Laboratory Vane Shear Apparatus (Motorized)
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Product Code : EL-STLE-10400
Laboratory Vane Shear Apparatus (Motorized) (code EL-STLE-10400) is an instrument for finding the shear strength of soil samples in the laboratory, rotating its vane at 1/60 R.P.M. under electric drive. The torque head is raised and lowered by a lead screw, torque is read from a resettable pointer on a dial graduated in degrees, and the unit runs on 230 V A.C. single phase, with four calibration springs of approx. 2, 4, 6 and 8 kg/cm² in a wooden case.
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Specifications
| Parameter | Detail |
|---|---|
| Use | Determining the shear strength of soil samples with a laboratory vane |
| Torque head | Adjustable in height by a lead screw rotated by a drive wheel, to lower the vane into the specimen |
| Vane rotation | Electrical, at 1/60 R.P.M. |
| Drive | Worm gear arrangement turning the upper end of a calibration torsion spring |
| Torque reading | Vane shaft attached through the hollow upper shaft to a resettable pointer on a dial graduated in degrees; torque = dial reading × spring factor |
| Sample container | Container supplied; a sampling tube of 38 mm i.d. × 150 mm long can also be used |
| Power supply | 230 V A.C., single phase |
| Springs | Set of four, approx. 2, 4, 6 and 8 kg/cm² |
| Case | Wooden carrying case |
| Standards | IS 4434-1967; vane diameter, rod diameter, vane size and vane height as per IS specifications |
| Product code | EL-STLE-10400 |
| Manufacturer | Engineering Lab Equipment, Ambala, Haryana, India |
What Is the Laboratory Vane Shear Apparatus (Motorized) Used For?
Laboratory vane tests give the undrained shear strength of soft cohesive samples, including those too weak to trim for a triaxial or unconfined compression test, and they are often made on soil still in its sampling tube. The operator lowers the vane into the specimen with the lead screw, fits the spring suited to the expected strength and starts the motor; the worm gear twists the top of the spring while the vane resists, and when the soil fails the resettable pointer marks the angle reached. Multiplying that dial reading by the spring factor gives the torque, from which the shear strength is calculated.
What to Specify When Ordering
- Quantity — the number of laboratory vane shear units required.
Frequently Asked Questions
At what speed does the vane rotate?
Rotation of the vane is electrical, at a rate of 1/60 R.P.M., driven through a worm gear arrangement on a 230 V A.C. single phase supply.
How is torque worked out?
A resettable pointer shows the torque angle on a degree-graduated dial, and this reading multiplied by the factor of the spring in use gives the torque.
Which springs are supplied?
A set of four calibration springs is included, one each of approx. 2, 4, 6 and 8 kg/cm², packed with the apparatus in a wooden carrying case.
Can the test be done in a sampling tube?
Yes. A container for the soil sample is supplied, and a sampling tube of 38 mm i.d. and 150 mm length can also be used as the container.
How is the vane lowered into the sample?
The torque head is raised or lowered by a lead screw turned with a drive wheel, so the vane can be set into the specimen to the required depth.
What standard is the laboratory vane listed under?
For laboratory vane shear testing of soil samples, the standard listed for this apparatus is IS 4434-1967.
OEM Manufacturer
Buyers of the Laboratory Vane Shear Apparatus (Motorized) 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
- In-Situ Vane Shear Test Apparatus — borehole vane shear set with 37.5 mm and 50.0 mm vanes and proving ring torque head.
- Direct Shear Test Apparatus — electrically driven shear box for 60 × 60 × 25 mm soil specimens with 12 strain rates.
- Unconfined Compression Tester (Motorized) — 5000 kg screw operated motorised load frame for unconfined compression of soil specimens.
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 laboratory vane shear units required and your delivery location through the contact page, or add the Laboratory Vane Shear Apparatus (Motorized) to the enquiry cart from this page.
Last updated: October 2026
