Sample Extruder
Sample extruder for removing compacted soil and pavement specimens from moulds without disturbance.
NABL TC-14144·
ISO/IEC 17025:2017·
Lab ID With 30 kg electronic balance

The Sample Extruder pushes compacted specimens out of their moulds — for example Proctor, CBR and core moulds — smoothly and without disturbing the specimen, so that density and strength measurements remain valid. It is a standard support instrument in soil compaction and CBR workflows.
What this equipment tests
- Extrusion of compacted Proctor / CBR specimens
- Undisturbed specimen removal for density & strength tests
- Support for MDD / OMC and CBR sample handling
Applicable Indian Standards
- IS 2720 (Part 8) — Determination of water content – dry density relation (heavy compaction)
- IS 2720 (Part 16) — Laboratory determination of CBR
Related NABL testing services
Frequently asked questions
What is a sample extruder used for?
To push compacted soil or pavement specimens out of their moulds smoothly, so that density and CBR measurements are not disturbed.