic Digital Sieve Shaker — for faster, repeatable grading of the sample
- Shape Index Caliper — another method for assessing particle shape
See the complete range of Civil Engineering Lab Equipment.
Frequently Asked Questions
What slot sizes does the Thickness gauge have?
The Thickness gauge has seven slots: 4.9 × 30 mm, 7.2 × 40 mm, 10.2 × 50 mm, 14.4 × 60 mm, 19.7 × 80 mm, 26.3 × 90 mm and 33.9 × 100 mm. Each slot is used for one size fraction of the aggregate sample.
When is an aggregate particle flaky according to the Thickness gauge?
With the Thickness gauge, a particle is treated as flaky when its thickness is less than 0.6 of its nominal size, which shows up when it passes through the slot for its fraction. The mass of flaky particles gives the flakiness index.
How big and heavy is the Thickness gauge?
The Thickness gauge measures 310 × 130 × 10 mm and weighs about 0.4 kg. Its compact size makes it easy to use at a laboratory bench or to carry to a quarry or site for quick checks.
What is the difference between the Thickness gauge and a flakiness sieve set?
The Thickness gauge is used to test particles individually by hand in its seven slots, which suits teaching and small samples. A flakiness sieve set uses slotted sieves to check a whole fraction at once, which is quicker for larger routine samples.
Who manufactures the Thickness gauge?
The Thickness gauge is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab) as the OEM, at its own licensed factory in Saha, Ambala, Haryana, India. Quotations and repeat orders are handled directly by the manufacturer.
What should a quotation request for the Thickness gauge include?
A quotation request for the Thickness gauge should give the number of gauges, any test sieves or related shape-test items you need, and the delivery location. Send it through our contact page or the enquiry cart.
Request a Quote
Get a price for the Thickness gauge (SLE/CE/97) by writing to us through the contact page, or add it to the enquiry cart with your other aggregate test items. Quotes come direct from the manufacturer for India and international markets.
Last updated: 24 September 2026
