CBR Test Machine Hand Operated
Product Code : LSK-SM-10649
CBR Test Machine Hand Operated (SKU LSK-SM-10649) is a laboratory set for the California Bearing Ratio test, in which a 50 mm piston is pressed into soil compacted in a 150 mm mould and the load for set penetrations is recorded. Soil mechanics and highway engineering labs in engineering colleges, polytechnics and TVET institutes use it. Colleges, training centres, tender contractors and distributors obtain the set through Science Lab Supplies, whose Ambala, India office prepares each quotation.
Specifications
The hand-operated CBR set is broken down part by part in the table that follows. Put briefly, a 5000 kg hand-driven load frame with high and low rates of load-screw travel drives the piston, while the gun-metal or brass mould, spacer disc, surcharge weights, swell plate and rammers prepare and test each specimen.
| Specification | Value |
|---|---|
| SKU | LSK-SM-10649 |
| Load frame | Hand operated |
| Load frame capacity | 5000 kg |
| Load screw travel | High and low rates |
| Mould material | Gun-metal/brass |
| Mould size | 150 mm internal diameter x 175 mm high |
| Mould base | Perforated base plate |
| Extension collar | 50 mm high |
| Spacer disc | Circular metal, 148 mm dia x 47.7 mm high, detachable handle |
| Penetration piston | 50 mm face diameter |
| Dial gauge bracket | Adjustable, on the piston |
| Annular surcharge weight | 2.5 kg, 147 mm dia, 53 mm central hole |
| Slotted surcharge weight | 2.5 kg, 147 mm dia, 53 mm slot |
| Perforated swell plate | Gun-metal/brass, 148 mm dia, adjustable stem and lock nut |
| Dial gauge tripod | Metal |
| Cutting collar | Included |
| Rammers | 2.6 kg and 4.89 kg |
| Rammer drops listed | 310 mm and 450 mm |
| Not included | Proving ring, dial gauge |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the CBR Test Machine
The machine measures the CBR value of subgrade, sub-base and base materials compacted in the laboratory, the figure used to design flexible pavement thickness. Specimens can be tested unsoaked or after soaking, with swell read on the tripod, in degree, diploma and TVET highway engineering practicals.
- B.E./B.Tech civil engineering: laboratory CBR test for pavement design, with the field density of the same layer checked on the Sand Replacement Equipment.
- Diploma civil engineering: compacting soil in the CBR mould and penetration testing.
- TVET road construction modules: testing subgrade soil and granular materials, with gravel first reduced to a test portion in the Sample Splitters (Riffle Boxes).
Standard Scope of Supply
One of each listed item: load frame, mould with base plate and collar, spacer disc, piston, annular and slotted weights, perforated swell plate with tripod, cutting collar and rammers. The set is supplied without proving ring and dial gauge, which are chosen separately and can be quoted with it.
Packing, MOQ and Lead Time
Ask for a quotation for one machine or for several for a highway lab or vocational training centre; the quotation gives packing, delivery time and price for your quantity. A proving ring and dial gauges can be added to it.
With its Importer-Exporter Code, Science Lab Supplies is a registered exporter able to ship to buyers in Kenya, Ghana, Ethiopia, Tanzania, Uganda and the UAE. To have the CBR set priced with or without a proving ring, outline the requirement on the contact page, drop it into the enquiry cart, or consult the lab tender page if a tender governs the purchase.
Frequently Asked Questions
Are the proving ring and dial gauge included?
No. The machine is supplied without proving ring and dial gauge, so they can be matched to the loads in your tests and added to the same quotation.
What mould size does it use?
A gun-metal or brass mould of 150 mm internal diameter and 175 mm height, with a perforated base plate, a 50 mm extension collar and a 148 mm spacer disc.
How is swelling measured?
During soaking, the perforated plate with adjustable stem rests on the specimen and a dial gauge held on the metal tripod records its rise. The dial gauge is ordered separately.
Who supplies the CBR Test Machine Hand Operated?
The set is supplied by Science Lab Supplies from Ambala, India. Its quotation names every part listed above, so a highway lab can check the load frame, mould, weights and rammers against its own specification before ordering.
Related CBR, Compaction and Swell Equipment
Laboratory CBR sits between compaction and field testing in a highway engineering course. These Soil Mechanics items cover the neighbouring steps, from compacting and drying specimens to swell checks and testing the same soil on site, and each can be quoted with the machine.
- Motorised CBR Machine — 50 kN twin-column frame with 800 mm vertical clearance.
- Field CBR Equipment — 50 kN field jack with 10, 28 and 50 kN proving rings.
- Automatic Mechanical Soil Compactor — takes 152 mm and 102 mm moulds, with 2.5 kg and 4.5 kg hammers.
- Laboratory Bench Oven — 220-litre oven with a 1–9999 min timer.
- Plate Bearing Test — 5 m span bridge support and 0.01 mm dial gauges.
- Expansion Index Test Apparatus — 101.6 mm stainless steel ring and 5.7 kg brass loading weight.
- Soil Volume Change Meter — 70 mm specimen ring with potential volume change charts.
Browse the full Soil Mechanics range, the Concrete Laboratory range for aggregate tests, or all TVET lab equipment.
Last updated: 9 October 2026
