Proving Ring Penetrometer Manufacturer,Supplier and Exporter in India
Product Code : TVT-STE-10562
The Proving Ring Penetrometer is a portable field instrument used to determine the bearing strength and compaction degree of subgrades by measuring the penetration resistance of soil, using a calibrated proving ring in place of a hydraulic load gauge.
How It Works
A penetration piston is pushed into the soil at a controlled rate while the reaction force is measured through the deflection of a calibrated proving ring, giving a direct force reading without the need for hydraulic components. This makes the instrument compact, robust and well suited to rapid field checks of subgrade and pavement layer compaction.
Technical Specifications
| Parameter | Specification |
|---|---|
| Capacity | 1 kN |
| Case Dimension | 870 (L) x 250 (W) x 115 (H) mm |
| Approx. Weight | 6.7 kg |
Applications
The Proving Ring Penetrometer supports rapid field assessment of subgrade bearing strength and compaction quality control, in line with the in-situ penetration resistance principles of IS 2720 (Part 16) and ASTM D4429: Standard Test Method for CBR of Soils in Place. It is used by site engineers to verify that compacted layers meet design bearing strength before pavement construction proceeds.
Related Products & Category
Listed under Soil Testing Equipment. Related products: Field CBR Test Set 78 kg and Advance CBR Loading Tester 50kN.
Frequently Asked Questions
What does a proving ring measure?
A proving ring is a calibrated steel ring whose elastic deflection under load is measured to give an accurate force reading, used here in place of a hydraulic gauge.
What is this instrument used to check?
It is used to check the bearing strength and compaction degree of subgrades via the penetration resistance of the soil.
How does it compare to a full Field CBR Test Set?
The Proving Ring Penetrometer is a lighter, more portable instrument for rapid checks, while a full Field CBR Test Set (per ASTM D4429) is used for a complete in-situ CBR determination.
Request a Quote
To get a quotation for the Proving Ring Penetrometer, tell us the test standard you work to, the quantity and the delivery location. Request a quote from Tvet Equipments.
Last updated: September 2026
