Cone Penetrometer
Product Code : LSK-SM-10663
Cone Penetrometer (SKU LSK-SM-10663) is a laboratory instrument for finding the liquid limit of soil by letting a weighted cone sink into a soil paste. It is especially useful for soils with a low plasticity index and is an alternative to the Casagrande cup. Soil mechanics labs in engineering colleges, polytechnics and TVET centres use it. Quotations for it come from Science Lab Supplies in Ambala, India, which serves these institutes as well as tender contractors and distributors.
Specifications
Below, each stated detail of the liquid limit cone has a separate row. In short, a cone with a total sliding weight of 148 g is released into a cup of soil paste, and the moisture content at which it penetrates 25 mm is taken as the liquid limit, found by interpolation across several water contents.
| Specification | Value |
|---|---|
| SKU | LSK-SM-10663 |
| Test | Liquid limit of soils |
| Method | Cone penetration |
| Total sliding weight | 148 g |
| Liquid limit penetration | 25 mm |
| Liquid limit criterion | Moisture content at 25 mm cone penetration |
| Cone geometry | Confirmed on the quotation |
| Particularly suited to | Soils with a low plasticity index |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Cone Penetrometer
The cone method determines the liquid limit, one of the Atterberg limits used to classify fine-grained soils and estimate their compressibility. Because the result rests on a measured penetration rather than judging when a groove closes, it gives repeatable readings for students and technicians.
- B.Tech / B.E. civil engineering: liquid limit by cone penetration, combined with the plastic limit from the Plastic Limit Set to find the plasticity index.
- Diploma civil engineering: soil classification practicals on silts and clays, with the paste mixed in a Porcelain Dish using a metal Spatula.
- TVET lab equipment for construction and road works modules: checking the plasticity of fill and subgrade soils.
Standard Scope of Supply
The Cone Penetrometer is supplied as a single unit as described above; any optional accessories are listed on the quotation. Moisture containers and a drying oven for the test samples are separate items and can be quoted with it if your lab does not already have them.
Packing, MOQ and Lead Time
One penetrometer or a full class set can be quoted, and the quotation gives the packing, delivery time and price for that quantity. Plastic limit and shrinkage limit sets can join the same quotation, giving a complete Atterberg limits bench from one laboratory equipment supplier in India.
With an Importer-Exporter Code as a registered exporter, Science Lab Supplies can ship to buyers in Qatar, Sri Lanka, Vietnam, Malaysia, Peru and Egypt. Use the contact page to confirm the cone geometry your method needs, drop the penetrometer into the enquiry cart with other Atterberg items, or submit tender paperwork via the lab tender page.
Frequently Asked Questions
How is the liquid limit read with a cone penetrometer?
Soil paste is mixed at several water contents and the cone is released into each. The water content at which the 148 g cone penetrates 25 mm is the liquid limit.
Should a lab choose the cone or the Casagrande apparatus?
Both determine the liquid limit. The cone relies on measured penetration rather than groove closure and is noted as especially useful for low-plasticity soils, so a lab can teach the two methods side by side.
Who supplies the Cone Penetrometer?
Supply is handled by Science Lab Supplies from Ambala, India. It answers enquiries from colleges, polytechnics, training centres, contractors and distributors with a quotation stating the cone details and accessories offered.
Related Atterberg Limits and Moisture Equipment
Liquid limit is one of the Atterberg limits, so the items below complete the picture: cup-type liquid limit devices for comparison, the plastic and shrinkage limit tests, grading, and equipment for drying and cooling moisture samples. Most come from the Soil Mechanics range, and all fit on one quotation.
- Hand Operated Casagrande Equipment — brass cup that drops exactly 1 cm onto a hard rubber base, with a grooving tool.
- Motorised Casagrande Equipment — gear-motor drive on 220 V AC with a mechanical drop counter.
- Plastic Limit Roller — top and bottom plates separated by 3.2 mm side rails.
- Shrinkage Limit Set — includes a 25 ml x 0.5 ml glass cylinder and an acrylic prong plate.
- Particle Size Analysis Test Set — hydrometer bath controlled from ambient to 60 °C.
- Laboratory Bench Oven — microcomputer PID control with a 1–9999 min timer.
- Glass Desiccator — enclosed chamber for cooling oven-dried specimens before weighing.
Browse the full Soil Mechanics range, the Chemistry Lab range for dishes and spatulas, or all TVET lab equipment.
Last updated: 9 October 2026
