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Field CBR test set
Field CBR test set (Product Code: SLE/CE/64) is a portable mechanical jacking and load-measuring kit used to determine the California Bearing Ratio of soils in place on road construction sites. Highway engineers and civil engineering colleges use its 50 kN mechanical jack and 40 kN load ring in the field, or assemble the frame in the laboratory as a hand-operated CBR machine. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM laboratory equipment manufacturer in India, at its own factory in Ambala.
Specifications
| Parameter | Detail |
|---|---|
| Test locations | In-situ on site, or in the laboratory when the frame is assembled with the main components as a hand-operated CBR machine |
| Field application | Used with a vehicle bracket for in-situ bearing capacity of soils used in road construction |
| Mechanical jack | 50 kN capacity |
| Load ring | 40 kN capacity |
| Slotted surcharges | One 9 kg and one 4.5 kg |
| Penetration piston | Adjustable CBR penetration piston |
| Penetration dial gauge | 30 x 0.01 mm, with adjustable dial gauge holder |
| Extension rods | Set of 3 extension rods with adapters |
| Datum bar assembly | Two tripod stands and a 1220 mm long aluminium bar |
| Spare parts | Every component can be purchased individually as a spare |
| Product code | SLE/CE/64 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Field CBR Test Set Used For?
On site, a loaded vehicle gives the reaction: the mechanical jack is fixed beneath it through the vehicle bracket, and the extension rods carry the force down to the penetration piston resting on the prepared subgrade. Slotted surcharge weights placed around the piston stand in for the pavement layers above, the jack is turned steadily, and the load ring shows the force while the dial gauge on the aluminium datum bar records penetration.
Testing in place avoids disturbing the soil and shows how the subgrade actually behaves at its natural moisture and density, which helps engineers confirm a pavement design. Colleges can move the same parts indoors and build a hand-operated laboratory CBR machine, so one purchase of engineering lab equipment in India covers both site and classroom work. Level the tripod stands well away from the piston before zeroing the gauge.
What to Specify When Ordering
- Whether you need the vehicle bracket for field reaction quoted with the set
- Whether you also want the laboratory frame to use the set as a hand-operated CBR machine
- Any individual spares required, such as an extra load ring, dial gauge or extension rods
- Number of complete sets for your field teams or laboratory
OEM Manufacturer
The Field CBR test set is an original ScienceLab product. Jain Scientific Equipments Private Limited, which trades under the ScienceLab name, manufactures it as the OEM at its licensed factory at Saha, Ambala, Haryana, India, and ships it factory-direct to highway departments' laboratories, engineering colleges, dealers and importers.
Since each part of the set is also sold on its own, a replacement jack, load ring or surcharge weight can be quoted by the manufacturer itself whenever you need one — simply ask us. Company information is available on our company profile.
Related Civil Engineering Lab Equipment
Field CBR results are usually read alongside laboratory CBR values and density checks. These items support the same road investigation:
- Automatic CBR Test Apparatus — laboratory CBR on compacted samples for comparison
- Plate load bearing test apparatus — plate bearing tests on subgrade and pavement layers
- Core cutters — in-place density at each CBR test point
- Moisture Tins — moisture content of soil taken from the test spot
- Load ring penetrometer — quick strength checks to choose CBR locations
View every item in Civil Engineering Lab Equipment.
Frequently Asked Questions
What components are in the Field CBR test set?
The Field CBR test set contains a 50 kN mechanical jack, a 40 kN load ring, 9 kg and 4.5 kg slotted surcharges, an adjustable penetration piston, an adjustable dial gauge holder, a 30 x 0.01 mm dial gauge, three extension rods with adapters and a tripod-supported 1220 mm aluminium bar.
Can the Field CBR test set be used in the laboratory?
Yes, the Field CBR test set can be used indoors: its main components can be assembled in a frame to create a hand-operated laboratory CBR machine. Mention this use in your enquiry so the frame is included in the quotation.
What provides the reaction load when using the Field CBR test set on site?
The Field CBR test set is used with a vehicle bracket, so a loaded vehicle provides the reaction for the 50 kN mechanical jack. Tell us whether you need the bracket quoted along with the set.
Can I buy spare parts for the Field CBR test set?
Yes, every component of the Field CBR test set can be purchased individually as a spare part, from the mechanical jack and load ring to the surcharge weights, dial gauge and extension rods. List the parts you need when you contact us.
Who manufactures the Field CBR test set?
The Field CBR test set is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab) as the OEM at its own factory at Saha, Ambala, Haryana, India. Quotations, spares and repeat orders come directly from the manufacturer.
What should a quotation request for the Field CBR test set include?
A quotation request for the Field CBR test set should give the number of sets, whether the vehicle bracket and laboratory frame are needed, any extra spares and the delivery location in India or international markets.
Request a Quote
Send your Field CBR test set requirements through our contact page or add the set to the enquiry cart. The quotation is prepared directly by the manufacturer.
Last updated: 24 September 2026
