Liquid Limit Penetrometers
Product Code : EL-STLE-10382
Liquid Limit Penetrometers (code EL-STLE-10382) are cone penetrometers used to find the moisture content at which clay soils pass from the plastic to the liquid state, and also to determine undrained shear strength. Each stands on a cast iron base with levelling screws, carries a digital penetration gauge reading to 0.01 mm with automatic zeroing and an electronic release, and weighs approximately 8.5 kg; the semi-automatic model adds a magnetic automatic plunger release and an adjustable electronic fall timer.
Get a quote: use the Add To Cart enquiry button below, or send your quantity and delivery location through the contact page.
Specifications
| Parameter | Detail |
|---|---|
| Use | Determining the moisture content at which clay soils pass from a plastic to a liquid state; determination of undrained shear strength |
| Base | Cast iron, with levelling feet (levelling screws) and spirit level |
| Penetration gauge | Digital penetration measurement gauge, 0.01 mm precision |
| Zeroing and release | Release button with automatic zeroing; electronic release mechanism |
| Vertical adjustment | Micrometer vertical adjustment device; lead screw gear arrangement |
| Clutch | Clutch mechanism for reading the penetration and resetting |
| Head | Can be clamped at any desired height |
| Fine adjustment | Rack and pinion and pointer assembly for fine adjustment of the cone tip to the sample |
| Weight | Approx. 8.5 kg |
| Semi-automatic model | |
| Plunger release | Automatic controller releasing the plunger by a magnetic device |
| Height setting | Micrometer vertical adjustment |
| Fall timer | Adjustable electronic timer to set and read the fall time of the needle |
| Accessories | |
| Ordering | Penetration cones and sample cups are ordered separately |
| Penetration cones | 30° cone; 30° cone, 100 g; 30° cone, 400 g; 60° cone, 60 g |
| Cone test gauges | Gauge to check the condition of the cone; cone test gauge for cone 22-T0029/4 |
| Sample cups | 55 mm dia. × 40 mm deep; 75 mm dia. × 50 mm deep |
| Standards | BS 1377:2, UNE 7002, UNE 7377, UNI 10014, DIN 18122, NF P94-052-1 |
| Supply | |
| Product code | EL-STLE-10382 |
| Manufacturer | Engineering Lab Equipment, Ambala, Haryana, India |
What Are the Liquid Limit Penetrometers Used For?
In the cone penetration method a cone of set angle and mass is released onto the surface of a soil paste held in a cup, and the depth it sinks in a fixed time is measured. The test is repeated at several moisture contents, and the liquid limit is read from the plot of penetration against moisture content. The operator brings the cone tip just onto the soil with the rack and pinion and micrometer adjustment, zeroes the digital gauge and presses the release, then reads the penetration and resets the head with the clutch. On the semi-automatic model the magnetic release and electronic timer control the fall time.
What to Specify When Ordering
- Quantity — the number of liquid limit penetrometers required.
- Model — whether the semi-automatic model with magnetic plunger release and electronic fall timer is required.
- Cones and gauges — the penetration cones (30°, 30° 100 g, 30° 400 g or 60° 60 g) and cone test gauges needed, as cones are ordered separately.
- Sample cups — the number of 55 mm × 40 mm or 75 mm × 50 mm cups required.
Frequently Asked Questions
What can the penetrometer determine besides the liquid limit?
Besides the moisture content at which clay soil passes from the plastic to the liquid state, the cone penetrometer is also used to determine the undrained shear strength of the soil.
How is penetration measured?
A digital penetration measurement gauge reading to 0.01 mm shows the cone penetration, with a release button and automatic zeroing; a clutch mechanism allows reading and resetting between tests.
What does the semi-automatic model add?
It has an automatic controller that releases the plunger through a magnetic device, micrometer vertical adjustment and an adjustable electronic timer for setting and reading the fall time of the needle.
Are cones and sample cups included?
No, penetration cones and sample cups are ordered separately. The accessories offered are 30° cones, including 100 g and 400 g versions, a 60° 60 g cone, cone test gauges and 55 mm and 75 mm sample cups.
How heavy is the penetrometer and how is it levelled?
The penetrometer weighs approximately 8.5 kg and stands on a cast iron base with levelling screws and a spirit level for setting it up level.
Which standards are listed for these penetrometers?
The standards listed are BS 1377:2, UNE 7002, UNE 7377, UNI 10014, DIN 18122 and NF P94-052-1.
OEM Manufacturer
Buyers of the Liquid Limit Penetrometers deal directly with its maker, Engineering Lab Equipment (Engineering Labs Equipment Pvt Ltd), whose works are at Plot No. 43, Industrial Park, Sector 2, Growth Center, Saha, District Ambala, Haryana, India. The company designs, makes and tests soil testing equipment for classification, compaction, density, shear and consolidation tests, supplies engineering colleges, polytechnics, technical training institutes and research laboratories in India and overseas, and builds to institution-specific requirements on request. Tender details are on the Tenders/OEM page.
Related Soil Testing Equipment
- Liquid Limit Devices (Casagrande) — cam-operated brass cup liquid limit apparatus with blow counter, two grooving tools and height gauge.
- Plastic Limit Set — plastic limit apparatus with glass plate, 3 mm reference rod, moisture containers and basin.
- Shrinkage Limit Set — shrinkage dish, glass cup, three-prong Perspex plate and 25 ml cylinder set for shrinkage limit tests.
- Liquid Limit Device Motorized — motorised brass-cup liquid limit apparatus with cam drop, Casagrande and ASTM grooving tools.
See the full Soil Testing Lab Equipment range or all Civil Engineering Lab Equipment.
Request a Quote
For this and other soil testing lab equipment, schools and colleges can contact Engineering Lab Equipment, a manufacturer, supplier and exporter based in Ambala, India. Quotations are given on request: send the number of penetrometers, the model and the cones and sample cups required and your delivery location through the contact page, or add the Liquid Limit Penetrometers to the enquiry cart from this page.
Last updated: October 2026
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