- Physics Lab Equipment
- Chemistry Lab Equipment
- Biology Lab Equipment
- Anatomical Lab Equipment
- Learning
- Educational Lab Equipment
- Magnets
- Agriculture
- Astronomy
- Earth Science
- Geography Lab Equipment
- Safety Lab Coat
- Laboratory
- Meteorological
- Electricity & Magnetism
- Heat
- School Lab Equipment
- Lab Glassware
- Science Lab Equipment
- Tvet Lab Equipment
- Robotics Kits Supplier and Manufacturer for Schools India
- Math Lab Equipment Manufacturers and Exporters in Ambala
- STEM Kits Manufacturers and Supplier India
- Engineering Lab Equipment
- Hospital Lab Equipment
- Water, Sanitation & Hygiene Supplies
- Cold Chain, Solar & Communication Equipment
- Nutrition
633.jpg)
Vane Shear Apparatus (Motorised)
Vane Shear Apparatus (Motorised) (Product Code: SLE/CE/74) is a laboratory vane tester used to measure the undrained shear strength of soft, saturated clay specimens that are too weak to trim for other strength tests. Soil laboratories and civil engineering colleges use its 230 V motor and worm gear to turn the vane at a slow 1/60 rpm through a calibrated torsion spring, reading torque on a degree dial. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM lab equipment manufacturer in India, at its own factory in Ambala.
Specifications
| Parameter | Detail |
|---|---|
| Torque head | Adjustable in height by a lead screw rotated by a drive wheel, to lower the vane into the specimen |
| Drive | Single-phase electric drive operating a worm gear that turns the upper end of a calibrated torsion spring |
| Rate of rotation | 1/60 rpm (one revolution per hour, 6° per minute) |
| Power supply | 230 V AC |
| Torque reading | Vane shaft attached through the hollow upper shaft to a resettable pointer on a dial graduated in degrees |
| Torque calculation | Dial reading multiplied by the spring factor gives the torque |
| Sample container | Container for the soil sample supplied; a sampling tube of 38 mm i.d. x 150 mm long can also be used as the container |
| Product code | SLE/CE/74 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Vane Shear Apparatus Used For?
The clay sample, in the supplied container or still in its 38 mm sampling tube, is set beneath the torque head, and the drive wheel lowers the vane into it. When the motor is switched on, the worm gear slowly winds the torsion spring, which in turn twists the vane. Once the clay shears, the pointer stays at the largest angle reached; multiplying that reading by the spring factor gives the torque, from which the shear strength is worked out using the vane dimensions.
The method suits very soft marine, alluvial and organic clays that would slump in an unconfined compression test, and repeating it on remoulded soil shows the clay's sensitivity. It is a regular part of engineering educational equipments in India for geotechnical practicals. Push the vane in gently and start rotation promptly so the soil around the blades is not disturbed or allowed to consolidate.
OEM Manufacturer
The motorised vane shear apparatus is an OEM product of Jain Scientific Equipments Private Limited, which trades as ScienceLab and makes it at its own licensed factory at Saha, Ambala, Haryana, India. Soil mechanics laboratories, universities, research institutes, dealers and importers receive it factory-direct.
Questions about additional torsion springs or sample containers go straight to the manufacturer — ask us and we will advise. Read more on our company profile.
Related Civil Engineering Lab Equipment
Vane shear results are usually compared with other clay strength and compressibility tests. These items are used in the same laboratory:
- Unconfined Compression Tester (Motorised) — strength of stiffer clay specimens that can stand unsupported
- Soil extruder, motor operated — pushing samples out of tubes after testing
- Consolidation Test Apparatus — settlement behaviour of the same soft clay
- Dial penetrometers — quick strength readings on the ends of sample tubes
- Moisture Tins — water content of the tested clay
Browse all Civil Engineering Lab Equipment.
Frequently Asked Questions
What does the Vane Shear Apparatus (Motorised) measure?
The Vane Shear Apparatus (Motorised) measures the torque needed to shear a soft clay specimen with a rotating vane, from which the undrained shear strength of the clay is calculated. It is especially useful for clays too soft for unconfined compression testing.
At what speed does the Vane Shear Apparatus (Motorised) rotate the vane?
The Vane Shear Apparatus (Motorised) rotates the vane at 1/60 rpm, which is one revolution per hour, using an electric drive and worm gear that turn the upper end of the calibrated torsion spring.
How is torque read on the Vane Shear Apparatus (Motorised)?
On the Vane Shear Apparatus (Motorised), a resettable pointer linked to the vane shaft shows the torsion angle on a dial graduated in degrees. Multiplying the dial reading by the spring factor gives the torque applied to the soil.
What sample container does the Vane Shear Apparatus (Motorised) use?
The Vane Shear Apparatus (Motorised) is supplied with a container for the soil sample. A sampling tube of 38 mm internal diameter and 150 mm length can also be used as the container, so tube samples can be tested directly.
What power supply does the Vane Shear Apparatus (Motorised) need?
The Vane Shear Apparatus (Motorised) operates on a 230 V single-phase AC supply, so it can be installed on a normal laboratory bench near a standard power outlet.
What vane dimensions and spring factor does the Vane Shear Apparatus (Motorised) have?
The vane size and spring factor of the Vane Shear Apparatus (Motorised) are needed to convert torque into shear strength. Please ask us for the vane and spring details of the unit you are quoted via our contact page.
Who manufactures the Vane Shear Apparatus (Motorised)?
The Vane Shear Apparatus (Motorised) is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab) as the OEM at its own factory at Saha, Ambala, Haryana, India, with quotations and after-sales questions handled by the manufacturer.
Request a Quote
Get a Vane Shear Apparatus (Motorised) quotation through our contact page or the enquiry cart. The manufacturer quotes directly for single units, multiple labs or export to international markets.
Last updated: 24 September 2026
